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260 results for “Body Weight”
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Research ArticleOpen accessIn the abstractGrowth Dynamics and Meat Productivity of the Kushum Horse BreedOtebayev Zhassulan, Akimbekov Amin, Alpeisov Shokhan et al.In the conditions of the south-eastern zone of the Almaty region under herd management conditions without altering the existing husbandry practices the meat productivity of Kushum breed of horses is increased in the Bayserke Agro Farm due to breeding of highly productive stallions and mares of the Kushum breed. The primary objective of this study is to assess the productivity, … …American Journal of Animal and Veterinary Sciences, Vol. 20, Issue 3 · 4 Dec 2025 · 2,743 accessesView PDFCite
Research ArticleOpen accessIn the abstractBreeding Progress in Mugalzhar Horses: The Irtysh Type as a Model for Meat Production EfficiencyAkimbekov Amin, Uskenov Rashit, Nurgulsim Kaster et al.The Mugalzhar horse breed holds significant value for meat production in Kazakhstan. Developed through targeted selection, the new Irtysh stud type demonstrates outstanding adaptation and productivity, with stallions reaching an average live weight of 486.1 kg and mares 463.4 kg, an increase of up to 73 kg compared to the original group. The coefficient of variation for live weight and … …American Journal of Animal and Veterinary Sciences, Vol. 20, Issue 3 · 29 Nov 2025 · 2,613 accessesView PDFCite
Research ArticleOpen accessIn the abstractThe Effect of the Saccharomyces Boulardii Supplement in Combined Feed on the Health, Growth, and Fecal Microbiota of Growing CalvesDulat Zhalelov, Serkan Ozkaya, Mehmet Gündoğdu et al.The aim of this study was to study the effect of a specific strain of yeast, Saccharomyces cerevisiae boulardii T8-3C (SCB), on the growth, health, and bacterial profile of calves' feces. A total of 12 animals were included in the experiment on a commercial calf farm for a total of 90 days. The calves were fed hay and alfalfa twice … …OnLine Journal of Biological Sciences, Vol. 25, Issue 3 · 27 Nov 2025 · 2,309 accessesView PDFCite
Research ArticleOpen accessIn the abstractPhenotypic Characterisation of the Bapedi SheepKgothatso Masethe, Thinawanga Joseph Mugwabana, Tlou Caswell Chokoe et al.Bapedi sheep are at risk of extinction, which necessitates thorough documentation to inform and drive effective conservation efforts. We aimed to characterize Bapedi Sheep phenotypic characteristics using 231 Bapedi sheep (≥1 year of age) from Limpopo and Gauteng Provinces. The Bapedi Sheep were grazed on natural pasture and the data was collected during the autumn season. Qualitative and quantitative phenotypic … …American Journal of Animal and Veterinary Sciences, Vol. 20, Issue 3 · 3 Sep 2025 · 5,909 accessesView PDFCite
Research ArticleOpen accessIn the abstractDetermination of the Probiotic Potential and Metabolic Function of Lactobacillus Strains for Healthy Calf RearingRaya Myktybayeva, Serkan Özkaya, Elif Rabia Şanlı et al.This research investigstes the impact of probiotic supplementation on the growth performance, health status, and physiological traits in Holstein calves. A total of thirty calves were randomly divided into three experimental groups: a control group and two treatment groups receiving probiotics at doses of 1 g/10 kg and 1.5gt/10 kg live weight. Key indicators, including Live Weight (LW), Body Measurements … …OnLine Journal of Biological Sciences, Vol. 25, Issue 3 · 23 Jul 2025 · 3,626 accessesView PDFCite
Research ArticleOpen accessIn the abstractEffects of Dietary Isoleucine Supplementation on the Growth Performance, Carcass Characteristics and Ileal Morphology of Native ChickensCharles Venirius Lisnahan, Oktovianus Rafael Nahak, Lukas PardosiThe roles of isoleucine in the protein synthesis, metabolisms, and growth of chicken have been widely reported. However, its effect on native chicken has not been previously reported. In this work, we reported the effects of dietary isoleucine supplementation on growth performance, carcass characteristics, and ileal morphology in native chickens during the grower phase (6-12 weeks). Two hundred native chickens … …OnLine Journal of Biological Sciences, Vol. 25, Issue 2 · 21 Jun 2025 · 2,940 accessesView PDFCite
Research ArticleOpen accessIn the abstractProduction and Reproduction of Primiparous Guinea Pigs Concerning Lysine LevelsYasmeen Camila Vargas-Jauja, Karin Marleny Casilla-Huallpa, Liz Beatriz Chino-Velasquez et al.The development of breeding animals is essential to ensure the productivity of guinea pigs, so an adequate supply of nutrients is required. However, information on their nutritional requirements is limited, particularly with regard to amino acids such as lysine, wich affects their productive performance. We evaluated the effects of dietary lysine levels (0.84, 1.01, 1.18, and 1.34%) on prim parous … …American Journal of Animal and Veterinary Sciences, Vol. 20, Issue 2 · 28 May 2025 · 5,467 accessesView PDFCite
Research ArticleOpen accessIn the abstractBiosynthesis and Evaluation of Zinc, Copper, and Methionine Feed Supplements Using Saccharomyces cerevisiae on Duck Performance in Minimal Water SystemsHendi Setiyatwan, Muhammad Rifqi IsmirajOptimizing duck performance under minimal water conditions is essential for sustainable poultry farming. Biosynthesizing essential feed supplements like Zinc (Zn), Copper (Cu), and methionine using Saccharomyces cerevisiae presents a promising method to enhance growth and meat quality. This study developed a biosynthesis method for Zn, Cu, and methionine supplements using S. cerevisiae and evaluated their effects on duck performance. In … …American Journal of Animal and Veterinary Sciences, Vol. 20, Issue 1 · 11 Feb 2025 · 4,405 accessesView PDFCite
Research ArticleOpen accessIn the abstractDietary Protein and Energy Levels at 3200 m Altitude for Slow-Growing ChickensMariela Ketty Meza-Morveli, Liz Beatriz Chino-Velasquez, Jesús Camero DeLaCuba et al.The extent to which energy and protein (CP) levels can be reduced without impacting productivity in slow-growing chickens remains undetermined. The treatments were conducted to evaluate the effect of dietary CP (17.5, 19, and 20.5%) and energy (2850-2950 kcal ME/kg) on slow-growing chickens using an ideal protein concept at a high altitude (3200 m). We used a total of 144 … …American Journal of Animal and Veterinary Sciences, Vol. 19, Issue 4 · 20 Dec 2024 · 5,275 accessesView PDFCite
Research ArticleOpen accessIn the abstractEffect of High Incubation Temperature on Embryo Livability, Mortality, Hatchability, and Chick Quality in Commercial LayersKhathutshelo Simon Masia, Khathutshelo Agree Nephawe et al.This research was conducted to determine the effect of high incubation temperature profiles on embryo livability, mortality, hatchability, and chick quality in commercial layers. Incubation temperature profiles were: Control (day 0-4: 37.8°C, day 5-9: 37.2°C, day 10-11: 37.0°C, day 12-13: 36.8°C), moderately high (day 0-4: 38.5°C, day 5-9: 38.2°C, day 10-11: 37.5°C, day 12-13: 37.0°C) and extremely high (day 0-4: … …American Journal of Animal and Veterinary Sciences, Vol. 19, Issue 4 · 19 Nov 2024 · 5,213 accessesView PDFCite