bluuebunny/crossref_metadata_2025_split huggingface dataset:
Utilization of UAV technology for mapping of mangrove ecosystem at Belawan, Medan City, North Sumatera, Indonesia
Authors: Thoha A S , Lubis O O A , Hulu D L N , Sari T Y , Mardiyadi Z 
Published: July 2022

Abstract
As the largest archipelagic state in the world, Indonesia has the largest mangrove forest in the world. Unfortunately, Indonesia is also listed as the country with the largest mangrove loss in the world. Mangrove forests in Belawan and their surroundings are also damaged and need restoration. The Unmanned Aerial Vehicle (UAV) is a technology that can assist monitor mangrove ecosystems in more detail. The objective of this study was to identify land cover in the Belawan Mangrove Ecosystem restoration area. The land cover analysis used aerial photo analysis from drones using the maximum likelihood classification method. Field surveys were conducted to obtain the accuracy of land cover analysis from aerial photographs. They were also conducted to find the types of trees that grow in the Belawan Mangrove Ecosystem, Medan. There are four types of land cover based on the classification results using the maximum likelihood method, including mangroves, water bodies, ponds, and settlements. The classification results obtained an overall accuracy test result of 92%. Restoration efforts are needed by mangrove area managers considering that non-forest land in the form of ponds and water bodies is still quite wide.
The impact of flooding on rice production in the Krueng Kluet Watershed, Aceh Province, Indonesia
Authors: Pirngadi R S , Rahmawaty  
Published: July 2022

Abstract
Kluet Utara is a sub-district in South Aceh Regency, Aceh Province. This sub-district is the largest rice field area in South Aceh Regency with an area of ± 1,627.34 Ha. Currently, lowland rice farmers in this district often suffer losses due to flooding from the Krueng Kluet watershed which has an impact on crop failure and the drifting of rice production that is carried away by flood currents, this greatly affects the decline in lowland rice production. This study aims to examine correlation the impact of flooding on lowland rice production and the relationship between flood-prone areas and the of lowland rice production in Kluet Utara Regency. In conclusion, before the flood the total production was 9,827 tons, productivity was 6.03 tons/ha. Meanwhile, when there was a flood, the production of lowland rice was 2,827 tons, the productivity was 1.73 tons/ha. The relationship of lowland rice production with moderate and high flood areas has a very strong correlation value. That is, there is a very large relationship on the decline in production during a flood, while in very high flood areas there is a correlation between the impact of flooding on a decrease in rice production.
The effect of Sargassum sp. porridge immersion to reduce levels of lead (Pb) and the organoleptic quality in blood cockles (Anadara granosa) from Belawan fishing port
Authors: Dewinta A F , Lubis R Y , Siregar R F 
Published: July 2022

Abstract
The east coast waters of North Sumatera experience high pollution pressure, which has an impact on the biota in it, especially blood cockles. Blood cockles are one type of fishery commodity taken from Belawan fishing port. They have a habit of eating by filtering the food in the water. Sargassum sp. is one of the marine biotas with a biofilter capability that can absorb compounds in waters. It can be used as a bioindicator of pollution and biocontrol of waters in native habitats. It is necessary to investigate the effect of concentration and duration of immersion with Sargassum sp. porridge to decrease Pb levels and maintain quality in blood cockles. Testing of lead heavy metal used AAS method and the quality test used scoresheet organoleptic for cockles. Immersion was carried out with porridge concentrations of 4%,6%,8%,10%. After obtaining the best concentration, the immersion test was carried out with a treatment time of 45,60,75,90 minutes. The best concentration is 10%, with an optimum Pb reduction of 58.67% with a Pb value of 0.998 mg/kg. The optimum time is 90 minutes with an effectiveness of 67.19%. The immersion time can maintain the organoleptic quality of blood cockles.
The threat of foodborne disease from raw seafood: isolation and molecular identification of bacteria from the gut of Portunus pelagicus
Authors: Kartika A I , Retnani T P , Fitria M S , Iswara A , Mukaromah A H 
Published: July 2022

Abstract

Portunus pelagicus is a marine commodity that is in great demand by consumers, especially coastal communities. Portunus pelagicus habitat in the sea allows contamination from microorganisms and marine waste. Proper cleaning and processing of Portunus pelagicus can cause foodborne disease. One part of Portunus pelagicus that contains a lot of contaminants is the gut. The process of isolation and molecular identification of bacteria from the gut of Portunus pelagicus is important. Portunus pelagicus samples that have been taken from the gut and extracted. Portunus pelagicus gut extract was put in NA media and continued into BAP media. Pure bacterial cultures were isolated using CIAA phenol DNA method and amplified using 16S rRNA followed by sequencing. Four bacterial isolates were obtained from the gut of Portunus pelagicus, namely PorTRJ6, PorTRJ8, PorTRJ9, PorTRJ10. PorTRJ6 are β-hemolytic bacteria and PorTRJ8, PorTRJ9, PorTRJ10 are α-hemolytic bacteria. Based on the results of sequencing the bacterial isolates had similarity with Vibrio parahaemolyticus, Uncultured bacterium clone RS-E27, Staphylococcus haemolyticus, Staphylococcus sp. Some bacteria found in the gut of Portunus pelagicus can cause foodborne disease. Portunus pelagicus is a high-protein seafood that can be toxic if it is not processed cleanly and properly.
Status of seagrass ecosystem in Pane Island, North Sumatera
Authors: Khairunnisa  , Dewinta A F , Siregar R F 
Published: July 2022

Abstract
Pane Island is surrounded by seagrass meadows where Enhalus acoroides was the only species found. This small island is located in Tapanuli Tengah Regency, North Sumatera. The seagrass density and coverage was determined by using seagrass watch method, while the status was classified based on the Decree of the Minister of Environment of the Republic of Indonesia. The percentage of seagrass canopy cover shows that the seagrass is in poor and less affluent/unhealthy condition with 19.33 - 30.20%. Meanwhile, the seagrass density on Pane Island ranges from 58 – 107 ind/m2. The density is well related to the coverage, shown from the regression analysis between density and cover where the value of R2 is 0.65. The highest biomass was found at station II with aboveground biomass of 303.09 g/m2 and belowground biomass of 607.86 g/m2, while the lowest was at station I with aboveground biomass of 163.17 g/m2 and belowground biomass of 327.25 g/m2. The distribution and the status of the seagrass in Pane Island can become a database and inventory, so that follow-up related to the management and protection of seagrass ecosystems can be carried out effectively.
Analysis of abundances and growth of Indo-Pacific tarpon fish (Megalops cyprinoides) on the estuary of leidong river North Labuhanbatu Regency
Authors: Harahap Z A , Awaliah N , Desrita  
Published: July 2022

Abstract
Leidong river flow is deriving from the Kualuh river basin as the largest river in Labuhanbatu District. The Leidong stream is possibly a water space with changed human exercises which has the potential to cause contamination and disturbance of oceanic biota. The purposes of this study were to figure out fish abundances and the growth of tarpon fish (Megalops cyprinoides) in the Leidong River, North Labuhanbatu District. The highest fish abundance was at station one which was 6 ind/m2, followed by stations 3 and 2 which were 5 and 4 ind/m2. The length and weight estimation of the catched angle at each station demonstrated the development of the tarpon fish with the esteem of b> 3 which is a positive allometric and the value of the condition factor of each K> 1, where this indicates that the condition of the fish in the estuary of the Leidong river morphologically can be said to have good plumpness.
Comparative study several feed formulation based on agro-industrial by-product on production performance and in vivo digestibility of beef cattle
Authors: Rahmawati N , Lisnanti E , Rudiono D , Mukmin A , Muladno M , Atabany A 
Published: July 2022

Abstract
The aims of this study was to determine the effect of agro-industrial by-products on the production performance and digestibility of nutrient of beef cattle with four feed formulations. The treatments such as F1, F2, F3 and F4. The material used was 28 cows with an initial weight in the range of 380.11 ± 13.69 kg with Simental and Limousine crossbreeds; beef cattle faeces samples were 112 samples from 4 feed treatments and 7 replications. The variables observed were production performance of beef cattle and digistibility of nutrient. The results of the study shows that the use of agricultural by-products has a significant effect on dry matter intake (P <0.05). (10.20 ± 0.43 kg/head/day), dry matter digestibility (75.48 ± 1.46%) and no significantly effect (P>0.05) on organic matter intake, crude protein intake, crude fibre intake, increasing of daily body weight, feed conversion ratio, feed efficiency, feed cost per gain, income over feed cost, digestibility of organic matter, digestibility of crude protein, and digestibility of crude fibre. The conclusion of this study was F3 had the best treatment to increase feed intake, digestibility of dry, digestibility of organic matter, digestibility of crude protein, crude fibre digestibility of beef cattle.
Analysis of factors affecting development dairy goat business in Hamparan Perak District of Deli Serdang Regency North Sumatera Province
Authors: Sembiring M , Hasnudi  , Ginting R 
Published: July 2022

Abstract
Goat farming become a main business, because goats breed relative quickly and are one of the types of livestock that are familiar with farming systems sustainability in rural areas. In the province of North Sumatra, in particular the Hamparan Perak sub-district, they have started to cultivate dairy goats. The research aims are to analyze what factors are the weaknesses, strengths, opportunities and threats in influencing thedevelopment of the dairy goat business in Hamparan Perak District; and to analyze and determine the effect of goat breeding factors, cage management, animal feed, maintenance, and harvesting systems on dairy goat business in Hamparan Perak District. The type of research used in this research is descriptive quantitative.The results showed that the factors that influenced the development of the dairy goat business in Hamparan Perak sub-district were the availability of breeds, cage management, animal feed management and harvesting systems and product marketing; and Simultaneously, goat breeds (X1), cage management (X2), animal feed (X3), goat care (X4) and harvesting system (X5) have an effect on dairy goat business (Y), while partially influencing variables are goat breeds (X1), Animal feed (X3) and goat care (X4).
The effect of brevibacillus laterosporus texasporus culture on percentage of carcass broilers chickens infected with salmonella pullorum
Authors: Purba M A , Sepriadi S , Yunilas  , Trisna A , Desnamrina K C , Hua L G 
Published: July 2022

Abstract
Salmonella is a common pathogenic bacteria in poultry production. Salmonella infection has been a principal challenge for the eco-friendly of broiler industry sustainability in the post-antibiotic era. The purpose of this research is to investigate the effects of Brevibacillus laterosporus texasporus culture (BT) on percentage of carcassed of broilers and also to determine whether Brevibacillus laterosporus texasporus culture has a potential to act as a probiotic additive within broiler diets. 300 one-day-old male Arbor Acres broilers chickens were randomly assigned to 5 treatments with 6 replications (10 individuals each replicate). The chicken challenged was infected with Salmonella Pullorum per os twice at 7 and 8 day-aged. The results showed The BT100 treatment showed had the highest carcass percentage or the best yield. The highest percentage of breast was found in the PC treatment while its did not show significant diference with BT50 and BT100. the average breast percentage ranged from 12.38 to 14.23%. The highest percentage of abdominal fat was obtained from the PC 2,16% and the lowest percentage of fat was observed in the NC1,45%. BT could protect chickens from the adverse impacts of Salmonella infection and it can be used as a feed additive to substitute antibiotics.
Improving the physical quality of beef meatballs using andaliman spice (Zanthoxylum acanthopodium DC) on shelflife
Authors: Patriani P , Apsari N L 
Published: July 2022

Abstract
Andaliman is a spice that has the potential as a source of natural antioxidants because it contains antimicrobial compounds that can inhibit damage to the food preservation process. Utilization of andaliman as traditional spice to increase the value of livestock products in terms of quality so that they can provide quality and sustainable food. This study aims to determine the best addition of andaliman for beef meatballs at 48 hours storage. The research method was a completely randomized design. This used 4 treatments which were repeated 6 times. The treatments in this study consisted of beef meatball dough with the addition of andaliman 0 grams (P0); 2 grams (P1); 4 grams (P2) and 6 grams (P3). The results showed that andaliman had a significant effect (P<0.05) on pH, water content, cooking loss, and meatball tenderness. It was concluded that the addition of andaliman to beef meatball dough could improve physical quality and prevent early signs of decay for up 48 hours. Andaliman is an alternative spice to improve the quality of processed livestock products as a safe, healthy, and sustainable food.
Physical quality of kampong chicken meat with cikala acid (Etlingera elatior) marinades at different shelf life
Authors: Patriani P , Wahyuni T H 
Published: July 2022

AbstractTraditional seasoning in livestock products is one of the efforts to provide safe and sustainable food. Cikala acid (Etlingera elatior) is usually used as traditional spices and herbs with a fresh aroma. The purpose of this study was to determine the effectiveness of cikala acid marinade (Etlingera elatior) on the physical quality of kampong chicken meat during shelf life of 24 to 48 hours. This study used a completely randomized design with a factorial pattern with 4 treatments and 4 replications. The materials used were kampong chicken breast and 0%, 2%, 4%, and 6% cikala acid (Etlingera elatior). The results showed that 4% cikala acid can maintain the pH value, reduce cooking loss, and increase tenderness. In addition, cikala acid marinade was also effective in maintaining water content, freshness, and colour during shelf life. The conclusion is that Kampong chicken meat marinated with 4% cikala acid extract can improve physical quality during shelf life of 48 hours. This also proves that the use of cikala acid (Etlingera elatior) is an alternative in improving the quality of kampong chicken meat as a safe and sustainable food.
Chemical and physical quality of broiler meat with drinking water containing boiled and fermented water of various cooking spices as phytobiotics
Authors: Sari T V , Hasanah U , Harahap R I H , Zalukhu P , Trisna A 
Published: July 2022

Abstract
The chemical and physical quality of broiler breast meat usually be improved by soaking the meat in a solution of cooking spices, but in here, the spices is used a solution were given to drinking water. This study aims to know its effect on the pH value, water content, fat content, and cooking loss. The design of research used a CRD with 9 treatments and 3 replications. The treatment given was broiler drinking water with the addition of: K0 (control); K1-K4 as afermented and K5-K8 is a boiled of cooking spice solution. The total use of various cooking spice is 125 g/L of mixing water of the broilers daily drinking water needs. The result of Anova showed that the addition of cooking spice had a very significanteffect on the levels of pH, water content, fat content and cooking loss of broiler meat. It can be concluded that the use of cooking spices especially based on garlic and Kaempferia galanga can be used during broiler rearing as a feed additive to improve meat quality in drinking water because it is effective in reducing pH, water, fat content and cooking losses.
Potential food plants around salt licks for Sumatran elephant (Elephas maximus sumatranus) in Tangkahan Conservation Response Unit (CRU) area
Authors: Berliani K , Patana P , Azmi W , Manullang N S M 
Published: July 2022

Abstract
The habitat of elephants (Elephas maximus-sumatranus) naturally provides a wide variety of feed, availability of water sources, shelter and salt licks. A variety of plants can be found in salt lick locations. This study was conducted from October to December 2020, in the Tangkahan CRU area, Langkat, North Sumatra, with the aim of obtaining fundamental information about potential plant species as natural food plants in the salt licks inside of the Tangkahan CRU area. Four salt licks were Encepan 1, Encepan 2, Namocencen and hot springs followed by vegetation data analysis at the tree, pole, sapling, and seedling levels. The study recorded 24 plant species from 17 families while potential food plants were recorded for 16 species from 11 families. The most common plants found were understorey plants with a high sapling community in the location. The highest understorey IVI was Colocasia sp1 (28.03) for understorey, Aglaia sp2 (57.869) for seedling, Aglaia sp1 species (69.877) for sapling, Baccaurea sp (110.653) for pole and Shorea sp (150.918) for tree. The composition of the vegetation at the salt location, starting from the growth rate of seedlings to trees, has a positive impact on the potential and natural food plants for elephants.
The effectiveness of fermented and boiled solution of various medicinal plants in drinking as phytobiotics on broiler performance
Authors: Sari T V , Hasanah U 
Published: July 2022

Abstract
Medicinal plants research as phytobiotics in poultry continues to be developed. Its aim to maintain body health so that it can produce good performance without relying on the use of antibiotic growth promoters which are often added to commercial animal feed. This study used various medicinal plants as phytobiotics in drinking using a CRD with 9 treatment and 3 replications. Parameters observed were feed intake (g/head), body weight gain (g/head) and feed conversion ratio. The treatment given was drinking water with: D0 (control), D1-D4 is boiled medicinal plant and D5-D8 is fermented medicinal plant of: Zingiber officinale, Curcuma longa, Allium cepa, Allium sativum, Coriandrum sativum, Kaempferia galanga, Alpinia galanga, etc. The concentration of the active ingredient as phytobiotics in drinking water treatments given was 1.06%/L of broilers daily drinking water requirement. The results showed that the giving of various medicinal plants had a very significant effect (P<0.01) on all parameters research of 5 weeks. It can conclude that the best use of medicinal plants is to use garlic (Allium sativum) boiled (D1) because it is very effective in producing the low feed conversion value andhigh body weight gain compared to others treatments.
Novel hybrid models to predict the capillary water absorption values of building stones
Authors: Qian Du , Yang Jianxun , Wang Jiapeng 
Published: July 2022

Abstract
The water that moves upward inside the stone is affected by capillary water absorption (CWA). This upward trend in historic and old buildings causes rapid destruction. In the simple regression model, the relationship between

CWA

with resistance (compressive strength CS) and its physical characteristics, such as (water absorption by weight (

W

a

), surface porosity (

n

), P-wave velocity (

V

p

), dry unit weight (

ρ

d

)) can be extracted. Several samples were collected from several rocks. To aim the prediction design, SVR and ANFIS models were proposed, in which two main ANFIS variables and the optimal quantity of SVR’s decisive variables were indicated via linking with a multi-verse optimizer (MVO) algorithm. So as to develop models, the gathered data records for estimating

CWA

from published articles were separated into two parts after being sorted randomly. Numerous stones containing igneous, metamorphic, and travertine were gathered from Turkey and Anatolia to use in experimental affairs. The outputs of hybrid models for predicting the

CWA

of building stones depict that both models have the justifiable capability in the prediction process, indicating the acceptable correlation between recorded and predicted values of

CWA
.

All in all, it is proved that the MVO-SVR has the best performance among the comprising approaches.
Simultaneous compression of multiple error-corrected short-read sets for faster data transmission and betterde novoassemblies
Authors: Tang Tao , Hutvagner Gyorgy , Wang Wenjian , Li Jinyan 
Published: July 2022

AbstractNext-Generation Sequencing has produced incredible amounts of short-reads sequence data for de novo genome assembly over the last decades. For efficient transmission of these huge datasets, high-performance compression algorithms have been intensively studied. As both the de novo assembly and error correction methods utilize the overlaps between reads data, a concern is that the will the sequencing errors bring up negative effects on genome assemblies also affect the compression of the NGS data. This work addresses two problems: how current error correction algorithms can enable the compression algorithms to make the sequence data much more compact, and whether the sequence-modified reads by the error-correction algorithms will lead to quality improvement for de novo contig assembly. As multiple sets of short reads are often produced by a single biomedical project in practice, we propose a graph-based method to reorder the files in the collection of multiple sets and then compress them simultaneously for a further compression improvement after error correction. We use examples to illustrate that accurate error correction algorithms can significantly reduce the number of mismatched nucleotides in the reference-free compression, hence can greatly improve the compression performance. Extensive test on practical collections of multiple short-read sets does confirm that the compression performance on the error-corrected data (with unchanged size) significantly outperforms that on the original data, and that the file reordering idea contributes furthermore. The error correction on the original reads has also resulted in quality improvements of the genome assemblies, sometimes remarkably. However, it is still an open question that how to combine appropriate error correction methods with an assembly algorithm so that the assembly performance can be always significantly improved.