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36 results for “Lactation”
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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 abstractExterior and Body Types of Cows with Different Levels of Dairy ProductivityDastanbek Asylbekovich Baimukanov, Anuarbek Temirbekovich Bissembayev, Stepan Dmitrievich Batanov et al.The research aimed to study the dynamics of changes in the selection and genetic parameters of the body, to determine the relationship between the productive qualities and the exterior of cows in the population of Holsteinized black-and-white and Kholmogory cattle of the Udmurt Republic. Cows with a productivity level of more than 8000 kg of milk for 305 days of … …American Journal of Animal and Veterinary Sciences, Vol. 17, Issue 2 · 8 Jun 2022 · 6,013 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 abstractFollicle Stimulating Hormone and Gonadotropin Releasing Hormone Administration to the Superovulation of Buffalo (Bubalus bubalis)Tinda Afriani, Ferdinal Rahim, Arif Rachmat et al.This study aims to determine the response of superovulation, corpus luteum number, onset and duration of estrus in Swamp Buffalo after administration of Follicle Stimulating Hormone (FSH) and Gonadotropin Releasing Hormone (GnRH). The material used is 16 mother Swamp Buffaloes with an average body weight of 500 kg and age between 3-5 years. The dairy performance index such as the … …American Journal of Animal and Veterinary Sciences, Vol. 15, Issue 2 · 29 Apr 2020 · 6,695 accessesView PDFCite
Research ArticleOpen accessIn the abstractModeling of Some Dairy Performance Indices on Milk Somatic Cell Count in Holstein Dairy CowsAhmed Dawod, Sherif Shawky, Tamer M. Abdel-Hamid et al.This study was conducted to evaluate the direct and the indirect standardized effects of some dairy performance parameters (days dry, lactation length, parity, total milk yield and 305-day milk yield) on the milk Somatic Cell Count (SCC) of Holstein cows throughout modeling of these variables with the path analysis technique. During studying 617 Holstein cows were enrolled in the experiment … …American Journal of Animal and Veterinary Sciences, Vol. 14, Issue 4 · 27 Oct 2019 · 7,235 accessesView PDFCite
Research ArticleOpen accessIn the abstractEffect of Different Rumen Undegraded Protein Level on Feed Consumption, Nutrient Digestion, Body Weight and Body Condition Score in Early Lactating Dairy CattleBudi Prasetyo Widyobroto, Rochijan, Fajar Satrio Pradana, Lies Mira YusiatiThe objective of this study was to determine effect of different rumen undegraded protein level on feed consumption, nutrient digestion, body weight and body condition score in early lactating dairy cattle. Ten Friesian Holstein cows were divided into two groups (five animals were used as control and another group as treatment object). Diets were forages and concentrates with ratio of … …OnLine Journal of Biological Sciences, Vol. 18, Issue 2 · 30 May 2018 · 7,692 accessesView PDFCite
Research ArticleOpen accessIn the abstractEffect of Complete Feed Silage Made from Agricultural Waste on Milk Yield and Quality of Dairy CowsAmbo Ako, Syahdar Baba, Fatma et al.The problem facing dairy cow producers in tropical area is the low availability of proper nutrition, especially during the dry season. One solution to overcome this problem is to utilize technology of Complete Feed (CF) silage using ensiled several local abundant ingredients from agricultural wastes. This study aimed to find a formulation of CF silage from agricultural wastes as forage … …OnLine Journal of Biological Sciences, Vol. 16, Issue 4 · 17 Nov 2016 · 7,502 accessesView PDFCite
Research ArticleOpen accessIn the abstractEffect of Inclusion of Albizia saman Pods in the Diet on the Performances of Dairy CowsMin Aung, Yin Yin Kyawt, Moe Thida Htun et al.Ruminants can achieve high productivity when the diet includes concentrates; however these are often expensive due to competition with humans and mono-gastric animals. This experiment was conducted to determine the effect of partial inclusion of Albizia saman pods (ASP) in a Commercial Concentrate (CC) on the performances of dairy cows. Twelve cross-bred Holstein Friesian cows (472±13 kg) in the 12th … …American Journal of Animal and Veterinary Sciences, Vol. 11, Issue 1 · 29 Dec 2015 · 7,585 accessesView PDFCite
Research ArticleOpen accessIn the abstractChanges in the Rumen Papillae During the Periparturient Transition in Holstein Dairy Cows are Accompanied by Changes in Abundance of Proteins Involved in Intracellular pH Regulation, But not SCFA TransportAnne Hermen Laarman, Adam Kleinberg, Michael Alexander Steele et al.The objective of this study was to examine changes in SCFA transport capacity in the rumen epithelium during the parturition transition period. Twelve pregnant, cannulated primiparous and multiparous cows were fed a standard Total Mixed Ration (TMR) for the duration of the dry period; after calving, all cows were switched to an early lactation TMR. Rumen pH, fluid and biopsies … …American Journal of Animal and Veterinary Sciences, Vol. 10, Issue 1 · 31 Mar 2015 · 7,546 accessesView PDFCite
Research ArticleOpen accessIn the abstractEFFECT OF PUERPERAL METRITIS ON HOLSTEIN COWS PRODUCTIVE, REPRODUCTIVE VARIABLES AND CULLING RATESA. Dawod, Byeng R. MinThe objective of the study was to determine the effect of puerperal metritis prevalence in high yielding Holstein cows on productive (305 days, actual milk yields), reproductive (days to first estrus, days open and services per conception) variables and culling rates. Throughout the study, 2885 dairy records were collected from high yielding private Holstein dairy farm (average milk yield was … …American Journal of Animal and Veterinary Sciences, Vol. 9, Issue 3 · 12 Nov 2014 · 6,950 accessesView PDFCite