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51 results for “dairy cows”
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Research ArticleOpen accessIn the keywordsEFFECT 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
Research ArticleOpen accessIn the keywordsThe Innate Immunity in Bovine Mastitis: The Role of Pattern-Recognition ReceptorsFernando Nogueira de Souza, Eduardo Milton Ramos Sanchez, Marcos Bryan Heinemann et al.Mastitis is the most costly disease for dairy farmers and industry, which are mainly caused by the entry of bacteria to the teat canal. Shortly after the entry of the invading bacteria, the innate immunity recognizes the invading pathogen through pattern recognition receptors and initiates the inflammatory response necessary to eliminate the invading bacteria. This initial inflammatory response releases cytokines … …American Journal of Immunology, Vol. 8, Issue 4 · 18 Oct 2012 · 10,352 accessesView PDFCite
Research ArticleOpen accessIn the keywordsFirst Confirmed Case of Digital Dermatitis in GreeceP.D. Katsoulos, A. Minas, G. ChristodoulopoulosThe objective of the present study was to report the first confirmed case of digital dermatitis in Greece, emphasizing to the clinical appearance of the disease and to discuss some potential mechanisms concerning the entrance and the contagiousness of the disease in a new herd. The outbreak occurred in a new dairy farm of 60 primiparous Holstein cows in Thessaloniki … …American Journal of Animal and Veterinary Sciences, Vol. 3, Issue 2 · 30 Jun 2008 · 6,825 accessesView PDFCite
Research ArticleOpen accessIn the keywordsEffect of Fat-Mineral Preparation From Fish Oil on Fatty Acid Content on Cow MilkWitold Janeczek, Marek Szoltysik, Robert Kupczynski et al.8-week-lasting investigation aimed at the assessment of the effect of fish oil application in the form of fat-mineral preparation (F-M) on fatty acid content in milk fat. The subject of this investigation were highly efficient dairy cows (primiparous and multiparous). The cows were administered F-M containing fish oil (1% in dry mass of ration) which resulted in decreased level of … …American Journal of Agricultural and Biological Sciences, Vol. 2, Issue 4 · 31 Dec 2007 · 7,824 accessesView PDFCite
Research ArticleOpen accessIn the abstractEffect of an IgY-Based Immunomodulatory Combo on the Internalization of Staphylococcus aureus by HC11 Cells: Preliminary in vitro Studies IIZarete Jatna Isha, Adu-Addai BenjaminInfectious mastitis is a common disease of cattle of economic significance. Clinical mastitis affects between 20 to 25% of dairy cows each year. Staphylococcus aureus (SA) causes an estimated 10-11.7% of bovine infectious mastitis cases in the US, reducing milk production, increasing morbidity, increasing antibiotic use and milk waste, and fueling premature culling. The SA mastitis cure rate varies from … …American Journal of Infectious Diseases, Vol. 21, Issue 1 · 1 Feb 2026 · 2,814 accessesView PDFCite
Research ArticleOpen accessIn the abstractGenome-Wide Association Study of Single Nucleotide Polymorphisms with Milk Traits in Red Gorbatov CattleMarina Ivanovna Selionova, Grigorii Sergeyevich Shekhovtsev, Ivan Petrovich Prokhorov et al.In order to preserve the gene pool of the Red Gorbatov breed, it is necessary to use a set of genomic analysis tools that allows more efficient planning in obtaining individuals who meet the economic requirements of dairy farming. The aim of the work was to identify candidate genes associated with milk production traits in Red Gorbatov cattle using a … …American Journal of Animal and Veterinary Sciences, Vol. 19, Issue 4 · 12 Oct 2024 · 4,736 accessesView PDFCite
Research ArticleOpen accessIn the abstractEco-Friendly Eggshell Meal on Milk Yield and Quality of Holstein Friesian CowsAmbo Ako, Renny Fatmyah Utamy, Hasbi Hasbi et al.Aditya, S., Stephen, J., & Radhakrishnan, M. (2021). Utilization of Eggshell Waste in Calcium-Fortified Foods and other Industrial Applications: A Review. Trends in Food Science & Technology, 115, 422–432. https://doi.org/10.1016/j.tifs.2021.06.047 Ahmed, T. A. E., Wu, L., Younes, M., & Hincke, M. (2021). Biotechnological Applications of Eggshell: Recent Advances. Frontiers in Bioengineering and Biotechnology, 9, 675364. https://doi.org/10.3389/fbioe.2021.675364 Aminah, S., & Meikawati, … …American Journal of Animal and Veterinary Sciences, Vol. 19, Issue 2 · 26 May 2024 · 7,730 accessesView PDFCite
Research ArticleOpen accessIn the abstractPrevention of Heat Stress in Lactating CowsVladimir Zaitsev, Vasily Korotkiy, Nadezhda Bogolyubova et al.In summer, when the air temperature rises, dairy cattle are very susceptible to heat stress, which results in a significant decline in productivity. The goal of the study is to assess how a Coniferous Energy Supplement (CES) made from raw materials derived from forestry waste affects lactating cows' ruminal digestion, milk production, and quality in extreme temperatures. Two sets of … …American Journal of Animal and Veterinary Sciences, Vol. 19, Issue 1 · 19 Dec 2023 · 5,113 accessesView PDFCite
Research ArticleOpen accessIn the abstractReproductive Indicators of the Alatau Cattle Breed of Kazakhstan PopulationAidar Dastanbekuly Baimukanov, Anuarbek Temirbekovich Bissembayev, Yusupzhan Artykovich Yuldashbayev et al.The research aims to study the reproductive indicators and dairy productivity of the modern Kazakhstan population of the Alatau cattle breed. The average duration of the dry period is within the physiological norm, being 60-75 days. As noted above, an increase in the service period can negatively affect herd reproduction. In this regard, some measures were taken to normalize the … …OnLine Journal of Biological Sciences, Vol. 24, Issue 1 · 5 Nov 2023 · 5,245 accessesView PDFCite
Research ArticleOpen accessIn the abstractEstimated Breeding Value of Kazakh White-Headed Cattle BreedAnuarbek Temirb Bissembayev, Dastanbek Asylbekovich Baimukanov, Vladimir Ivanovich Trukhachev et al.The purpose of the study is to establish the estimated breeding value index of Kazakh white-headed cattle by productive indicators. The Estimated Breeding Value (EBV) of the productive indicators of animals of the Kazakh white-headed breed was determined for 2018-2021. The index values were further interpreted as an assessment of the own genetic productivity of each evaluated animal relative to … …American Journal of Animal and Veterinary Sciences, Vol. 18, Issue 2 · 14 Apr 2023 · 6,862 accessesView PDFCite