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Research ArticleOpen accessIn the abstractPrevalence and Risk Factors of Bovine Fascioliasis in Northeastern PeruClavel Diaz-Quevedo, Hugo Frias et al.Bovine fascioliasis in Peru is highly prevalent in almost all regions; however, there are few studies about its prevalence in the region of Amazonas. This research aimed to determine the prevalence and risk factors associated with fascioliasis from four livestock basins in the Amazonas region. A total of 941 bovine feces samples were analyzed and a prevalence of 52% was … …American Journal of Animal and Veterinary Sciences, Vol. 18, Issue 3 · 25 Jul 2023 · 5,685 accessesView PDFCite
Research ArticleOpen accessIn the abstractIsolation and Culture of Oocytes from Dairy Cows' Ovaries for Productivity in the Southeastern Region of KazakhstanDauren Maratovich Bekenov, Batyrkhan Azimkhanovich Buralkhiev, Yusupzhan Artykovich Yuldashbayev et al.This research work aims to study methods for isolating and culturing follicular oocytes from Holstein cows in vitro. The proven complex of technologies for embryo transplantation on an industrial scale will provide a 3-5-fold acceleration of reproduction of highly productive cows. As a result of scientific research, biotechnological methods of accelerated reproduction of dairy cattle have been substantiated and introduced … …OnLine Journal of Biological Sciences, Vol. 24, Issue 4 · 14 Oct 2024 · 4,298 accessesView PDFCite
Research ArticleOpen accessIn the abstractEffect of a Phytomineral Complex and an Enzyme Preparation on the Absorption of Nutrients and the Energy Balance of Calves' DietEvgeniia Erenko, Aleksandr Ovchinnikov, Marat Aubakirov et al.Cost-effective animal husbandry directly depends on the correct breeding of replacement young animals using diets corresponding to the feeding rate for all nutrition elements of the detailed system. Critical to these diets are biogenic elements, pivotal in enzymatic reactions and immune defense. However, specifics on enhancing nutrient absorption through dietary supplements remain underexplored, particularly in the context of calves' preweaning … …OnLine Journal of Biological Sciences, Vol. 24, Issue 4 · 12 Jun 2024 · 4,592 accessesView PDFCite
Research ArticleOpen accessIn the abstractInfluence of Various Schemes of Feeding Calves with Whole Milk on their Growth Indicators and Physiological StateK. K. Akhazhanov, T. K. Bekseitov, J. J. Uakhitov et al.In dairy farming, special requirements are imposed on the feeding of replacement young animals. The period when young animals receive colostrum and milk is considered important for raising viable and productive animals. During this time, a large amount of whole milk is consumed by calves. In this connection, the purpose of our study was to compare the effect of various … …American Journal of Animal and Veterinary Sciences, Vol. 18, Issue 3 · 16 Aug 2023 · 5,361 accessesView PDFCite
Research ArticleOpen accessIn the abstractEstimated Breeding Values of Aberdeen-Angus Cattle BreedAnuarbek Temirbekovich Bissembayev, Alzhan Smailuly Shamshidin, Zhanat Maratovi Kasenov et al.The study aims to calculate the estimated breeding value of Aberdeen-Angus cattle using the BLUP method. The live weight of cattle of the Aberdeen-Angus breed was: At birth in bulls 28.25 kg and in heifers 27.18 kg; on day 210, at weaning in bulls 212.31 kg and in heifers 198.04 kg; on day 365, respectively, 328.02 kg and 304.73 kg. … …OnLine Journal of Biological Sciences, Vol. 23, Issue 3 · 7 Jul 2023 · 7,679 accessesView PDFCite
Research ArticleOpen accessIn the abstractProductive Traits and Reproductive Capacity of First-Calf Cows at Different Selection OptionsAnuarbek Temirbekovich Bissembayev, Dastanbek Asylbekovich Baimukanov, Orest Antipovich Bassonov et al.The research work is aimed at determining and establishing the degree of influence of various selection options on the productive and reproductive qualities of the first-calf cows of the black-and-white breed. The research results showed that according to the Parental Index of Cows (PIC), animals of the 5th experimental group surpass their mates in the 2 and 3 groups in … …OnLine Journal of Biological Sciences, Vol. 23, Issue 2 · 10 Mar 2023 · 4,737 accessesView PDFCite
Research ArticleOpen accessIn the abstractEffect of Semen on the Embryo Productivity of Donor Cows and the Development of Transplant CalvesBolatbek Ateikhan, Toktar Karibaevich Bexeitov, Talgat Kozybakovich Seiteuov et al.In animal husbandry, more heifers are requiredfor the expanded reproduction of the herd or milk, and more bulls are needed toobtain meat. One of the effective ways to artificially regulate the secondary(at birth) sex ratio is the technology of sexed semen. In this connection, thepurpose of this study was to study the effect of sexed and native semen on theembryonic … …OnLine Journal of Biological Sciences, Vol. 22, Issue 3 · 6 Sep 2022 · 5,430 accessesView PDFCite
Research ArticleOpen accessIn the abstractComparative Assessment of Meat Quality Characteristics of Cattle Depending on Breed, Age and Growing Conditions in the Republic of KazakhstanGulzat Oraz, Asan Ospanov, Urishbay Chomanov et al.The results of meat productivity of young cattle of beef breeds (Auliekol, Kazakh Whitehead, Galloway, Hereford) depending on the breed, sex, and age (young bulls, steers-calves, heifers, first-calf cows, adult cattle-cows, bulls, calves) grown in the Western Region of the Republic of Kazakhstan during winter, turning winter (pre-spring), early spring and spring periods are given. The animals were divided into … …OnLine Journal of Biological Sciences, Vol. 22, Issue 2 · 19 May 2022 · 6,940 accessesView PDFCite
Research ArticleOpen accessIn the abstractEfficient Breeding in Kazakhstan Alatau Cattle Breed PopulationAidar Dastanbekuly Baimukanov, Yusupzhan Artykovich Yuldashbayev, Vladimir Alexandrovich Demin et al.The research work aims to analyze the dynamics of the level of breeding work in the Kazakhstan Alatau cattle breed population. The research object was Alatau cattle breed from different farms of the Almaty region, differing in their breeding level and system for dairy cattle breeding. As of 01.01.2021, the population of cows of the Alatau breed in the studied … …American Journal of Animal and Veterinary Sciences, Vol. 16, Issue 4 · 17 Dec 2021 · 6,960 accessesView PDFCite
Research ArticleOpen accessIn the abstractBeef Productivity of Limousine Cattle at Stable KeepingIrina Vlasova, Inna Ventsova, Alexander Vostroilov et al.The regularities of the post-embryonic development of farm animals have been studied by numerous researchers. Their ontogenesis is a result of the complex interaction of animal genotype with those conditions of the external environment in which their hereditary basis is realized. In Russia, the stable keeping system of the cattle is highly relevant as many farms do not have large … …American Journal of Animal and Veterinary Sciences, Vol. 15, Issue 4 · 23 Oct 2020 · 6,762 accessesView PDFCite