bluuebunny/crossref_metadata_2025 huggingface dataset:
Struktur Komunitas Makroalga di Perairan Jemeluk dan Penuktukan, Bali
Authors: Sari Ni Wayan Ayu Astini , Putra I Dewa Nyoman Nurweda , Widiastuti Widiastuti
Published: January 2023

Penelitian ini telah dilaksanakan di perairan Jemeluk dan perairan Penuktukan yang memiliki potensi bahari yang baik pada masing-masing perairandengan kondsi lingkungan yang berbeda dari masing-masing lokasi dimana perairanJemeluk dengan zona rataan terumbu dan perairanPenuktukan dengan zona lereng terumbu. Tujuan penelitian adalah untuk mengetahui struktur komunitas makroalga di perairan Jemeluk (rataan terumbu) dan Penuktukan (lereng terumbu). Pengambilan data strtuktur komunitas makroalga menggunakan metode transek kuadrat dengan ukuran 1x1 m ditempatkan mengikuti transek garis pada terumbu karang yang terdapat makroalga sepanjang 25 meter dengan interval setiap 5 meter. Identifikasi makroalga menggunakan buku identifikasi dari Food and Agriculture Organization of United Nation, The Living Marine Resources of the Western Central Pacific Volume 1: Seaweeds, Corals, Bivalves and Gastropods (FAO, 1998). Hasil penelitian menunjukkan persentase tutupan makroalga di perairan Jemeluk didapatkan 6 genus makroalga dengan persentase penutupan, kepadatan, dan dominansi tertinggi di oleh Halimeda (alga hijau). Indeks dominansi Simpson pada perairan Jemeluk berada dalam indeks dominansi rendah dan kenaekaragaman berada dalam indeks keanekaragaman Shannon-Wiener sedang. Selanjutnya perairan Penuktukan ditemukan 5 genus makroalga dengan persentase tutupan, kepadatan, dan dominansi tertinggi oleh Gracilaria (alga merah). Indeks dominansi Simpson pada perairan ini berada dalam kategori rendah dan kenaekaragaman makroalga pada semua stasiun berada dalam kategori indeks keanekaragaman Shannon-Wiener sedang.
Pemeliharaan Larva Ikan Kerapu Sunu (Plectropomus Leopardus) Stadia Awal Pada Bak Berbeda Warna
Authors: Setiawati Ni Ketut Maha , Melianawati Regina
Published: January 2023

Tank color supposed to have influence to larvae rearing of fish. The aim of this research was to know the effect of different tank colors in early stage larvae rearing of coral trout that started from hatching until 10 days after hatching. The tank colors tested were Yellow (Y), Blue (B), White (W) and Black (Bc). Larvae were fed rotifers and copepods. The observed parameters were rearing success rate, survival rate, total length, number of rotifers in larval digestive tract and light intensity above the water surface and which is reflected from the water. The results showed, rearing success rate in treatment (K) and (B) were four times, whereas in (P) two times and (H) once. Difference of tank colors did not have significantly effect to larval survival rate (P>0.05), which was 4.87±3.74% (Y), 2.28±3.52% (B), 0.28±0.49% (Bc) and 0.15±0.31% (W). In contrast, the difference of tank colors had very significant effect (P <0.01) on larval total length, where the larval total length from (H) and (P) is greater than (B) and (K). Larvae from (P) had the highest number of rotifers in their digestion tract, while larvae (B) had the least number. The light intensity above the water surface of each different tank colors did not differ much. However, the light intensity reflected from water surface from (K) and (P) had higher intensity than from (B) and (H). Based on these results, tank color yellow is highly recommended to use in early stage larvae rearing of coral trout.
The Competition among Fish Species Based on Types of Food in Buyan Lake, Bali, Indonesia
Authors: Jayanti Shanti Paramita , Julyantoro Pande Gde Sasmita , Kartika Gde Raka Angga
Published: January 2023

Buyan Lake is located in Bali Province, this lake has a variety of fish species which several of those species are introduced species that called as alien fish. The relationship interaction between native fish and introduced fish can be described based on the study of food habit and competition of food types. The study was conducted from January to March 2018. Types of fish caught in Buyan Lake during the study were 7 species of fish namely Oreochromis niloticus, Amatitlania nigrofasciata, Osteochilus vittatus, Cyprinus carpio, Xiphophorus hellerii var. 1, Xiphophorus hellerii var. 2, and Rasbora lateristriata. The results showed that the fish with the highest ISC value was Amatitlania nigrofasciata, while the fish with the lowest ISC (Index of Stomach Content) value was Xiphophorus hellerii var. 1. The standard deviation range of almost all fish species is close to zero, so it is suspected that the contents of the stomach are nearly similiar. Amatitlania nigrofasciata with the highest standard deviation values are thought to have a variety of gastric contents. Based on the analysis of the contents of the stomach content, Oreochromis niloticus, Osteochilus vittatus, and Xiphophorus hellerii var. 2 are belonging to herbivorous fish. While Amatitlania nigrofasciata, Cyprinus carpio, Xiphophorus hellerii var. 1, and Rasbora lateristriata are belonging to omnivorous fish, which are tending to herbivores. The competition of food type is quite strict, there is similarity of food among species of fish in Buyan Lake, which is mean that they are fighting over the same food resources.
Logam Berat Timbal (Pb) pada Air dan Plankton di Teluk Benoa, Badung, Bali
Authors: Sudarmawan Ade Riestiari , Suteja Yulianto , Widiastuti Widiastuti
Published: January 2023

Benoa Bay is the center of estuary of the six rivers in Bali Island. One of the sources of pollution is the input from the river to the waters, especially the liquid waste from the textile industry that contains heavy metals particulary Lead. Moreover, Benoa Bay is a busy area with shipping activities. Shipping activities could direct and indirectly contaminate the waters with Lead from its oil waste. The purposes of this research are to examine the Lead concentration in the surface waters and plankton, and to determine lead bioaccumulation in plankton in the Benoa Bay.  The samplings were conducted on May 2018. Lead concentration in the waters and plankton were analized using Inductively Coupled Plasma Emission (ICPE) with wet destruction method. The result shows that Benoa Bay is heavily contaminated by Lead. According to the Decree of the Minister Environment No. 51 of 2004 about Sea Water Quality Standards, concentration of lead in sea waters is <0.008 mg/L. Concentration of lead in Benoa Bay water surface is 0.001 to 0.053 mg/L and in plankton is 0.001 to 9.287 mg/Kg. It is found that the bioconcentration factor (BCF) of plankton is 593.45. This study emphasize that plankton are able to bioaccumulate Lead.
Keanekaragaman Vegetasi Akuatik di Peraian Danau Batur, Kintamani, Bangli
Authors: Suryawan I Made Hendy Wesha , Julyantoro Pande Gde Sasmita , Kartika Gde Raka Angga
Published: January 2023

Batur lake is an aquatic natural resource that has a very important value in terms of ecological functions and economic functions. Batur lake gets pressure due to discharges of various types of waste generated from plantation activities, community settlements, cultivated feed residues in floating net cages, tourism activities and water transportation waste. It can cause ecosystems disruption in Batur lake, especially on the aquatic vegetation. This study aims to determine the species diversity and the influence of community activities on aquatic vegetation in Batur lake. This research was conducted from February to March 2017 at Batur Lake using quantitative descriptive method. Sampling was conducted at five stations by taking data and samples of aquatic vegetation, measuring water quality (temperature, pH, DO, clarity and turbidity) and water samples for testing nitrate, phosphate and sulfide acid content. The aquatic vegetation species that found were seven types, namely Alternanthera philoxeroides, Persicria decipiens, Phragmites australis, Eicchornia crassipes, Ceratophyllum demersum, Pistia stratiotes and Azolla pinnata. The value of diversity is in the low category. Uniformity of aquatic vegetation in Lake Batur waters ranged from 0.62257 - 0.874. The dominant value ranges from 0.22435 - 0.61563. The highest density values were found in species of Alternanthera philoxeroides at station II with 880 ind/m2 and 40 ind/m2 of Persicaria decipiens as the lowest density species. The water quality parameters give a significant influence on the growth of aquatic vegetation in Batur lake waters.
Percampuran Turbulen Di Tenggara Samudera Hindia Saat Siklon Tropis Marcus Menggunakan Data ARGO Float
Authors: Khaldun Muhammad Hafidz Ibnu , Naulita Yuli , Koropitan Alan Frendy
Published: January 2023

Tropical cyclones are a phenomenon that occurs because of the interaction between oceans and atmospheric circulation. The southeastern Indian Ocean is one of the areas that has a high activity of tropical cyclones. Tropical cyclones that cross waters can result in mixing of water masses. The mixing process produces water mass entrainment between lower and upper layers which decreases temperature in the upper layer. The purpose of this study was to estimate the strength of turbulent mixing caused by tropical cyclones using Argo Float data. The result of this study shows the turbulent mixing caused by tropical cyclones was very strong in the surface layer. Turbulent mixing is not found before the cyclone and increases when the cyclone occurs. The increase in turbulent mixing was recorded at a depth of 50 m which had an energy dissipation value ranging from 6.86x10-8 - 1.93x10-4 W/Kg and a turbulent mixing value with a range of 1.0x10-3 - 2.51x10-1 m2 s-1. This study concluded that the turbulent mixing in the surface layer is caused by tropical cyclones which is the main factor triggering the increase in the dissipation of kinetic and turbulent energy at the sites.
Identifikasi Bakteri yang Berpotensi Mendegradasi Hidrokarbon dari Substrat Mangrove dengan Tekstur Berpasir, Berlumpur, dan Tanah Liat
Authors: Irene Desy Shintya , Dirgayusa I Gusti Ngurah Putra , Puspitha Ni Luh Putu Ria
Published: January 2023

Hydrocarbon compounds are commonly found in petroleum and gas, plastics, paraffins, and bitumen. Although hydrocarbons are the constituent compounds of the materials used by humans, some hydrocarbon compounds have adverse effects on the environment and humans. One alternative to solve this problem is by using Mangrove substrate in Ngurah Rai Forest Park, Bali which is the habitat of several species of bacteria that interfere with degrading hydrocarbons. This study aims to identify the bacteria that interfere with hydroxon, through macroscopic observation, microscopic and biochemical tests. The results of this study showed six isolate bacteria that interfere with degrading hydrocarbon compounds. Six isolates were from the genus Alcaligenes of sandy mangroves, Pseudomonas and Bacillus genus from muddy mangrove soils, and two genera of bacteria from clay substrate namely Alcaligenes and Bacillus. The disturbing bacterial proposals underlying the highest hydrocarbon were found on clay with a value of 58.51% and the lowest on sandy substrates, with a discount value of 0%. The highest value on the clay substrate can cause the clay substrate to bind hydrocarbons, air, nutrients, and oxygen higher than sandy and muddy soils. The lowest value on sandy substrate can lead to low bacterial capability and it takes a long time for bacteria to degrade hydrocarbons.
Efektifitas Umpan Tiruan yang Berbeda Warna Terhadap Hasil Tangkap Ikan tongkol (Euthynnus sp) di Perairan Tenggara Karangsem Bali
Authors: Putra I Kadek Dedy Antara , Karang I Wayan Gede Astawa , Faiqoh Elok , As-syakur Abd. Rahman
Published: January 2023

Catching Tuna Fish (Euthynnus sp.) in territorial waters of Southeast Karangasem, Antiga Kelod Village using trolling is very influenced by the type of baited. In a manner line, there are two type of baited that used for trolling, fishworm and lure. The objective of this research is to determine the effectiveness and the effect of lure on tuna fish catch (Euthynnus sp.) In territorial waters of Southeast Karangasem, Antiga Kelod Village. All of three baits are made about the size of the baits and have the same color, there are blue-white, red-white, and green-white, and it’s operated simultaneously on one unit trolling line for 12 times . This research using descriptive comparative analysis and complete randomized design statistic analysis (RAL). The results of this research obtain, the blue-wait color of the bait can produce 146 tuna fish (Euthynnus sp.) with an effectiveness value 34.27%, with average value of results catch is 12 tails on once trip. While for red-white color, produce 220 tuna fish with an effectiveness value 51.64%, and the average value of results catch is 18 tails on once trip, and the produce of green-white color is 60 tuna fish with effectiveness value 14.08%, the average outcome catch 5 tails on once trip.  Based on the results of the research The red-white bait was a bait with the highest catch and the highest effectiveness value.
Analisis Sebaran Total Suspended Solid (TSS) Berdasarkan Citra Landsat 8 Menggunakan Tiga Algoritma Berbeda Di Perairan Teluk Benoa, Bali
Authors: Kamajaya Gede Yuda , Putra I Dewa Nyoman Nurweda , Putra I Nyoman Giri
Published: January 2023

Total suspended solid is a suspended solid that causes turbidity in the waters. These particles cannot settle directly on the bottom of the water. TSS size and weight are smaller than sediment. TSS concentration if too high will inhibit the penetration of light into the water and result in disruption of photosynthesis. The number of human activities around the waters of Benoa Bay can produce pollutant waste into the waters which can cause negative impacts on the conditions of marine life. This TSS value is one part that plays a role in determining the environmental quality of a waters. Seeing the input from the rivers which empties into Benoa Bay, the need for research in the Benoa Bay area is related to total suspended solids. Technological developments, especially in remote sensing, make the implementation of mapping the distribution of TSS concentrations efficient. The method in this study used Landsat 8 satellite images and in situ data. This research was conducted in May 2018. The research location consisted of 30 points by purposive sampling. The TSS concentration value in situ has an average concentration of 301.65 mg / L. Middle waters have greater concentration because this is due to the effects of tides. TSS concentration values from images can be calculated using the Budhiman, Guzman and Parvati algorithms. The results of the calculation of the three algorithms have an error value above 30%. This may be due to differences in water conditions which result in differences in concentration from the insitu value and the value of satellite images in the waters of Benoa Bay.
Pendugaan CPUE dan Potensi Maksimum Lestari Ikan Layang Deles (Decapterus macrosoma) yang Didaratkan di PPN Pengambengan, Jembrana - Bali
Authors: Puspitha Ni Luh Putu Ria
Published: January 2023

Layang deles is one of the highest catches landed in PPN Pengambengan. PPN Pengambengan is a strategic fishery port owned by Jembrana with a function as a center or center for marine fisheries landing. Improvement of fishing technology will be related to the problem of abundance or availability of fishery resoure stocks, so it is necessary to study CPUE, MSY and JTB so that they can utilize the resources with optimal but still maintain its preservation in nature. This research has a purpose, which is to know the trend of CPUE, MSY and JTB of layang deles fish (Decapterus macrosoma) landed in PPN Pengambengan. The method used is a quantitative descriptive method using a surplus production analysis from Schaefer. The data used in this study are catch and fleet data from 2014 – 2019 obtained directly from the PPN Pengambengan office. The results showed the highest CPUE in 2015 amounted to 6,12 tons/fleet, but after that the CPUE trend tended to decline, especially since 2016 while the MSY value was obtained at 3.348,9 tons/year with a maximum sustained effort of 1.830 fleets/year. Furthermore, the JTB value is 80% of the MSY value, a figure of 2.679,12 tons/year is obtained. This indicates overfishing and over-exploitation in the PPN Pengambengan area. To prevent overfishing and over-exploitation, prevention can be done, such as limiting fishing capacity and effort can also apply fisheries management models, such as co-management and EBFM (eco-based fisheries management).
Inventarisasi Keanekaragaman dan Komposisi Jenis Echinodermata di Perairan Pantai Segara Samuh, Bali
Authors: Kartika I Wayan Darya , Sari Alfi Hermawati Waskita
Published: January 2023

Along with the development of tourism and the well-managed Nusa Dua area, local communities have the opportunity to be able to develop several beach tourism attractions, one of which is Segara Samuh Beach. One of the aquatic organisms that are generally affected by environmental changes is macrozoobenthos, especially the phylum Echinoderms. Based on this, it is necessary to conduct research on the composition of the species of Echinoderms and their distribution patterns. For this reason, it is necessary to conduct an inventory study of the types of echinoderms that exist in the waters of Segara Samuh Beach. This research will be conducted in the waters of Segara Samuh Beach (8° 47' 13.80'' South Latitude and 115° 13' 42.57'' East Longitude), North Kuta District, Badung Regency, Bali. The preliminary survey was carried out in April and data collection was carried out for 2 periods (May 2019 and August 2019). Sample inventory along with data processing and analysis was carried out at the Fisheries Laboratory, Faculty of Marine Affairs and Fisheries UNUD (Echinoderms sample). The largest species composition at Station I was sea cucumber (50%) and at Station II was dominated by snaking stars (54%). Stations III and IV have relatively the same or similar species composition (Figure 2). Subphylum Echinoidea is the species composition with the highest percentage, which are 78.79% and 80.95%, respectively. Other echinoderms found at these two stations were Asteroidea and Holothuroidea, 15.15% and 6.06%, respectively (Station III) and 14.29% and 4.76% (Station IV). Overall, the composition of the Echinoderm species consists mostly of the subphylum Echinoidea (47%), Ophiuroidea (47%), Asteroidea (7%), Holothuroidea (6%) and a little Crinoidea (1%).
Struktur Komunitas Fitoplankton di Perairan Teluk Benoa, Bali
Authors: Fitriana Ira , Suteja Yulianto , Hendrawan I Gede
Published: January 2023

Benoa Bay is a waters that have tourism activities, ship transportation routes and aquaculture. The reasearch of phytoplankton community structure conducted in February 2019. Phytoplankton sampling carried out horizontally by pulling the plankton net using a ship for 5 minutes. The plankton net used has a 30 µm meshsize, 50 cm in diameter and 1.5 meters in length. The composition of phytoplankton species consisted of Bacillariophyceae and Dinophyceae classes. The total abundance of phytoplankton individuals ranged from 268.07 sel/l to 2,500.59 sel/l with an average value 878.87 sel/l. The value range of phytoplankton diversity index was 0,31 to 1,47, with an average value is 0.87. This shows that in general the phytoplankton community has low diversity (H'<1). The phytoplankton uniformity index ranged from 0,14 - 0,58, with an average value is 0,35. This shows that in general the phytoplankton community has low uniformity (E<0.4). The value range of dominance index was 0,31 to 0,89, with an average value is 0.63. This shows that in general the dominance value is high (1>C>0.5). Relatively low uniformity values with relatively high dominance values indicate that the genus found during the study has a non-uniform composition and there is a dominating genus, namely the genus Coscinodiscus from the Bacillariophyceae class.
Karakteristik Mikroplastik pada Daerah Feeding Ground Pari Manta, Big Manta Bay, Nusa Penida
Authors: Argeswara Janis Khansa Putri , Hendrawan I Gede , Dharma IGB Sila , Germanov Elitza
Published: January 2023

Microplastic, the pieces of plastic sized < 5 mm, are dangerous materials for marine organisms where if is ingested can anatomically and physiogically change the marine organism. Manta rays (Mobula alfredi) are filter feeders where they eat planktons and small fishes by filtering seawater. Mantas can filter up to hundreds cubic meter everyday, indicating the chances of it ingesting microplastics. This research was conducted to find out the microplastic characteristics at Big Manta Bay, Nusa Penida. Samples were obtained at two sites, North and South Big Manta Bay, by trawling 6 times on each site that represents Big Manta Bay using a plankton net. Samples were processed by separating plastics and organic matters using density separation method, and afterwards identified based on its type, quantity and size using a dissecting microscope. Results from the research came back stating the microplastic abundance reached 123,767 pieces/km2, with a total number of microplastics up to 174 pcs. The types of plastics most frequently found are fragments (44,69%), films (38,55%), fiber (14,53%) and foam (2,23%). Samples were also analysed using FTI-R Spectrometry, where plastics are identified as Polypropylene (PP) and Low-density Polyethylene (LDPE). Both polymers are the top two polymers that are produced globally.
Komposisi Jenis dan Keanekaragaman Ikan Karang pada 3 Jenis Bahan Terumbu Karang Buatan (Artificial reef) yang Berbeda (Beton, Ban Bekas, dan Besi) di Teluk Jemeluk Amed, Karangasem, Bali
Authors: Danendra Ida Bagus Indra , Dharma I Gusti Bagus Sila , Faiqoh Elok
Published: January 2023

Artificial reef at Jemeluk Bay, Karangasem, Bali is one of the area’s fisheries potential. Artificial reef is an underwater structure that is made for fishes’ protection and feeding ground. The purpose of this research is to know and understand types of reef fishes that surround the artificial reef, as well as the artificial reef’s affect onto the fish’s abundance at Jemeluk Bay. The method used for reef fish monitoring by visual census at artificial reef made from concrete, rubber tire and steel. This research is done towards six coral reef structures to get the reef fishes composition, which is made out of 7 fish families, 17 species, with an abundance total of 708 individuals. The highest fish abundance was founded at the 2nd rubber tire artificial reef with 6,4 individuals/m2, and the lowest fish abundance was found at the 1st concrete artificial reef with 3,28 individuals/m2. From the calculation at six of the artificial reef structures, the diversity index varies between 1,2 – 1,57, which is categorized as low diversity. The diversity value shows that steel artificial reef have the highest fish species diversity, however is still categorized as low.
Pemetaan Habitat Dasar Perairan Dangkal Menggunakan Citra Satelit SPOT-7 di Pulau Nusa Lembongan, Bali
Authors: Astaman I Dewa Made Krisna Putra , Karang I Wayan Gede Astawa , Hendrawan I Gede , Setiawan Kuncoro Teguh
Published: January 2023

Shallow water habitat is one of the regions that has high dynamics and has an important role are ecologically and economically. The high dynamics of the ideal shallow water habitat is always followed by updating information so that an overview of the area is obtained in accordance with reality. Remote sensing technology is one of the technologies that can be used for mapping natural resource studies such as mapping of shallow water habitats with the satellite imagery. This study aims to map the distribution of shallow water habitats using SPOT-7 satellite imagery on Nusa Lembongan Island, Bali and test the level of accuracy. The method used true color composite and DII (Depth Invariant Index) transformation and uses the maximum likelihood classification. The classification scheme used 6 classes, namely sand, seagrass, macro algae, rubble, live coral, and dead coral. The results of this study indicate the distribution of shallow water habitat on Nusa Lembongan Island, Bali spread equally based on the level of water depth with a total area of shallow water habitat of 453.41 ha. The results of mapping accuracy test showed the overall accuracy of the DII transformation classification results is better than the composite image classification results with an overall accuracy of 75.43% and a kappa coefficient is 0.71. So from these results can be said that used of a water column correction with the DII method can improve image accuracy in mapping shallow water habitats.
Pengaruh Suhu Permukaan Laut terhadap Curah Hujan di Pulau Bali Tahun 2009-2018
Authors: Adiguna Ida Bagus Agung Parahita , Nuarsa I Wayan , Puspitha Ni Luh Putu Ria
Published: January 2023

Change in sea surface temperature (SST) has a huge impact to rainfall intensity. This research analysed the trend of SST all over Bali island for 10 years (from 2009 to 2018) using MODIS satellite level 3, covered 7.8958oSouth -8.8958oSouth and 114.4791oEast - 115.6875oEast. The data for rainfall trend was collected from 12 rain observer stations of BMKG (Indonesian Meteorological, Climatological, and Geophhysical Agency). The statistical correlation between SST and rainfall intensity were analyzed using Microsoft Excel software. The result found that the SST in Bali ranged from 25.4oC until 31.5oC. The change of SST has a similar pattern to the monsoon cycle where the western monsoon is relatively warmer than the eastern monsoon. The rainfall trend in Bali is closely related to the monsoon cycle. During the western monsoon,the average monthly rainfall value in Bali is more than 150 mm, while the rainfall value on the eastern monsoon is slightly different, which is <150 mm. The correlation between SST and rainfall is influenced by the monsoon direction.The correlation between SST and rainfall in the west and transitional season Iis weak with a coefficient correlation value of -0,46 at lag 0, whereas in the east and transitional season II showed a strong correlation coefficient value of 0.94 in lag 0 (in the same month).
PHYSICAL QUALITY, IN VITRO DIGESTIBILITY, AND FERMENTATION PRODUCTS OF SILAGE RICE STRAW ADDED VARIOUS TYPES OF LEGUMINOSE
Authors: F. K. KIRANA , CAKRA I G. L. O. , MARIANI N. P.
Published: January 2023

This study aims to determine the physical quality, dry matter digestibility, organic matter digestibility, N-NH3, and total VFA of rice straw silage added with various legumes. This research was conducted at Farm Sesetan and at the Laboratory of Animal Nutrition and Forage Laboratory, Faculty of Animal Husbandry Udayana University from No- vember to December 2020. The design used was a completely randomized design (CRD) with five treatments and four replications were P0 (90% rice straw + 5% pollard + 5% mollases), P1 (60% rice straw + 30% Calliandra calothyrsus + 5% pollard + 5% mollases), P2 (60% rice straw + 30% Gliricidia sepium + 5% pollard + 5% mollases), P3 (60% rice straw + 30% Indigofera zollingeriana + 5% pollard + 5% mollases), P4 (60% rice straw + 30% Sesbania grandiflora + 5% pollard + 5% mollases). The results showed that the best values for color, odor, and fungus were obtained in tre- atment P0, P1, and P4. Texture variable got the best value in treatment P0, P1, P2, and P3. The highest of dry matter digestibility and organic matter digestibility values were in the P4. The highest production of total VFA and N-NH3 was produced in treatment P1 and P2. Based on the research results, the addition of various types of legumes added to the rice straw silage can improve the physical quality, dry matter digestibility, organic matter digestibility, N-NH3 and total VFA of the silage.
CHEMICAL CHARACTERISTICS OF KEFIR COW’S MILK FORTOFICED ARABICA GROUND COFFEE DURING FERMENTATION
Authors: G. A. A. PUTRA , LINDAWATI S. A. , MIWADA I N. S.
Published: January 2023

The purpose of this study is to fine out the chemical characteristics of kefir cow’s milk fortified arabica ground coffee. The research was conducted in July to September 2020 at the Laboratory of Animal Product Technology and Microbiology, Faculty of Animal Husbandry, Udayana University. The study used a completely randomized design (CRD) with five treatments and three replications. The five treatments were: fermented cow’s milk kefir without fortification of Arabica ground coffee (P0), fermented cow’s milk kefir with 1% fortification of Arabica coffee (P1), fermented cow’s milk kefir with 2% fortified Arabica coffee (P2), cow’s milk kefir fermented with fortified Arabica coffee powder 3% (P3), cow’s milk kefir was fermented with fortified Arabica coffee powder 4% (P4). The observed variables were lactose content, fat content, protein content and pH value. The results showed that the chemical characteristics of cow’s milk kefir fortified with Arabica coffee during fermentation had a significant effect (P<0.05) on the fat content of pH but was not significantly different (P>0.05) on lactose and protein content was in all tre- atments. The conclusion of this study is that kefir fortified with 2%, 3%, and 4% Arabica ground coffee gave good results according to Codex standards.
TEXTURE AND ORGANOLEPTIC PROFILES OF BROILER MEATS FROM RAISING SYTEMS IN A CLOSED HOUSE
Authors: I N. S. MIWADA , SUKADA I K. , ARIANA I N. T.
Published: January 2023

The purpose of this study was to characterize the stock of broiler meat sourced from the cage maintenance sys- tem, especially related to mass quality at room temperature. The quality indicators observed included texture and organoleptic profiles of broiler chicken meat. The research methodology used a completely randomized design with 4 shelf-life treatments (S), namely S1 (1 hour); S2(3hours); S3 (5 hours) and S4 (7 hours). The results showed that the characteristics of broiler meat sourced from the rearing system in the cage gave a significantly different profile of meat texture, especially on the level of meat hardness during different storage times. However, the springeness, cohesiveness and gumminess values were not affected by the treatment. L* decreased with the shelf life of the value, but at 7 hours of storage there was an increase in the value of L*. While the value of a* at 7 hours of storage showed the highest value achieved from the increase in meat color as a result of dehydration on the surface of the meat. While the value of b* indicates an increase in meat color during storage at room temperature. Organoleptic aspects such as color, texture, taste, and total acceptance did not change during storage, except for the aroma aspect. The conclusion of the research is that the broiler chicken products that are carried out come from a closed house mainte- nance system if storage at room temperature does not change the profile texture, such as springeness, cohesiveness and gumminess, except for the hardness value. Overall, the organoleptic value was responded the same by consu- mers, except for the aroma at 7 hours of storage (S4).
THE EFFECT OF HUMAN RESOURCES FOR BEEF CATTLE FARMERS ON SUSTAINABLE LIVESTOCK DEVELOPMENT
Authors: R. ROMADHON , . AMAM , ROMADHONA S. , RUSDIANA S.
Published: January 2023

Human Resources (HR) in the beef cattle sector is one of the important factors needed and has a role in the sus- tainability and success of the livestock farming business. The purpose of this study was to analyze the influence of beef cattle human resources on sustainable livestock farming business development. The research variables consist of human resources (X) and 5 (five) dimensions of sustainable livestock farming business development, namely the ecological dimension (Y1), the economical dimension (Y2), the social and cultural dimension (Y3), the institutional dimension (Y4), and technological dimension (Y5). The research was conducted in Purnama Village, Tegalampel Sub-Districts, Bondowoso District. The research was conducted using by the observation method, Focus Group Discussion (FGD), and surveys and interviews with respondents. Analysis of the data used in this study is by using a simple linear regression method with SPSS 26.0. The results showed that the ecological dimension was positively and significantly influenced by beef cattle farmers HR by 0.202, the economical dimension was positively and sig- nificantly influenced by beef cattle farmers HR by 0.194, the institutional dimension was positively and significantly influenced by beef cattle farmers HR by 0.198, and technologal is positively and significantly influenced by the cattle farmers HR of beef cattle farmers by 0.174. The conclusion of this study is that beef cattle farmers HR have an effect on the sustainable livestock farming business development, especially on the ecological dimensions, economical dimensions, institutional dimensions and technological dimensions.
THE EFFECT OF USE OF CONCENTRATES BASED ON BROILER FARM WASTE IN RATIONS ON BODY WEIGHT LOSS AND DIGESTIVE ORGANS LANDRACE PIG
Authors: I N. T. ARIANA , WARMADEWI D. A. , PUTRI B. R. T. , MIWADA I N. S.
Published: January 2023

This research was conducted with the aim of knowing the effect of using protein concentrate based on broiler farm waste (KPLA) in rations on weight loss and digestive organ weight. The research used a completely randomi- zed design (CRD) with three treatments and four replications. The treatment is, A: with the use of 0% KPLA, B: with the use of 12% KPLA and C: with the use of 24% KPLA. The research used 12 pigs finisher phase with an average body weight of 66.6 ± 7.74 kg. The research parameters were body weight loss, small intestine weight and length, large intestine weight, and spleen weight. The results of the research were, after fasting for 12 hours, with the use of 0% and 12% KPLA there was a loss of body weight of 2.4% and 1.8% (P>0.05). The use of 24% KPLA (C) can increase body weight loss by 6.2%, significantly higher compared to A. The use of 0% - 12% KPLA does not cause a significant difference in the weight and length of the small intestine (P> 0.05), but with 24% KPLA (C) significan- tly reduced the weight of the small intestine by 11.9% and 11.3% in the length of the small intestine (P<0.05). The use of 0% - 24% KPLA did not affect the weight of the large intestine and the weight of the spleen (P>0.05). The conclusion of this research was the use of KPLA up to 12% did not cause significant changes in the parameters of slaughter weight, weight loss, weight and length of the small intestine. It is recommended to use KPLA in landrace pig rations up to 12%.
DAIRY COW REPRODUCTION DISPLAY (FRIESIAN HOLSTEIN) AT KPBS PANGALENGAN BANDUNG REGENCY
Authors: A. SUDRAJAT , KHAERUDIN A. R. , CHRISTI R. F.
Published: January 2023

Penelitian tampilan reproduksi sapi FH (Friesian Hostain) di KPBS Pangalengan telah dilakukan. Tujuan pe- nelitian ini adalah untuk mengetahui, mengkaji dan mengevaluasi reproduksi sapi FH di KPBS Pangalengan Ka- bupaten Bandung. Metode penelitian menggunakan metode survei, pengambilan data dilakukan secara purposive sampling dengan kriteria sapi perah yang sudah laktasi dan sudah beranak minimal dua kali serta melakukan sampling pada 47 responden anggota koperasi. Variabel yang dianalisa adalah umur pertama estrus, umur petama beranak, days open dan service per conception. Analisis data dilakukan secara deskriptif. Hasil penelitian menun- jukan bahwa rerata umur pertama estrus sapi FH di KPBS Pangalengan adalah 14,29 bulan, rerata umur pertama beranak 27,08 bulan, rerata days open (DO) 3,33 bulan dan rerata service per conception (S/C) 1,69 kali. Dapat disimpulkan bahwa tampilan reproduksi sapi Friesian Hostain di KPBS Pangalengan sudah cukup baik.
IMPACT OF PERTAMINA CSR ON COMMUNITY INTEREST FOR TURTLE CONSERVATION ON THE ISLAND OF SERANGAN
Authors: G. SUARTA , DANANJAYA I G. A. N. , MELATI N. P. Y.
Published: January 2023

In order to conserve turtles carried out by the community through the Turtle Conservation and Education Center (TCEC), PT Pertamina (Persero) DPPU Ngurah Rai through the Corporate Social Responsibility Program strongly supports the conservation and conservation of turtles on Serangan Island. The purpose of this study was to analyze the social and CSR impact of Pertamina on public interest in preserving the turtle economy on Serangan Island. This research was conducted on Serangan Island and the selection of this location was determined purposively. The population in this study found 137 people while the sampling technique in this study used a simple random sampling method of 42 people. Data analysis in this research is descriptive qualitative and quantitative. The resul- ts showed that the social impact of Pertamina’s CSR on public interest in turtle conservation on Serangan Island was seen from community development, community participation, and preservation of conservation programs in the good category with a score of 3.96. Meanwhile, the economic impact of Pertamina’s CSR on public interest in turtle conservation on Serangan Island which consists of indicators of employment, increased income, and tourism potential is in the good category with a score of 4.02. Suggestions for the community are expected to continue to monitor the conservation and preservation of turtles in order to increase tourism potential on Serangan Island.
DYNAMIC BEHAVIOR OF FLOOR SLAB WITH STIFFENER BEAM DUE TO BLAST LOAD FROM MODIFICATION OF REED EQUATION
Authors: Buwono Haryo Koco
Published: January 2023

Explosions in buildings are not always the result of terrorist attacks, but can also be caused by several work accidents due to explosive tools or materials as trigger of problems in construction. Friedlander's equation has many modifications including the Reed equation. Reed proposes a modification of Friedlander equation using 4th order polynomial. The Reed equation is still not close relatively to the Friedlander equation. The Reed equation is only calculated up to t = 25/7 (s) in the negative phase. Meanwhile, the Friedlander is calculated at t = 5 if both are reviewed at no load or one unit condition. It is necessary to evaluate using the 4th order polynomial equation which is close to the Friedlander explosion equation. Dynamic behavior of structures must be considered in the design of structural elements. The purpose of this study is to analyze numerically the effect of explosions on orthotropic slabs which have partial fixity placement and stiffeners in the x direction, namely in the short span direction. The behavior of the plate orthotropic configuration, the localized blast load are centered in the middle of the strain, and the effect of thickness and stiffening on the vertical deflection of the plates are solved numerically using two auxiliary equations in the x and y-directions. From the analysis, it is found that there is vertical deflection with related to time. This paper introduces the dynamic behavior of Reed's modified blast loads with 4th order polynomial on orthotropic plates with x-direction stiffener beam.
CANAL CAPACITY IN AREA IKIP AND PULOMAS
Authors: Satiawan Budi , Sholeha Puspita Maratus
Published: January 2023

IKIP’s Pump House is located on Inspeksi Kali Sunter street, North Jakarta, geographically located between 6°9'45.55" South Latitude and 106°52'53.8” East Longitude. While Pulomas’s Pump House is located on Perintis Kemerdekaan street North Jakarta, geographically located between 6 °10'0.71'' latitude and 106°52'51.66” east longitude. On the arterial road beside Ria-rio Reservoir to Kayu Putih street, floods often occur during the rainy season. That flood is caused by several factors, one of which is the drainage canal that can’t function properly. At several points of water canal that will lead to Pulomas’s Pump House there’s a lot of plastic waste and people's belongings that cause narrowing of canal. The high sedimentation in the form of mud also causes water capacity that can be accommodated by canal is not optimal. From the above conditions, it is necessary to do an analysis pump capacity to determine whether IKIP’s Pump House and Pulomas’s Pump House can still accommodate water discharge based on 15 years of rainfall lastly, and it is known that there are three canals in the Pulomas pump house that cannot accommodate the water discharge so that flooding occurs
Analysis of Redundant Building Construction Material: A Case Study for A Hospital Building Project in Bogor
Authors: Rakasiwi Aditya Gilang , Trijeti Trijeti , Irwanto Rachmad
Published: January 2023

Construction materials are very significant spending in a construction project. They may create losses to Implementation Budget Plan (IBP) whenever the number is excessive. This paper is intended to find causes of redundant materials for guidelines to next projects to avoid excessive number of redundant materials. This paper details driving factors to material redundancy, total value of redundant materials and percentage ratio of redundant materials total value over IBP value. To obtain those factors causing redundant materials, this research run a set of questionnaires referenced from journals and refined by expert professionals. The questionnaires set was then handed to managerial peers and other non-managerial respondents to acquire their responses. The questionnaire outcome provides clues on major driving factors. They are lack of control at site, lack of supervision and lack of allocated facility for redundant materials. Further studies in this paper using price details in IBP and unit conversion on redundant materials have come to a material redundant value of Rp. 383.940.000 from an IBP value of Rp. 31.125.169.000. The highest percentage ratio of redundant materials is from ceramics fitting works at 34.18% while total value percentage ratio of redundant materials over IBP is 1.23%.
UTILIZATION OF MADE AQUIFERS TO IMPROVE THE QUALITY OF CLEAN WATER TO DRINKING WATER
Authors: Imamuddin Mohammad , Hidayat Acep
Published: January 2023

The need for clean water quality has increased every year, especially in big cities in Indonesia. This is triggered by the high population growth which causes the need for clean water to be urgently needed. Lack of water catchment areas and green land exacerbates the amount of clean water. In addition, the cause of the decline in clean water quality is also influenced by the many negative activities carried out by humans, one of which is the activity of disposing of garbage in the river, reservoir / setu and drainage areas. The use of chemicals, namely Poly Aluminum Cholrid (PACPOWDER) in the processing of river water or river water requires high operational costs, which results in high costs for people who subscribe to PDAM. The filtering pattern of water can be done by referring to the soil layer in the form of an aquifer, so that the water that is not good can be filtered in the presence of an aquifer and can purify the water into drinking water. The use of artificial aquifers that have currently been carried out by the Ministry of Public Works is through rain, where through the filtration of rainwater containing acidic levels it can be neutralized through artificial aquifers into clean water and can be applied to areas of high drought levels.
THE INFLUENCE OF ROAD NETWORK DEVELOPMENT ON LAND USE (CASE STUDY: KARAWANG REGENCY, INDONESIA)
Authors: Soerjatmodjo Irnanda Satya
Published: January 2023

The aims of this research are to find out the most influencing sector that brings huge impact towards the economic growth of Karawang regency after Jakarta-Cikampek toll road is established, and to generate the mathematical model which enables to serve information about the GDRP (Gross Domestic Regional Product) value of agriculture sector based on the impact of industrial sector GDRP value, trading sector DGRP value, and number of populations in Karawang regency.
THE EFFECT OF U-TURN ON TRAFFIC FLOW CHARACTERISTICS (A CASE STUDY: JENDRAL BASUKI RACHMAT ROAD, EAST JAKARTA)
Authors: Al Hanif Basit , Darsono Noviandi Putra
Published: January 2023

The way to minimize traffic problems, especially the safety and comfort of roads is to build medians. The median as part of the road geometry is a physical separator of traffic lanes that serves to relieve traffic conflicts from the opposite direction. So, it improves traffic safety with a reversal facility, analyzes the average travel time of vehicles when making a U-turn, and analyzes the level of service on the Jendral Basuki Rachmat road. Therefore, this research aimed to determine the volume of traffic on Jenderal Basuki Rachmat road, determine the average speed of turning vehicles and determine the service level on Jalan Jenderal Basuki Rachmat Road. This research used the 1997 MKJI methodology. The research results explained that the largest volume of vehicles that make U-turns was 19966 vehicles/hour with a road service level of D. The average travel time of vehicles was 15.3 seconds with a queue length of 50 meters for a U-turn.
EFFECTIVENESS OF GOVERNMENT’S ELECTRONIC PROCUREMENT OF GOODS AND SERVICES IN ITS ROLE WITHIN THE GOVERNMENT’S PROJECTS
Authors: Wibowo Yan Ari , Trijeti Trijeti , Irwanto Rachmad
Published: January 2023

The government’s goods and services procurement are the major part in the state budget realization for its impact on performance of government’s departments. Considering the growing number of goods and services procurements, the government rules to set the procurement of goods and services electronically. This helps the government to run the state budget realization that is good in timekeeping, efficiency and accountability during procurement process. The effectiveness of electronic procurement of goods and services (e-procurement) of the government is strongly related to the government’s projects. This is presented in this study using a descriptive quantitative method on processed data output from SPSS v.23. The data was sourced from recorded government’s project in LKPP in 2019. The result shows good effectiveness level at 65,9% with supporting strong correlation value at 0,812 following consummated budget at 95,71%. Based on those statistics, this paper suggests that the run of government’s projects automatically would induce a consummated budget in which targets would be achieved and provide more benefits. Therefore, a good run of government’s projects needs better effectiveness of the government’s e-procurement of goods and services.
PERFORMANCE OF THE THREE-ARMED UNSIGNALIZED INTERCHANGE ON JALAN TIPAR CAKUNG, EAST JAKARTA
Authors: Setiawan Andika , Prasetyo Harwidyo Eko , Setiawan Heru , Soerjatmodjo Irnanda Satya
Published: January 2023

The growth of the population density greatly affects the level of transportation needs in the city of Jakarta. The increase in the number of vehicles that are lack of balanced with the development of infrastructure It will cause conflicts on the road, especially intersections. Therefore, it is necessary to conduct research on interchange to know the problems that occur. This research was conducted at the Tipar Cakung – Agung Sedayu interchange in East Jakarta with an observation time of 3 days. The method that used in this study is a field survey method, namely by collecting data on traffic. It carried out by recording the number of vehicles that pass through the intersection every 15 minutes. Then from the results of the survey and calculation with the analysis guided by Indonesian Road Capacity Manual (MKJI, 1997).  Based on the results of research for interchange performance in existing conditions, the highest traffic flow was obtained at 2831.7 pcu / hour, Degree of Saturation (DS) 1.05, delay on intersection (D) of 22.058 seconds/pcu and queue odds (QP%) in the range of values 44.93%-90.27%.