42 results for “Dairy Cattle”

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Research ArticleOpen accessPhrase in the titleMonitoring of Reproductive Capacity of Dairy Cattle in Eurasia: A Comparative Study in Kazakhstan and the Republic of TuvaAnuarbek Temirbekovich Bissembayev, Sayana Darzhaevna Mongush, Dauren Maratovich Bekenov et al.This study investigates the reproductive capacity of dairy cattle populations in the Republic of Kazakhstan and the Republic of Tuva (Russian Federation). Experimental work was conducted at four study sites: in Kazakhstan, Abdrakhmanov Bolat Dauletbekovich SP (Akmola region) and Alimzhanov TS farm (Almaty region); in the Republic of Tuva, Oyun SP of Kyzyl district (forest-steppe population) and SPK Breeding Farm … …OnLine Journal of Biological Sciences, Vol. 25, Issue 4 · 14 Jan 2026 · 2,373 accessesView PDF Cite

Review ArticleOpen accessPhrase in the titleBrucellosis Management in Dairy Cattle Farms: Reviewing Programs and Addressing Challenges in Iranian Dairy Cattle FarmsMaryam Dadar, Jamal GharekhaniBrucellosis, a zoonotic infection caused by Brucella species, remains a significant public health issue, affecting both animal and human health and the economy globally. This review focuses on brucellosis in dairy cattle farms in Iran, examining its prevalence, distribution, and control strategies. A systematic review of studies from databases like PubMed, Scopus, and Google Scholar found that Brucella abortus biovar … …American Journal of Animal and Veterinary Sciences, Vol. 20, Issue 2 · 25 Aug 2025 · 5,199 accessesView PDF Cite

Research ArticleOpen accessPhrase in the titleEffect 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 PDF Cite

Research ArticleOpen accessPhrase in the titleA Characterization of Inflammatory and Structural Markers within the Rumen Epithelium During Grain-Induced Ruminal Acidosis in Lactating Dairy CattleL. Dionissopoulos, M. A. Steele, O. AlZahal et al.The objective of this study was to characterize the mRNA and protein expression of inflammatory and structural genes in the rumen epithelium during grain-induced ruminal acidosis in lactating dairy cattle. A total of 16 rumen-fistulated, lactating Holstein dairy cattle (618±35 kg of body weight, 221±32 days in milk) were used in a randomized complete block design study. All cattle were … …American Journal of Animal and Veterinary Sciences, Vol. 7, Issue 3 · 19 Sep 2012 · 8,035 accessesView PDF Cite

Research ArticleOpen accessPhrase in the titleClinical and Surgical Findings and Outcome Following Rumenotomy in Adult Dairy Cattle Affected with Recurrent Rumen Tympany Associated with Non-Metallic Foreign BodiesZ. Bani Ismail, A. Al-Majali, K. Al-QudahMedical records of 31 adult dairy cows suffering from recurrent rumen tympany for at least 1 month duration that underwent exploratory laparotomy and rumenotomy were reviewed and information was obtained on signalment, history, physical examination findings, laboratory findings and surgical findings. Cases were categorized according to surgical findings into 3 groups. Group 1 (n = 10) included cattle with reticuloruminal, … …American Journal of Animal and Veterinary Sciences, Vol. 2, Issue 3 · 30 Sep 2007 · 8,927 accessesView PDF Cite

Research ArticleOpen accessPhrase in the titleThe Effects of Subacute Ruminal Acidosis on Milk Fatty Acid Profile in Dairy CattleC. Mitchell, O. ALZahal, M.M. Or-Rashid et al.The objective of this experiment was to examine the effect of Subacute Ruminal Acidosis (SARA) on milk fatty acid (FA) profiles with emphasis on odd-chain and branched-chain FA. Sixteen multiparous Holstein dairy cows (618±35 kg of body weight, 221±32 days in milk) were used in a randomized complete-block design. During week 1, all cows received a high-forage diet (90% chopped … …American Journal of Animal and Veterinary Sciences, Vol. 11, Issue 2 · 27 Apr 2016 · 7,740 accessesView PDF Cite

Research ArticleOpen accessIn the keywordsReproductive 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 PDF Cite

Research ArticleOpen accessIn the keywordsEfficient 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 PDF Cite

Research ArticleOpen accessIn the keywordsThe Association between Total Mixed Ration Particle Size and Fecal Scores in Holstein Lactating Dairy Cows from Florida, USAPedro Melendez, Elizabeth RoyThe objective of this study was to determine the association between the proportion of particles greater than 19 mm in a total mixed ration fed to dairy cattle and their fecal score. Over a 22 day period, random feed samples were collected twice a day from a one-side barn and assessed for particle size using the Pennsylvania State Particle Separator. … …American Journal of Animal and Veterinary Sciences, Vol. 11, Issue 1 · 6 Jan 2016 · 8,084 accessesView PDF Cite

Literature ReviewOpen accessIn the keywordsSystematic Review of Single Nucleotide Polymorphisms of Cattle Beta-Lactoglobulin Gene and their Association with Milk Production TraitsThlarihani Cynthia Makamu, Thobela Louis TyasiThe application of molecular genetics technology to pinpoint certain DNA markers associated with commercially significant features is highly anticipated since it has the potential to enhance the effectiveness of breeding programs by selecting young animals early for use as future breeding stock. One of the main genes expressed in bovine milk is the Beta-Lactoglobulin Gene (βLG), and its polymorphism can … …American Journal of Animal and Veterinary Sciences, Vol. 19, Issue 2 · 4 Mar 2024 · 5,811 accessesView PDF Cite