bluuebunny/crossref_metadata_2025 huggingface dataset:
Preliminary Studies on the Performance and Feeding Behavior of Silver Pomfret (Pampus argenteus Euphrasen) Fingerlings Fed with Commercial Feed and Reared in Fiberglass Tanks
Authors:   Mariculture and Fisheries Department Food Resources Division Kuwait Institute for Scientific Research P.O. Box 1638, 22017 Salmiya, Kuwait, CRUZ E.M.
Published: October 2022

This preliminary study was conducted to determine the performance and feeding behavior of silver pomfret fingerlings (Pampus argenteus Euphrasen) fed with commercial feed and reared in fiberglass tanks. Silver pomfret fingerlings with an average weight of 15.2 g were stocked in six 1-ton fiberglass tanks (water volume = 700 l) at the rate of 20 fish per tank. The fish previously fed with moist feed made into paste, were gradually trained to feed on the test diet by replacing 25% of the paste with the test diet (Turbot feed, Ecostart 16 by Biomar of France) at weekly intervals. When the fish were already accustomed to the test diet, the feeding experiment started. Three tanks were assigned for each form (dry and moist) of feed treatment. Moist pellets were prepared by grinding the dry pellets, adding 25% water and repelletizing using a manual meat grinder. The experiment was carried out for 82 days. At the end of the study, significant differences between the two feed groups were observed. Fish fed with dry pellets were bigger (P < 0.03); had better daily growth rate (P < 0.03) and higher specific growth rate (P < 0.03); and gave better feed conversion ratio (P < 0.01) than the fish fed with moist pellets. However, survival rate of the fish fed with wet pellets was higher (P < 0.03) than that of the fish fed with dry pellets. Results of this preliminary study indicate that silver pomfret fingerlings accept dry pellets and perform better than those fed with moist pellets
Copper, Manganese and Zinc Requirements in the Diet of Shrimp Penaeus indicus
Authors:   Central Institute of Brackishwater Aquaculture 101-B Mahalingapuram Main Road CHENNAI- 600 034 India, ALI S. AHAMAD
Published: October 2022

Dietary requirements of copper, manganese, and zinc were investigated for the Indian white shrimp Penaeus indicus using purified diets. Feeding trials conducted on shrimp with an average weight of 70 mg for 45 days have shown that without supplemented copper, the diet produced higher growth (p > 0.05). However, the diet with 22.7 mg% copper gave the lowest feed conversion ratio (FCR) of 2.14 (P > 0.05) and higher survival rate (81.3%). Copper content in whole body of shrimp increased with dietary copper. Shrimp fed with diets having different levels of manganese grew better on the diet (control) that had 0.21 mg of manganese per 100 g. Higher levels of dietary manganese suppressed growth (P > 0.05). However, food conversion ratio (FCR) and survival rate improved when the diet contained 1.9 to 2.6 mg% manganese. In the case of zinc, the growth of shrimp improved with dietary zinc up to 23.6 mg% and declined thereafter (p > 0.05). However, the diet with 38.6 mg% zinc produced low FCR (p > 0.05). Zinc concentration in shrimp body increased with the dietary levels of the element, though the body ash showed a decreasing trend.
Sublethal Effect of Quinalphos on Selected Blood Parameters of Labeo rohita (Ham.) Fingerlings
Authors:   Aquatic Animal Health Division Central Institute of Freshwater Aquaculture Kausalyaganga, Bhubaneswar 751 002 India, DAS B.K. , MUKHERJEE S.C.
Published: October 2022

The blood parameters, total erythrocyte count (TEC), total leucocyte count (TLC), hemoglobin (Hb), blood glucose and serum protein, and size and surface area of erythrocytes of Labeo rohita exposed to two sublethal concentrations i.e 1.12 mg·l and 0.22 mg·l of quinalphos were studied. There was a decrease in the serum protein level (-20.42 to -53.03%) over control (p < 0.05) in both concentrations from at least day 15 to day 45. The blood glucose level and TLC were elevated compared to control (13.20 to 33.56% and 10.88 to 41.68%, respectively) in two sublethal concentrations from day 15 to day 45. The Hb% decreased from -23.79 to - 38.33% and TEC decreased from -2.87 to -11.32% in both sublethal concentrations.
Growth Response and Flesh Quality of Common Carp, Cyprinus carpio Fed with High Levels of Nondefatted Silkworm Pupae
Authors:   LIFE Project ANR Sector CARE Bangladesh GPO Box 226, Dhaka-1000 Bangladesh, NANDEESHA M.C.
Published: October 2022

Nondefatted silkworm pupae, a major by-product of the sericulture industry in India is rich in protein and fat. A growth trial was conducted over a period of 90 days to study the usefulness of pupae as a source of protein and energy in the diet of common carp, Cyprinus carpio. Results indicated that the pupae could be used to completely replace fishmeal and could be included up to 50% in the diet. There was no significant difference in the final weight gain, food conversion ratio, and protein efficiency ratio of fish fed with fishmeal based control diet and diets incorporated with 30, 40 or 50% pupae. However, the net protein retention was found to increase with increasing levels of pupae in the diet. Ribonucleic acid/deoxyribonucleic acid (RNA/DNA) ratio was highest in fish fed 50% pupae. Protein deposition in the carcass increased, while fat content decreased as pupae content in the diet increased. Protease enzyme activity was higher in pupae fed fish. Organoleptic evaluation of the fish indicated no significant difference between any of the treatments, either in the overall quality or individual attributes such as odor, texture, and flavor implying that pupae can be safely used up to 50% without hampering the growth and meat quality.
Population Dynamics of Johnius argentatus (Houttuyn) from the Northeastern Part of the Bay of Bengal, Bangladesh
Authors:   Institute of Marine Sciences University of Chittagong Chittagong-4331 Bangladesh, ZAFAR M.
Published: October 2022

Population parameters of Johnius argentatus from the trawl catches in the northeastern part of the Bay of Bengal, Bangladesh were estimated from length frequency data, by using Compleat ELEFAN computer programs. The asymptotic length (Lµ ) and growth constant (K) were estimated to be 46.1 cm (total length) and 0.86/year respectively. Based on these growth parameters, the total mortality coefficient (Z) during the study period was estimated to be 2.02. The estimated value for natural mortality (M) was 1.44 hence the fishing mortality coefficient (F) was 0.58. The estimated values for the exploitation rate (E) using the length converted catch curve was 0.29. Recruitment was continuous with two peaks per year. The estimated sizes of Johnius argentatus at 25, 50 and 75 percent probabilities of capture were 20.13, 22.13 and 24.13 cm respectively. The length-weight relationship was W = 0.0298TL2.69º .
Annual Yield of Tilapia (Oreochromis niloticus L.) in a Semi-recycling Integrated System in Kuwait
Authors:   Mariculture and Fisheries Department Kuwait Institute for Scientific Research PO Box 1638, 22017 Salmiya Kuwait, AL-AMEERI A.A.
Published: October 2022

A simple small-scale tilapia culture system suitable for integration in existing agricultural farms in Kuwait was studied. Nile tilapia (Oreochromis niloticus L.) fingerlings (2-7 g) were cultured sequentially in raceways inside a greenhouse. Well water flowed through the fish tanks during irrigation time and was recycled during non-irrigation time. The system was tested from January 1995 to August 1998. Results revealed that the system was capable of producing 2,340 kg fish per year and market size fish (>250 g) may be produced within 227 days. The partial water recycling system provided optimum environmental conditions for optimum fish growth. Problems identified during the trial were low DO of well water, power cut-off, leaking and bending of air supply pipes and very big size variation of fish at harvest. Measures to solve the problems are discussed in this paper.
Changes in the Volatile Compounds of Yellowtail (Seriola aureovitata) During Refrigerated Storage
Authors:   Department of Food Science and Technology Ocean University of Qingdao 5 Yushan Road Qingdao, Shandong Province China, XUE C.
Published: October 2022

A variety of significantly odorous compounds of yellowtail (Seriola aureovitata) developed during storage at 3ºC for 15 days. Trimethylamine (TMA) and dimethylamine (DMA) were the major volatile basic components. Volatile organic acids which include acetic acid, propionic acid, butyric acid, isobutyric acid and valeric acid were found and their contents increased during six days of storage, but the level of contents didn’t reach their odor threshold. Fat oxidation products of carbonyls and alkenals increased greatly during storage. The important compounds were hexanal, hexenal, octanal, octenal, 3,5- octadien-3-one, nonanal, and pent-1-en-3-ol, octen-3-ol. Sulphide compounds were identified after six days of storage.
The Stimulation of Cytokine-like Proteins in Tilapia (Oreochromis niloticus) Orally Treated with ß-1, 3-glucan
Authors:   Veterinary Medical Aquatic Animal Research Center Faculty of Veterinary Science Chulalongkorn University Bangkok 10330 Thailand, CHANSUE N.
Published: October 2022

The stimulation of tumor necrosis factor-a (TNF-a), interleukin-1ß (IL-1ß), interleukin-10 (IL-10) or interleukin-12 (IL-12)-like proteins using the enzyme-linked immunosorbent assay (ELISA) was investigated in tilapia (Oreochromis niloticus) orally treated with ß-1,3-glucan (ßG) for five days. The stimulation of each cytokine were determined in the plasma of tilapia orally treated with ßG. The TNF-a reactive protein was significantly stimulated in the plasma of tilapia treated with ßG. The levels of IL-1ß, IL-10 and IL-12 antibody-reactive proteins also increased in the plasma of fish treated with ßG. On the other hand, the phagocytic indices of macrophages in tilapia treated with ßG significantly increased. These results suggest that the immunostimulation in tilapia orally treated with ßG may relate with the production of cytokine-like proteins.
Efficacy of Benzalkonium Chloride as an Antibacterial and Immunostimulant in Macrobrachium rosenbergii (de Man)
Authors:   Fish Health Management Lab Central Institute Of Fisheries Education Seven Bungalows, Versova, Mumbai 400061, India, GOSWAMI M. , PRASAD K.P.
Published: October 2022

During the last decade many improvements have taken place in aquaculture, especially in prawn and shrimp farming. The shift from extensive to intensive and semi-intensive farming has brought about an increase in disease outbreaks, especially by bacteria. To control these diseases, antibiotics have been used indiscriminately. To avoid the use of antibiotics and the development of resistant strains of bacteria, we studied the efficacy of benzalkonium chloride (BKC), a quaternary ammonium compound as an antibacterial and immunostimulant in Macrobrachium rosenbergii (de Man). Efficacy was evaluated in vitro by minimum lethal concentration (MLC) and found to be 1.0 ppm for P. fluorescens and 1.5 ppm for E. tarda, V. alginolyticus, S. aureus and A. salmonicida. The 24 hr LD50 of BKC for two month old M. rosenbergii was 10.0 ppm. Its immunostimulant effect was evaluated by challenging BKC treated M rosenbergii (1.5 ppm BKC bath for 15 days) with P. fluorescens and V. alginolyticus. The NBT (nitroblue tetrazolium) assay showed that BKC treatment stimulated nonspecific immune response by the activation of granular cells. It also protected M. rosenbergii from disease when compared to untreated controls. A single treatment of BKC was effective for P. fluorescens for 49 hours and 46 hours for V. alginolyticus. Bath treatment at 2.0 ppm for one hour showed successful control of bacterial infection in M. rosenbergii previously infected with the bacteria. The results showed that BKC could be used as an effective antibacterial and immunostimulant in M. rosenbergii.
Turtle Incidences in Shrimp Trawl Nets During the 1997-1998 Shrimp Season in Bahrain Waters
Authors:   Bahrain Center for Studies and Research P.O. Box 496 Bahrain, ABDULQADER E.A.A.
Published: October 2022

In 1985, the Directorate of Fisheries (Bahrain) initiated a fishing log scheme to collect shrimp trawl fishery data. In the 1997-1998 season, fishermen were instructed to report on turtle catching incidences in standard fishing logs. The current work highlights the 1997-1998 fishing log information on turtle incidence. The percentage of boats reporting on turtle incidence ranged from 20.3 to 35.3% for different months. Fishermen use a single local name for all marine turtles found in Bahrain waters. This may indicate the abundance of a single species, which most likely is the green turtle. Turtles were reported in 12 out of the 20 grounds fished during the 1997-1998 season. The highest turtle incidence and fishing effort values were found in October 1997. Higher incidence rates were found in the Green Buoy, Aljarim, Tugailib, Mishtan, and Alshiekh fishing areas. The highest total seasonal incidence was found in Qumais, which was the second highest in terms of fishing effort. Lowest incidence rates were found in January 1998. This study is the first attempt to assess turtle incidence in shrimp fishery in the Arabian Gulf area.
Partial Budget Analysis of Nile Tilapia Oreochromis niloticus Cultured Within an Existing Agricultural Farm in Kuwait
Authors:   Mariculture and Fisheries Department Food Resources Division Kuwait Institute for Scientific Research P.O. Box 1638, Salmiya 22017 Kuwait, CRUZ E.M.
Published: October 2022

The purpose of this study is to determine the profitability of culturing tilapia at the Public Authority for Agriculture and Fisheries (PAAF) Experiment Station and in three theoretical scenarios using existing alfalfa farm conditions. The three theoretical scenarios were designed using existing farm resources and cheaper construction materials. Farm 1 and the PAAF Experimental Station had the same amounts of tilapia production. Tilapia production in Farm 2 is double the tilapia production in Farm 1, while Farm 3 had the same production as Farm 2 but it received 50% feed cost government subsidy. The results of this study show that profitability of culturing tilapia under existing alfalfa farm conditions is possible even at an annual production rate of 2,475 kg·farm. Higher profitability may be achieved by doubling the production of the farm to 4,950 kg·farm. With government subsidy on feed costs, additional income of about $7,574 per year per farm is possible if tilapia production is integrated into existing farms. Based on the results of this study, culturing tilapia could be a profitable means of increasing the productivity of an existing agricultural farm.
An Evaluation of a Six Day Cyprinid EmbryoLarval Test for Estimating Maximum Allowable Toxicant Concentration of Pesticide Under Tropical Conditions
Authors:   College of Fisheries, Kerala Agricultural University Panangad P.O.Cochin 682 506 India, ANNA MERCY T.V.
Published: October 2022

This study was designed to evaluate a six day embryo-larval test to arrive at a sensitive chronic effect threshold, (maximum allowable toxicant concentration or MATC) for pesticides. The embryo larval period of the Indian major carp Labeo rohita (Ham.) were exposed to sublethal levels of monocrotophos (an insecticide) during a 136 h exposure period. Among the end points observed, ‘hatching’ is found to be much less sensitive than ‘survival.’ Among the embryo life history phases exposed, the ‘free embryonic’ phase (22 to 96 h) is found to be as sensitive as the early apterolarval phase (96 to 136 h). A 96 h cyprinid embryo-free embryo toxicity test with “survival” as the end point is found to be a cost effective and rapid method for monitoring the chronic toxicity of pesticides to fishes under tropical conditions.
Effect of Ion-Exchanging Agent, Zeolite on Removal of Copper in Water and Improvement of Growth in Oreochromis mossambicus (Peters)
Authors:   Department of Zoology V.O.Chidambaram College Tuticorin - 628 008 TN, India, JAMES R.
Published: October 2022

The effect of different doses of zeolite (0, 0.5, 2, 4 and 8 g zeolite l-1) on reduction of copper toxicity in water and on freshwater fish, Oreochromis mossambicus was studied for 180 days. The 96 h LC50 value of copper for O. mossambicus was 4.27 mg·l-1 . RNA:DNA ratio increased with exposure period in control fish that indicated the growth of fish during the experiment. However, in copper exposed fish the ratio did not show drastic variation when compared to control fish. In zeolite treated fish, RNA:DNA ratio increased like in the control fish. Among the treatments, 2 g zeolite l-1 added treatment showed better performance than the other treatments. When different levels of zeolite were added to copper media, the metal content was completely removed from the medium within a period of 150 days in 0.5 g zeolite l-1 added treatment, while in other treatments (2, 4 and 8 zeolite l-1) it took 120 days. The copper level in Cu treatment was 0.830 mg·l-1 even at the time of the termination of the experiment. The removal of copper from the test media and transfer to sediment were more pronounced in 2 g zeolite l-1 added treatment than in other treatments. A similar trend was also observed in the elimination of accumulated copper from the body tissues. Metal removal from water and body tissues and subsequent improvement of RNA:DNA ratio and protein in fish were maximum in 2 g zeolite l-1 added treatment than in other treatments (0.5, 4 and 8 g zeolite l-1), hence it is considered as an optimum dose.
Characteristics, Pathogenicity and Antibiotic Sensitivity of Bacterial Isolates from White Spot Diseased Shrimp
Authors:   Department of Zoology Andhra University Visakhapatnam - 530 003 India, JAYASREE L.
Published: October 2022

A bacteriological study was undertaken on white spot diseased shrimp collected from extensive, modified-extensive and semi-intensive ponds located at Visakhapatnam and East Godavari districts of North Coastal Andhra Pradesh. The diseased shrimp exhibited white spots and red discoloration of the body. Four species of bacteria, V. alginolyticus, V. parahaemolyticus, V. anguillarum and Pseudomonas aeruginosa were isolated from the hemolymph of the diseased shrimp. V. alginolyticus was found to be the most dominant and virulent species. All the bacterial isolates showed sensitivity towards oxytetracycline which is a commonly used antibiotic in culture ponds.
Effect of Salinity on the Toxicity of Mercury in Mangrove Clam, Polymesoda erosa (Lightfoot 1786)
Authors:   Dhempe College of Arts and Science Miramar, Panaji 403001 Goa, India, MODASSIR Y.
Published: October 2022

The present study reports the effect of salinity on the toxicity of mercury in mangrove clam Polymesoda erosa. The toxic effect was found to be influenced by different salinities and mortality increased with an increase in salinity. The 96 hour LC50 were 0.58, 0.35 and 0.26 ppm Hg in 10, 20 and 30 ppt salinity, respectively at room temperature. The LT50 values also suggested high mortality with increasing Hg concentration. Accumulation of Hg in the tissue of the clam was greater in the gills than in any other parts. The amount of Hg in the tissues was dependent on the concentration in the medium and length of exposure. This behavior of Hg was related to affinity to certain body organs and changing rate of adsorption after methylation and chemical speciation. Accumulation was maximum in higher salinity (30 ppt).
Bacteriological Studies on Fishes Affected with Epizootic Ulcerative Syndrome
Authors:   Fish Pathology Laboratory Centre for Life Sciences University of North Bengal West Bengal-734430 India, SAHA D. , PAL J.
Published: October 2022

Epizootic ulcerative syndrome is one of the most well known fish diseases that has caused disastrous effects throughout India after its first outbreak in 1988. Since then recurrences in varying intensities are reported every year. Bacteriological examination of the ulcerated area of affected C. punctatus, Puntius sp. and Mystus sp. revealed the presence of 16 strains of bacteria belonging to the genus Pseudomonas, Aeromonas, Micrococcus, Bacillus, Vibrio and Moraxella among which Pseudomonas and Aeromonas were the most common. Pathogenicity tests with all the isolates showed that only six strains belonging to the genus Aeromonas and Pseudomonas were pathogenic while the rest were nonpathogenic. The distinct inconsistency in the type of pathogenic bacteria isolated from the three fish species suggests that these are opportunistic pathogens that have invaded the fish secondarily.
Preliminary Observations on the Effects of Lime and Common Salt as Prophylactics and Therapeutics Against Epizootic Ulcerative Syndrome in Fish Culture Ponds
Authors:   Institute for Fisheries and Marine Biology University of Bergen High Technology Centre Norway, SANAULLAH M.
Published: October 2022

To control epizootic ulcerative syndrome (EUS) in fish, pond treatment using quick lime (CaO) combined with common salt (NaC1) was tested in seven experimental ponds at Gazipur and Faridpur, Bangladesh. Basic water quality parameters were monitored before and during treatments. Therapeutic treatments using lime (CaO) either at 0.005 or 0.01 ppm or lime plus common salt at 0.005 ppm each gave unsatisfactory or delayed results. Simultaneous treatments using both chemicals at 0.01 ppm each improved water quality parameters (pH, acidity, alkalinity, hardness and chloride), and led to healing of lesions of affected fishes after fifteen days of application. The same dosages used as prophylactics were applied as field trials just before the predicted outbreak and no fish with lesion was observed. Follow up field trials in two subsequent seasons have also indicated the effectiveness of the present doses and treatments. These techniques are disseminated as adaptive measures through government extension agents and are being practiced in semi-intensive fish culture ponds in Bangladesh to combat EUS.
Chilling Fresh Fish in Dry and Wet Ice
Authors:   Department of Fish Processing Technology Fisheries College and Research Institute Tamil Nadu Veterinary and Animal Sciences University Thoothukkudi, 628 008 India, SASI M.
Published: October 2022

The use of dry ice combined with water ice for effective chilling of sardines Sardinella gibbosa was standardized by examining their sensorial, microbiological and biochemical qualities. Sardines stored in 50% dry ice alone had a longer shelf life of 10 days, when compared to that stored at 30 and 40% dry ice. The TPC, TMA-N, and TVB-N values were well within the level of acceptability up to 10 days. Sardines stored in 50% water ice along with the dry ice at the rate of 20 and 30% were found to be sensorially acceptable up to 13 days, and only 5 days with 10% dry ice. The TPC, TMA-N and TVB-N values of the sardines in the combination package with 20% dry ice and 50% water ice were also within the acceptable level.
Effects of Tilapia Stocking Densities on Fish Growth and Water Quality in Tanks
Authors:   Fish Culture Project Natural Resources and Environment Research Institute King Abdulaziz City for Science and Technology P. O. Box 6086, Riyadh 11442, Saudi Arabia, AL-HARBI A.H. , SIDDIQUI A.Q.
Published: October 2022

The effects of feed input and stocking density (1, 5, 10 and 15 kg.m-3 ) of hybrid tilapia (Oreochromis niloticus x O. aureus) on growth and water quality were investigated. Each density treatment was replicated three times, and stocking densities were restored by removing fish at 14-day intervals. Fish were fed a 34% protein tilapia feed to satiation within 30 min twice daily. Both feeding rates (% body weight.day-1) and percentage increase in biomass decreased significantly with increasing stocking density, but feed conversion efficiency was not significantly affected. Ammonia nitrogen, nitrite nitrogen and total phosphorus increased while DO decreased as the stocking density of fish and feed input increased. There were no significant effects of stocking densities and feed input either on nitrate nitrogen concentrations or pH of the water.
Deskripsi Pemahaman Konsep Siswa dalam Menyelesaikan Soal-soal Larutan Elektrolit dan Non-Elektrolit Berbasis Representasi Makroskopik, Submikroskopik dan Simbolik
Authors: Ishak Candrawati , Musa Weny J.A , Kunusa Wiwin Rewini , Isa Ishak , Rumape Opir
Published: October 2022

Penelitian ini bertujuan untuk mengetahui pemahaman konsep siswa dalam menyelesaikan soal-soal larutan elektrolit dan non elektrolit di SMA Negeri I Biluhu. Jenis penelitian yang dilakukan adalah penelitian deskriptif. Adapun instrumen yang digunakan adalah soal pilihan ganda pada materi larutan elektrolit dan nonelektrolit berbasis makroskopik, submikroskopik dan simbolik. Subjek penelitian yang digunakan adalah kelas X IPA SMA Negeri I Biluhu dengan jumlah sampel sebanyak 46 siswa. Hasil yang diperoleh pada penelitian menunjukkan bahwa rata-rata pemahaman konsep secara keseluruhan yaitu 53,44% dengan kategori “Rendah”. Kemudian pada tingkat pemahaman makroskopik dengan nilai presentasi 64,13% dengan kategori “sedang”, selanjutnya pada tingkat pemahaman submikroskopik dengan nilai presentasi 38,59% dengan kategori “sangat rendah”. Sedangkan pada tingkat pemahaman simbolik nilai presentasi 57,61% dengan kategori “rendah”. Dengan demikian pemahaman konsep siswa dalam menyelesaikan soal-soal larutan elektrolit dan non elektrolit berbasis representasi makroskopik, submikroskopik dan simbolik berada pada kategori rendah.
Sistem identifikasi kendaraan dengan teknologi RFID UHF berbasis Internet of Things
Authors: Chanafi Muhammad Faiz Dzaki , Hiron Nurul , Nursuwars Firmansyah Maulana Sugiartana , Rahayu Andri Ulus
Published: October 2022

Penggunaan radio frequency identification (RFID) dalam berbagai kebutuhan dapat memberikan kemudahan akses dalam proses identifikasi. Salah satu implementasi yang dapat dilakukan adalah dalam proses identifikasi kendaraan saat memasuki suatu area. Penelitian ini bertujuan untuk menerapkan teknologi RFID pada proses identifikasi kendaraan yang akan masuk maupun keluar kampus berbasis Internet of Things (IoT). Sistem yang digunakan yaitu RFID ultra high frequency (UHF) dengan interface RS232 untuk komunikasi serial di Arduino Uno, serta NodeMCU ESP8266 sebagai media penghubung ke server website secara online. Sistem akan memberikan akses terhadap kartu tag yang memiliki ID unik, kemudian data akan dikirim oleh NodeMCU ESP8266 melalui jaringan internet, lalu ditampilkan di website dan disimpan ke database. Berdasarkan hasil pengujian, diperoleh jarak baca dengan RFID reader membentuk sudut 90° dan tiang diarahkan membentuk sudut 25° adalah sekitar 8 meter. Kemudian sistem juga diuji dengan skenario dua jalur untuk tidak terjadinya respon ganda pada kartu tag. Hasilnya didapat dengan penempatan RFID reader membentuk sudut 25° dan arah tiang digeser sejauh 25°, jarak baca ke kartu sejauh sekitar 5 meter sehingga lebih efektif dan tidak terjadinya respon ganda.
Analisis performansi high availability cluster server menggunakan heartbeat pada private cloud
Authors: Iryani Nanda , Ayatri Kholifah Dyah , Wahyuningrum Reni Dyah
Published: October 2022

Pada era new normal terjadinya peningkatan penggunaan internet, sehingga  membuat web server akan terus menerus bekerja tanpa berhenti. Semakin tinggi sebuah permintaan pada web server maka beban web server akan semakin bertambah dan server akan mengalami down. Solusinya adalah dengan adanya server yang mempunyai kehandalan dan mampu mengatasi masalahnya sendiri. Jika menggunakan sebuah server saja tidak dapat disebut handal dikarenakan jika server tersebut mati maka sistem akan mati dan tidak dapat melayani sebuah permintaan tanpa adanya server cadangan. Solusinya adalah dengan menerapkan high availability dengan metode heartbeat untuk memastikan failover clustering disaat server utama mati maka akan digantikan dengan server cadangan. Heartbeat dibangun dalam beberapa web server yang terpasang pada private cloud. Private cloud digunakan karena memiliki banyak manfaat seperti kendali penuh dapat menyesuaikan penggunaan sumber daya dengan kebutuhan server dengan lebih baik. Faktor penelitian berdasarkan dari nilai downtime dan nilai availability yang menjadikan sebuah parameter server cluster dapat berjalan dengan baik. Pengujian dilakukan melalui 5 variasi jumlah koneksi, yaitu 200 koneksi, 400 koneksi, 600 koneksi, 800 koneksi, dan 1000 koneksi dengan laju 100 permintaan/detik. Hasil pengujian menunjukkan nilai rata-rata throughput semua variasi sebesar 5,254 Mbit/s dengan tertinggi pada 600 koneksi yaitu 6,233 Mbit/s. Delay menunjukkan kategori Sangat Baik berdasarkan standarisasi TIPHON yaitu kurang dari 150 ms. Presentasi packet loss juga menunjukkan kategori Sangat Baik hingga 1000 koneksi semua paket diloloskan. Hasil pengujian menunjukkan bahwa High Availability Cluster Server menggunakan Heartbeat pada private cloud menunjukan hasil yang sangat baik dimana sistem masih optimal hingga beban 1000 koneksi.
Forward and inverse kinematics modeling of 3-DoF AX-12A robotic manipulator
Authors: Widyacandra Ayu , Al Tahtawi Adnan Rafi , Martin Martin
Published: October 2022

The presence of robots that can assist humans with heavy or dangerous work makes the need for robots more pressing at the moment. One type of robot needed is a robot arm, which is widely used in the manufacturing industry, such as in the assembly process and pick and place. The types of robotic arms used vary both in terms of configuration and the number of degrees of freedom. However, with different types of robotic arms, different models of movement are used. Therefore, research related to the modeling of the robotic arm continues to be carried out to obtain the appropriate movement of the robotic arm. One of the methods used as a first step in designing a robotic arm movement model is kinematics analysis. Kinematics analysis aims to analyze the movement of the robot arm without knowing what force causes the movement. This paper aims to produce an ideal movement model for the AX-12A 3-DoF robotic arm using forward kinematic and inverse kinematic analysis using two methods, the Denavit-Haterberg method and the geometric approach method. The difference from other papers is that this paper makes the kinematics model using Robotic, Vision, and Control (RVC) tools based on the Peter I. Corke model on MATLAB software first before implementing it on hardware. The results show that the error percentage for the forward kinematic model is 1.04% and the inverse kinematic is 0.76%, which means the two models achieved the target that the model’s error maximum must be less than 2%.
Sistem monitoring denyut jantung berbasis IoT menggunakan protokol XMPP
Authors: Salsabila Dany , Hanuranto Ahmad Tri , Irawan Arif
Published: October 2022

Kardiovaskular merupakan suatu penyakit gangguan pada jantung. Penyakit Kardiovaskular dapat didiagnosis menggunakan alat yang bernama Elektrokardiogram (EKG). Dengan menggunakan teknologi revolusi Internet of Things (IoT), tujuan penelitian ini adalah merancang dan menguji sebuah sistem monitoring denyut jantung berbasis IoT menggunakan protokol Extensible Messaging and Presence Protocol (XMPP). Sistem dirancang dengan mengintegrasikan sebuah modul AD8232 yang dihubungkan dengan server XMPP melalui mikrokomputer Raspberry Pi dan akan dihubungkan dengan antarmuka website. Antarmuka ini dapat menampilkan hasil deteksi beat per minute (BPM), waktu pengiriman, dan waktu terima pesan XMPP berdasarkan hasil deteksi sensor AD8232. Pada penelitian ini dilakukan pengukuran performansi berdasarkan Quality Of Service (QoS) menggunakan Wireshark. Sedangkan untuk nilai BPM digunakan untuk mengukur tingkat akurasi sensor AD8232 yang dibandingan dengan Oximeter sebagai referensi. Hasil implementasi dan pengukuran pada penelitian ini diperoleh delay 342,857 ms dan troughput 0,0009257 bps yang termasuk dalam kategori baik dalam sistem IoT. Hasil akurasi perbandingan data BPM antara sensor AD8232 dan Oximeter 59,918% dengan biaya implementasi yang murah namun dapat diakses di banyak perangkat dengan berbagai macam bentuk sistem monitor.
PENTINGNYA KETERAMPILAN MANAJEMEN USAHA PADA HOME INDUSTRY TAPE SINGKONG DI KECAMATAN PAKUSARI KABUPATEN JEMBER
Authors: Yulisetiarini Diah , Prasetyaningtyas Susanti , Sudarsih Sudarsih , Irawan Bambang
Published: October 2022

The business of making cassava tape has a positive impact, both on entrepreneurs and the local community. For entrepreneurs, the economic impact of this business is to increase their income. In addition, the operation of a labor-intensive cassava tape business will help absorb labor for the local community. Work productivity of employees is very important so the skills of employees in the home industry of cassava tape need to be continuously improved. The purpose of this study was to determine how much influence work skills have on the productivity of making cassava tape in the home industry in Pakusari District, Jember Regency. This research method uses quantitative description. The results of this study indicate that the work skills of employees have a significant positive effect on the productivity of making cassava tape in the home industry in Pakusari District, Jember Regency.
El papel de las educadoras en el desarrollo del vocabulario receptivo de preescolares a través de actividades musicales
Authors: Galicia Moyeda Iris Xóchitl , Sánchez Velasco Alejandra , Pavón Figueroa Susana , Peña Flores Teresa
Published: October 2022

Considerando las estrecha relación entre habilidades musicales y habilidades lingüísticas en niños pequeños, se elaboró un programa de actividades musicales destinado a implementarse en el Jardín de Niños. El objetivo particular consistió en evaluar el nivel de vocabulario receptivo en niños de primer grado de educación preescolar como resultado de la exposición a dos tipos de actividades musicales impartidas por diferentes profesionales. Específicamente se comparó el nivel del vocabulario en tres condiciones: a) Actividades de Ritmos, Cantos y Juegos (RCJ) contempladas en el currículo del jardín de niños e impartidas por profesores de música asignados a los jardines de niños participantes; b) Actividades del Programa Educativo Musical Promotor del Lenguaje (Pemprol) impartidas por pasantes de educadoras, y c) Actividades normales del jardín sin ninguna actividad musical ni de RCJ.Se encontró que los niños que recibieron actividades musicales, en las que se enfatizó la repetición de patrones rítmicos, recuerdo de secuencias de sonidos, y la representación gráfica de timbres, ritmos y líneas melódicas, incrementan su vocabulario receptivo en mayor medida que los niños que tuvieron actividades musicales proporcionada por profesores de música, pero sin esas características y que los niños que no fueron expuestos a ninguna actividad musical.
La formación profesional en la universidad de hoy: de la educación a la autoeducación
Authors: Nieves Achón Zaida , Otero Ramos Idania , Molerio Pérez Osana
Published: October 2022

El trabajo presenta un análisis teórico que convoca a repensar la práctica educativa en la universidad de hoy, atendiendo a las demandas y retos de educar para la autonomía. Se asume una perspectiva de la educación desarrolladora, que parte de la contextualización del aprendizaje en la plataforma del enfoque histórico cultural de S. L. Vigostki y se sitúa en una concepción holística que facilita la comprensión de la educación como sistema de ayudas pedagógicas, que desde una didáctica de la ínter subjetividad, estimule la formación y el desarrollo de la subjetividad del alumno con una activa participación de éste como sujeto autorregulado y autónomo, esto es como agente activo, interactivo e intencional, de manera que la educación trascienda hacia la autoeducación. Se defiende la idea de que la autoeducación debe ser objeto de la educación y por tanto su estimulación no escapa de las propias leyes de la didáctica. De esta suerte, la conocida fórmula de enseñar para la autonomía se convierte en educar a través de la autoeducación.
Regulatory Noncompliance Posing Threat of Retailing Nonconforming Food Products
Authors: Kozubskaya Valentina I. , Mazhaeva Tatyana V. , Sinitsyna Svetlana V. , Sheluntsova Nataliya G. , Panov Vladimir G.
Published: October 2022

Background: Ensuring safety of food products, reducing the risk of damages to consumers, and optimizing the activities of supervisory authorities are the priorities of the Russian government policy. Inspection aimed at eliminating risk factors is one of the ways of achieving these goals. The attention of oversight bodies and food retailers shall be focused on compliance with mandatory requirements enabling prevention of food safety hazards and related health risks in consumers. Objective: To assess the impact of identified violations of legal requirements on the quality and safety of food products and to establish the efficiency of managerial decisions made to prevent retailing of nonconforming foods. Materials and methods: We analyzed results of laboratory testing of foodstuffs sampled in 5,923 grocery stores and the number of cases of regulatory noncompliance in them indicating the absent or improper systemic approach to safety management based on HACCP principles, all provided by the Sverdlovsk Regional Office of the Federal Service for Surveillance on Consumer Rights Protection and Human Wellbeing (Rospotrebnadzor) for the years 2016–2020. Results: We established a strong relationship between nonconforming food products sold and noncompliance with the Technical Regulation of the Customs Union 021/2011 on Food Safety. We revealed processes posing a potential threat of selling nonconforming products and thus requiring special control. The highest probability of encountering such products was detected in groceries selling a wide range of foodstuffs and serving more than 50 people per store. Conclusion: Our findings indicate the importance of considering the identified hazards caused by noncompliance with mandatory requirements and posing threat of retailing nonconforming food products during inspections. Ensuring a comprehensive approach and appropriate preventive measures within food quality and safety management by retailers and Rospotrebnadzor will encourage the former to reduce the category of risks of damage, to optimize the use of resources, to raise the efficiency of their activities, and to decrease the number of unsafe products sold.
Signs of Phenotypic Changes in Children Constantly Exposed to Elevated
Environmental Levels of Chemical Pollutants in the City of Nizhny Tagil
Authors: Mazhaeva Tatyana V. , Dubenko Svetlana E. , Shtin Tatyana N. , Yarushin Sergey V. , Chebotarkova Svetlana A.
Published: October 2022

Background: Environmental epigenetics plays an important role in developing a phenotype of diseases.
Objective: To identify signs of phenotypic changes in children constantly exposed to high environmental levels of chemical pollutants in the city of Nizhny Tagil.
Materials and methods: The study was conducted in a specialized kindergarten for children suffering from different allergic diseases in the city of Nizhny Tagil. To detect phenotypic signs of environmental exposure, we used data on clinical diagnoses, medical history, and pediatric physical examination, as well as the results of a parent survey on allergies. We then measured blood and urinary levels of some metals and total IgE as a marker of lead poisoning in children.
Results: According to clinical diagnoses, food intolerance was noted in 97.7 % of the children, 91.2 % suffered from allergic dermatitis, and almost 20 % were allergic to house dust. Phenotypic manifestations of food intolerance testified to the predominance of its skin phenotype. Every third child had symptoms of psychological disorders. The questionnaire-based survey revealed a positive allergic status in 83.1 % of the parents, mainly with skin manifestations. High blood levels of lead, nickel, cobalt, and cadmium exceeding the safe level by 23.6–240 % were observed in the study population. The syndrome of chronic xenogeneic intoxication was established in 57.3 % of cases and the syndrome of sensitization to low doses of chemicals – in 41.6 % of them. Almost 25 % of the children were underweight, which was associated with their blood cadmium
levels.
Conclusions: Our findings confirm the few literature data on such health effects of heavy metals in children as asthma, eczema and food allergies, as well as low body weight and height. Studies of the signs of phenotypic changes in the group of children suffering from allergies and exposed to environmental hazards are most likely to indicate the adverse impact of heavy metals on the immune system, manifestations of epigenetic mechanisms forming the allergy phenotype, which can potentially lead to transgenerational inheritance.
Estimation of carbon emissions of agricultural machinery use in India
Authors: Guru Prabhat Kumar , Shrivastava Atul Kumar , Tiwari Priyanka , Khandai Suryakant , Chandel Narendra Singh
Published: October 2022

India is currently one of the world’s fastest-growing economies. As a largely agricultural country, the correct measurement of carbon emission associated with different agricultural machinery is highly important. Quantification of the carbon footprint of agricultural machinery is important for the identification of more sustainable and environmentally friendly practices. Information on input energy (fuel energy) used by different farm machinery in India was collected and converted into carbon equivalent in kg CE ha-1 and kg CO2e ha”1. The carbon equivalent for field preparation, sowing and transplanting, sprayer, harvesting, straw management, and other machinery ranges from 4.64 – 21.60, 5.5 – 16.57, 0.85-3.23, 2.02-17.22, 8.91-26.19 kg CE ha-1 and 15.38 – 71.60, 11.39 – 54.94, 2.81 – 10.72, 6.70 – 57.08, and 25.13 – 86.83 kg CO2e ha”1. In order to use low-emission machinery and to calculate the carbon footprints of crop production, the equivalent carbon emission factors of each farm machine and implement were determined. Improved and accurate equipment with optimal and minimal tillage, conservation agriculture, resource conservation technology, and straw management equipment can all help minimise the carbon footprints of farm machinery.
Identification of resistant rice genotype against leaf folder, Cnaphalocrocis medinalis Guenee
Authors: Thorat SS , Gangwar RK , Parmar MB , Patel SG , Prajapati DB , Kacha DJ
Published: October 2022

An experiment was conducted to identify efficient resistance source against leaf folder through field screening of rice genotypes during kharif 2016 and 2017 at Main Rice Research Station, AAU, Nawagam, Gujarat, India. Total of 18 and 16 rice genotypes were screened during kharif 2016 and 2017, following standard evaluation system (SES). The screening results showed that the minimum per cent damaged leaves were recorded in resistance check, W-1263 (13.88), whereas tested materials like CN-1231-11-7 (18.02), and MP-209 (18.64) were on par with resistant check followed by NWGR-13017 (23.64) during kharif 2016. Likewise, during 2017 screening results showed the NWGR-13017 rice genotype per cent damage score (15.75) was parallel with resistant check W-1263 (15.10). Hence, it is suggested that the genotype NWGR-13017 has exhibited promising resistance reaction against leaf folder in our experiment. Further to validate our results, genotype NWGR-13017 was tested in multiple location in India through AICRIP trial in 2017 and results showed that this genotype found promising in 7 out of 11 locations tested during kharif 2017. Therefore, this rice genotype NWGR-13017 (SK-20 x IET-19297) could serve as a viable source for development of resistant varieties against leaf folder.
SPAD Chlorophyll meter based nitrogen management strategy in direct seeded rice
Authors: Karthik Rayapati , Ghosh Mainak , Chowdhury Arnab Roy , Dhaker Devilal , . Bhojendra
Published: October 2022

To identify the SPAD chlorophyll meter based nitrogen management strategy in wet direct seeded rice, a field experiment was conducted at Agriculture Research Farm, Bihar Agricultural University, Sabour, Bhagalpur, Bihar, India during Kharif 2018. The experiment was conducted in split plot design which consisted of three rice cultivars as main plot treatments: Sabour Ardhjal, Shushk Samrat & Shabhagi Dhan and four N management practices as sub-plot treatments: No N (control), Fixed time N management (FTNM), Real time N management (RTNM) and Adjustable dose of N management (ADNM). Results revealed that among the cultivars, the maximum grain yield was obtained in Shushk Samrat (3956 kg/ha) which was statistically at par with Shabhagi Dhan (3752 kg/ha) whereas lowest grain yield was obtained in Sabour Ardhjal (3213 kg/ha). Among the N management practices, highest grain yield (4177 kg/ha) was recorded in ADNM which was at par with grain yield of FTNM (4134 kg/ha). Maximum gross (Rs. 79,957 ha-1) and net (Rs. 48,681 ha-1), B: C ratio (1.56) were obtained in ADNM. So, higher yields as well as sustainability of ecosystems can be achieved by practicing ADNM in direct seeded rice.
Simulation of rice yield with resource conserving technologies for early, mid and end centuries under changing climatic conditions using DSSAT model
Authors: Shahid Mohammad , Goud Bandaru Raghavendra , Nayak Amaresh Kumar , Tripathi Rahul , Mohanty Sangita , Bhaduri Debarati , Chatterjee Dibyendu , Debnath Manish , Chatterjee Sumanta , S Vijayakumar , Dash Pradeep Kumar , Pathak Himanshu
Published: October 2022

Rice (Oryza sativa L.) is one of the major crop of India and the lifeline of the Eastern states. The challenges however are to produce more food for the increasing population by utilizing limited resources and maintain it under climate change conditions. This can be achieved by devising appropriate agro-techniques. We calibrated and evaluated CERES-Rice model of Decision Support System for Agro-Technology Transfer (DSSAT) for different resource conserving technologies (RCTs) to assess their effects on yield of transplanted rice under projected climate change scenarios. Yields were projected for 2030, 2050 and 2070 using data downloaded from MarkSim® DSSAT weather file generator for RCP 4.5 climate change scenario. The simulated result indicated that the productivity of transplanted rice under resource conserving technologies is likely to increase by 11.6-14.9% in 2030, 18.6-22.3% in 2050 and 17.6-20.2% in 2070 compared to the present yield levels (2015) with current management practices. Yield can further be enhanced through adoption of appropriate resource conservation technologies (RCTs). The DSSAT model predicted the effects of RCTs in transplanted rice very well and can be a useful tool for evaluating the effects of climate change on rice under these managements.