Template-Type: ReDIF-Article 1.0 Author-Name: Jovanka Lukić Author-Workplace-Name: Institute of Molecular Genetics and Genetic Engineering, University of Belgrade (IMGGE), Belgrade, Serbia Author-Name: Norbert Vass Author-Workplace-Name: Institute of Aquaculture and Environmental Safety, Research Centre for Aquaculture and Fisheries, Hungarian University of Agriculture and Life Sciences, Szarvas, Hungary Author-Name: László Ardó Author-Workplace-Name: Institute of Aquaculture and Environmental Safety, Research Centre for Aquaculture and Fisheries, Hungarian University of Agriculture and Life Sciences, Szarvas, Hungary Author-Name: Jelena Stanivuk Author-Workplace-Name: Institute of Aquaculture and Environmental Safety, Research Centre for Aquaculture and Fisheries, Hungarian University of Agriculture and Life Sciences, Szarvas, Hungary Author-Name: Éva Lengyel-Kónya Author-Workplace-Name: Institute of Food Science and Technology, Food Science Research Group (MATE),Hungarian University of Agriculture and Life Sciences, Budapest, Hungary Author-Name: Nataša Golić Author-Workplace-Name: Institute of Molecular Genetics and Genetic Engineering, University of Belgrade (IMGGE), Belgrade, Serbia Author-Name: Zsuzsanna Jakabné Sándor Author-Workplace-Name: Institute of Aquaculture and Environmental Safety, Research Centre for Aquaculture and Fisheries, Hungarian University of Agriculture and Life Sciences, Szarvas, Hungary Author-Name: Uroš Ljubobratović Author-Workplace-Name: Institute of Aquaculture and Environmental Safety, Research Centre for Aquaculture and Fisheries, Hungarian University of Agriculture and Life Sciences, Szarvas, Hungary Title: Evaluation of weaning diets for sustainable indoor largemouth bass (Micropterus salmoides) larviculture Abstract: This research evaluated the suitability of commercially available larval feeds, Otohime B2 (OB2), Aller Infa (AI), and Aqua Start (AS), and one Experimental Feed (EF), for the weaning of largemouth bass (Micropterus salmoides), LMB. Feeds were presented with various ω-3 fatty acid levels/bioavailability (high in OB2 and AI), fat percentage (high in OB2 and AS), free amino acid and short peptide (FAA + SP) levels (high in OB2), and various soluble protein (SPR) levels (high in AS and EF). Fish were co-fed Artemia plus OB2 from the 19th to 22nd day post-hatching (DPH), then Artemia in addition to one of the four above diets for seven days, with complete Artemia removal on the 30th DPH. Fish were sampled on the 32nd DPH. Morphometry, digestive enzyme activities, hormonal status, skeleton, muscle development, and potentially pathogenic Flavobacterium spp. levels were estimated. Survival was high (96% or more) in all the weaning regimes. Weaning to OB2 was linked to a fast fish growth rate (14.29%/day), while both OB2 and AI supported the skeleton development. Weight gain correlated with total fat, ash levels, free amino acids, and short peptide levels in the diet. Larvae weaned to soluble protein-rich AS and EF showed the lowest fish weight gain and skeleton development, and lower growth of potentially pathogenic Flavobacterium spp. This research suggests that the weaning diets for largemouth bass should have a balanced protein content and quality while allowing for the inclusion of fewer marine ingredients. Keywords: fat, free amino acids, freshwater fish, intact proteins, marine ingredients, skeleton development Journal: Czech Journal of Animal Science Pages: 471-483 Volume: 69 Issue: 12 Year: 2024 DOI: 10.17221/129/2024-CJAS File-URL: http://cjas.agriculturejournals.cz/doi/10.17221/129/2024-CJAS.html File-Format: text/html X-File-Ref: http://agriculturejournals.cz/RePEc/caa/references/cjs-202412-0001.txt Handle: RePEc:caa:jnlcjs:v:69:y:2024:i:12:id:129-2024-CJAS Template-Type: ReDIF-Article 1.0 Author-Name: Eva Straková Author-Workplace-Name: Department of Animal Husbandry, Animal Nutrition and Biochemistry, Faculty of Veterinary Hygiene and Ecology, University of Veterinary Sciences Brno, Brno, Czech Republic Author-Name: Lucie Všetičková Author-Workplace-Name: Department of Zoology, Fisheries, Hydrobiology and Apiculture, Faculty of AgriSciences, Mendel University in Brno, Brno, Czech Republic Author-Name: Pavel Suchý Author-Workplace-Name: Department of Animal Husbandry, Animal Nutrition and Biochemistry, Faculty of Veterinary Hygiene and Ecology, University of Veterinary Sciences Brno, Brno, Czech Republic Author-Name: Martin Kutlvašr Author-Workplace-Name: Department of Animal Husbandry, Animal Nutrition and Biochemistry, Faculty of Veterinary Hygiene and Ecology, University of Veterinary Sciences Brno, Brno, Czech Republic Title: Effect of dehulled lupin seeds in feed mixture on muscle protein quality of broiler chickens Abstract: The aim of the study was to prepare and test the effect of diets with 50% and 100% replacement of soybean meal with dehulled seeds of white lupin (Lupinus albus) variety Zulika. Two hundred and forty ROSS 308 broiler chickens were divided into control group (C) and two experimental groups E50 (50% replacement of soybean meal with dehulled white lupin meal) and E100 (100% replacement of soybean meal with dehulled white lupin meal). The production parameters and the amino acid spectrum of breast and thigh muscles were evaluated up to 34 days of age. Final live weight of broiler chickens was not significantly affected by the substitution of soybean meal in starter, grower and finisher diets (C 2.3 ± 0.3 kg, E50 2.4 ± 0.3 kg, E100 2.4 ± 0.3 kg). Lupine meal-based diets positively influenced chicken health, which was reflected in a lower mortality rate in the experimental groups (E50 5.0 %, E100 2.5 %) compared to the control group (C 7.5 %). Differences in feed conversion were minimal (C 1.47 kg/kg, E50 1.48 kg/kg, E100 1.45 kg/kg). When evaluating the total amino acid content in the breast and thigh muscle of broiler chickens of the experimental groups (E50, E100), it can be noted that compared to the C group, the total contents of both essential and non-essential amino acids were significantly (P ≤ 0.05) lower in the dry matter of thigh muscle. Keywords: amino acids, muscle composition, ROSS 308, white lupine Zulika Journal: Czech Journal of Animal Science Pages: 484-492 Volume: 69 Issue: 12 Year: 2024 DOI: 10.17221/156/2024-CJAS File-URL: http://cjas.agriculturejournals.cz/doi/10.17221/156/2024-CJAS.html File-Format: text/html X-File-Ref: http://agriculturejournals.cz/RePEc/caa/references/cjs-202412-0002.txt Handle: RePEc:caa:jnlcjs:v:69:y:2024:i:12:id:156-2024-CJAS Template-Type: ReDIF-Article 1.0 Author-Name: Pei Mao Author-Workplace-Name: College of Animal Science and Technology, Henan University of Science and Technology,Luoyang, China Author-Name: Naizhi Hu Author-Workplace-Name: College of Animal Science and Technology, Henan University of Science and Technology,Luoyang, China Author-Name: Mengmeng Gao Author-Workplace-Name: College of Animal Science and Technology, Henan University of Science and Technology,Luoyang, China Author-Name: Lingping Zhao Author-Workplace-Name: College of Animal Science and Technology, Henan University of Science and Technology,Luoyang, China Author-Name: Chengsheng Song Author-Workplace-Name: Henan Spring Agriculture and Animal Husbandry Technology, Luoyang, China Author-Name: Wenfeng Ma Author-Workplace-Name: College of Animal Science and Technology, Henan University of Science and Technology,Luoyang, China Title: Effects of tryptophan supplementation on performance, intestinal morphology and protein abundance of tight junction protein and indoleamine 2, 3-dioxygenase in weaned pigs Abstract: This study determined the effect of tryptophan (Trp) supplementation on the protein abundance of intestinal tight junction and indoleamine 2, 3-dioxygenase (IDO) in weaned pigs. Ninety-six White × Landrace × Duroc piglets (5.31 ± 0.54 kg) were selected in a growth trial and the experiment lasted for 30 days. The basal diet based on corn and soybean contained Trp at 2.4 g/kg. The dietary treatments consisted of a basal diet or a basal diet + 500 mg/kg Trp. On the 31st day, 12 pigs (1 pig per pen) were randomly selected and slaughtered in order to collect samples for subsequent analysis. Dietary supplementation with Trp improved the villus height and protein abundance of Zonula occludens protein 1 (ZO-1) in the duodenum and the jejunum (P < 0.05), increased the protein abundance of Claudin-1 in the duodenum (P < 0.05) and IDO expression in the ileum (P < 0.05), and reduced the urea nitrogen concentration in the serum and the ZO-1 protein abundance of the ileum in weaned pigs (P < 0.05). Keywords: essential amino acid, intestinal protein expression, performance, piglets Journal: Czech Journal of Animal Science Pages: 493-501 Volume: 69 Issue: 12 Year: 2024 DOI: 10.17221/65/2024-CJAS File-URL: http://cjas.agriculturejournals.cz/doi/10.17221/65/2024-CJAS.html File-Format: text/html X-File-Ref: http://agriculturejournals.cz/RePEc/caa/references/cjs-202412-0003.txt Handle: RePEc:caa:jnlcjs:v:69:y:2024:i:12:id:65-2024-CJAS Template-Type: ReDIF-Article 1.0 Author-Name: Jan Saro Author-Workplace-Name: Department of Systems Engineering, Faculty of Economics and Management, Czech University of Life Sciences, Prague, Czech Republic Author-Name: Tomáš Šubrt Author-Workplace-Name: Department of Systems Engineering, Faculty of Economics and Management, Czech University of Life Sciences, Prague, Czech Republic Author-Name: Helena Brožová Author-Workplace-Name: Department of Systems Engineering, Faculty of Economics and Management, Czech University of Life Sciences, Prague, Czech Republic Author-Name: Robert Hlavatý Author-Workplace-Name: Department of Systems Engineering, Faculty of Economics and Management, Czech University of Life Sciences, Prague, Czech Republic Author-Name: Jan Rydval Author-Workplace-Name: Department of Systems Engineering, Faculty of Economics and Management, Czech University of Life Sciences, Prague, Czech Republic Author-Name: Jaromír Ducháček Author-Workplace-Name: Department of Animal Husbandry, Faculty of Agrobiology, Food, and Natural Resources, Czech University of Life Sciences Prague, Czech Republic Author-Name: Luděk Stádník Author-Workplace-Name: Department of Animal Husbandry, Faculty of Agrobiology, Food, and Natural Resources, Czech University of Life Sciences Prague, Czech Republic Title: A decision support system for herd health management for dairy farms Abstract: Industrial dairy farms boast highly advanced health monitoring and disease diagnosis systems. But without easily accessible, user-friendly web platforms for real-time decision-making, most dairy farmers cannot proactively manage herd health management and optimize treatments based on disease prediction and prevention. To bridge this gap, we have developed a web application of a Decision support system (DSS) for dairy health management based on machine learning. The system architecture combines a Flask backend with a React frontend and scalable cloud data storage and includes preprocessing, data integration, predictive modelling, and cost analysis. DSS forecasts herd diseases with an accuracy 6.66 mean absolute error and 2.35 median absolute deviation across predictions. Its core predictive capabilities rely on long short-term memory (LSTM) neural networks to forecast disease progression from historical records and on a linear trend model to project cuts in treatment costs. The system calculates medication dosages and cost per disease, streamlines supplier selection, and simulates various treatment scenarios, thereby identifying high-cost diseases with potential savings. In other words, this DSS application processes disease and treatment data by incorporating veterinary records into advanced data analytics and neural networks, thereby predicting diseases, optimizing disease prevention and treatment strategies, and reducing costs. As such, this DSS application provides dairy farmers with a tool for strategic decision-making, veterinary treatment planning, and cost-effective disease management towards improving animal welfare and increasing milk yield. Keywords: dairy cows, disease monitoring, neural networks, predictive analysis, treatment optimisation, web applications Journal: Czech Journal of Animal Science Pages: 502-515 Volume: 69 Issue: 12 Year: 2024 DOI: 10.17221/178/2024-CJAS File-URL: http://cjas.agriculturejournals.cz/doi/10.17221/178/2024-CJAS.html File-Format: text/html X-File-Ref: http://agriculturejournals.cz/RePEc/caa/references/cjs-202412-0004.txt Handle: RePEc:caa:jnlcjs:v:69:y:2024:i:12:id:178-2024-CJAS