47 results for “Calves”

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Research ArticleOpen accessEvery word in the titleEvaluation of Some Physical, Haemathological and Clinical Chemistry Parameters in Healthy Newborn Italian Holstein CalvesFrancesca Bonelli, Carolina Castagnetti, EleonoraIacono et al.The aim of the present study was to investigate some physical, haematological and clinical chemistry parameters in the newborn Italian Holstein calf at birth and at 24 h of life, to evaluate changes during the immediate post-partum period. Forty-six Italian Holstein Friesian calves were included in this study. Heart rate, respiratory rate and body temperature were recorded at birth and … …American Journal of Animal and Veterinary Sciences, Vol. 10, Issue 4 · 6 Nov 2015 · 7,293 accessesView PDF Cite

Research ArticleOpen accessEvery word in the titleDEVELOPMENT OF THE INNATE IMMUNE RESPONSE AND INFLUENCE OF COLOSTRUM SUCKLING IN CALVESViviani Gomes, Camila Costa Baccili, Vinicius Alvim Passos Baldacim et al.Bovine colostrum contains immune factors, like leukocytes and cytokines that are absorbed by the intestinal mucosa of the neonate, however, not much is known about the function of some of these components in the active immune response of calves. The aim of this study was to determine the influence of colostrum intake and development of the innate immune response of … …American Journal of Animal and Veterinary Sciences, Vol. 9, Issue 2 · 14 Apr 2014 · 7,475 accessesView PDF Cite

Research ArticleOpen accessEvery word in the titleDetection of Antibodies Against Bovine Herpes Virus 1, Bovine Viral Diarrhea Virus and Bovine Respiratory Syncytial Virus in Early and Ultra-Early Weaned Beef CalvesDiego Daniel Gonzalez, Juan Sebastian Vittone, Martin Lado et al.Bovine respiratory disease is the leading cause of morbidity and mortality in weaned calves. In Argentina, two weaning practices have been implemented. In the early weaning, the calf is removed from the cow at 60-70 days of age while in ultra-early weaning the calf is weaned at 30-45 days of age. The purposes of both systems is to improve cow … …American Journal of Animal and Veterinary Sciences, Vol. 8, Issue 4 · 29 Oct 2013 · 8,384 accessesView PDF Cite

Research ArticleOpen accessEvery word in the titleComparison of Isoflurane and Sevoflurane Anesthesia in Holstein Calves for Placement of Portal and Jugular Vein CannulasGlen Sellers, Hui-Chu Lin, Manuel Felipe Chamorro, Paul Harold WalzIsoflurane and sevoflurane are the two most commonly used inhalation anesthetics in veterinary medicine today. This study compared the anesthetic effects between isoflurane and sevoflurane in 17 calves undergoing surgery for placement of portal and jugular vein cannulas. Using a randomized control trial, calves were assigned to receive sevoflurane or isoflurane. Anesthesia was induced with xylazine and ketamine then maintained … …American Journal of Animal and Veterinary Sciences, Vol. 8, Issue 1 · 2 Jan 2013 · 7,903 accessesView PDF Cite

Research ArticleOpen accessIn the keywordsIncreasing Immunity in Young Cattle Through the Use of the Probiotic Preparation Lactobact-ARZMyktybaeva Raya, Alpeisov Shokhan, Kozhakhmetova Zubaira, Kyrgyzbay NazymAccording to the Kazakhstan national animal health monitoring system, the mortality rate of young farm animals ranges from 4.2% to 7.8%, with gastrointestinal diseases being the main registered condition. This study aimed to create a locally produced probiotic, formulated using a consortium of lactic acid bacteria, to enhance the immune function of young farm animals. The study utilized a newly … …American Journal of Animal and Veterinary Sciences, Vol. 20, Issue 3 · 3 Dec 2025 · 2,272 accessesView PDF Cite

Research ArticleOpen accessIn the keywordsDetermination 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 PDF Cite

Research ArticleOpen accessIn the keywordsProduction of Selenium-Enriched Yeast (Kluyveromyces marxianus) Biomass in a whey-based Culture MediumNicolás Gurdo, Mario Calafat, Diego Gabriel Noseda, Isabel GigliTwo important aspects of agriculture intensification are the reduction in the concentration of specific soil minerals that affects livestock production and the increase of agricultural by-products, which produce environmental pollution. In this regard, whey - a cheese by-product-often is considered a wasted-product. Due to its lactose concentration, (4.5%), when whey is discarded without treatment generates a high Biological Oxygen Demand … …American Journal of Biochemistry and Biotechnology, Vol. 14, Issue 2 · 28 Jun 2018 · 11,375 accessesView PDF Cite

InvestigationOpen accessIn the keywordsImprovement of the Technology for Young-Stock Breeding of Black-and-White Diary Cattle in the Southeast of KazakhstanDinara Asylbekovna Begaliyeva, Aleydar Saldarovich Alentayev, Abdirakhman Moldanazarovich Ombayev, Dastanbek Asylbekovich BaimukanovIt was found that it is possible to give high-quality starter feeds to calves beginning from the 4th day of age and not later than from the 10th-12th day of age. A high-calorie starter contains 16-18% of raw protein or 20% of protein, if calves are weaned when they are four weeks old or younger. Whole milk in the ration … …OnLine Journal of Biological Sciences, Vol. 17, Issue 4 · 5 Oct 2017 · 7,397 accessesView PDF Cite

Research ArticleOpen accessIn the abstractPerformance of Stocker Cattle Managed On Pastures Over-Seeded With Annual ForagesMichael Martinez, Daniela Brown, Sidney Garrison et al.The goal of this study was to determine the performance of stocker calves managed on permanent pastures over-seeded with winter and summer annuals. Twenty-one 7-month-old Angus calves (BW = 263 ± 24 kg) sourced from the university farm, were randomly assigned to three treatments. The treatments were: i) Grass Hay Only (GHO; Control; 5 calves), ii) Permanent Pasture Only (PPO; … …American Journal of Animal and Veterinary Sciences, Vol. 21, Issue 2 · 5 Aug 2026 · 889 accessesView PDF Cite

Research ArticleOpen accessIn the abstractSelection of Kalmyk Cattle in KazakhstanAnuarbek Temirbekovich Bissembayev, Alzhan Smailuly Shamshidin, Zhanat Maratovich Kasenov et al.The purpose of the study is to determine the precocity of Kalmyk cattle breeding stock in Kazakhstan and the accuracy of productivity assessment by indices of breeding value. It is established that calves are born with a live weight of 22.4-25.7 kg, at the age of six months they reach a live weight of 165.2-175.3 kg. The average daily increase … …OnLine Journal of Biological Sciences, Vol. 24, Issue 1 · 23 Nov 2023 · 5,716 accessesView PDF Cite