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33 results for “Calf”
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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
Research ArticleOpen accessIn the abstractThe Motility and Ratio of X and Y Sperm Filial Ongole Cattle Using Different Sexed Semen MethodsEnike Dwi Kusumawati, N. Isnaini, A.P.A. Yekti et al.Artificial Insemination (AI) using sexed semen produce sex of calf as expected. There are various methods of sexed semen has been found. The aim of this research is to determine the effect of sexed semen methods using egg white sedimentation and percoll density gradient centrifugation toward motility and ratio of X and Y sperm Filial Ongole Cattle. Semen was collected … …American Journal of Animal and Veterinary Sciences, Vol. 14, Issue 2 · 9 May 2019 · 9,016 accessesView PDFCite
Research ArticleOpen accessIn the abstractEffect of Saccharomyces cerevisiae and Mannan-Oligosaccharides on Daily Weight Gain and Health of Pre-Weaned Holstein Calves in ChilePedro Melendez, Pablo Pinedo, Maria Paz Marin, Angelica AriasThe objective was to compare the effect of S. cerevisiae and mannan-oligosaccharides on Average Daily Gain (ADG), live weight and health of dairy calves in Chile. Calves were weighed at birth and randomly assigned to 3 groups: (i) Yeast (YS): 5 g/calf/day of a live yeast (n = 25); (ii) Mannan (MN): 3 g/calf/day of mannan-oligosaccharides (n = 25); (iii) … …American Journal of Animal and Veterinary Sciences, Vol. 13, Issue 1 · 1 Feb 2018 · 8,073 accessesView PDFCite
Research ArticleOpen accessIn the abstractIncrease in Crude Protein Content of Milk Replacers with Vegetable Protein: Effect on Health and Dairy Calves' PerformanceEvangelina Miqueo, Thais Manzoni Torrezan, Nathalia Britto Rocha et al.The use of milk replacer instead of whole milk may be an economical alternative to calf-rearing systems. However, together with the volume fed, its composition is critical for high performance, especially regarding the origin of the protein. Two milk replacers with different protein content were evaluated to see the effect on the performance of calves. Thirty-three Holstein calves were distributed … …American Journal of Animal and Veterinary Sciences, Vol. 12, Issue 1 · 6 Feb 2017 · 7,776 accessesView PDFCite
Research ArticleOpen accessIn the abstractNUTRITIONAL CHARACTERISTICS OF THE DAIRY COW DURING EARLY GESTATION AND SUBSEQUENT GROWTH AND CARDIAC MEASUREMENTS OF HER OFFSPRINGJ. E. Larson, B. E. Voelz, D. K. Hardin, C. O. LemleyThe objective was to determine whether maternal nutritional status and milk production during early gestation influenced or were correlated with parameters of the calf at birth and at 1 month of age. From parturition until 90 days pregnant, blood samples were collected every 14 days in dairy cows and plasma was assayed for concentrations of glucose and β-Hydroxybutyrate (BHBA). Calves … …American Journal of Animal and Veterinary Sciences, Vol. 9, Issue 3 · 15 Sep 2014 · 7,625 accessesView PDFCite
Research ArticleOpen accessIn the abstractEFFECTS OF SUPPLEMENTAL LYSINE ON PERFORMANCE, ANTIBODY TITER AND RECTAL TEMPERATURE IN RESPONSE TO A MODIFIED-LIVE VIRAL VACCINE IN NEONATAL CALVESKate Sharon, Glenn Duff, Jeff Dailey et al.Infectious Bovine Rhinotracheitis (IBR), caused by bovine herpesvirus-1, contributes significantly to economic losses in the dairy and beef cattle industry. Lysine has been shown reduce virulence of herpesviruses in felids and humans. Our objective was to evaluate the effects of supplemental lysine on serum IBR antibody titer and rectal temperature in response to a modified-live Intranasal (IN) or Intramuscular (IM) … …American Journal of Animal and Veterinary Sciences, Vol. 9, Issue 2 · 2 Jun 2014 · 7,606 accessesView PDFCite
Research ArticleOpen accessIn the abstractDetection 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 PDFCite
Research ArticleOpen accessIn the abstractBovine Viral Diarrhea-an Emerging Disease in Camelids a ReviewU. WerneryBovine Viral Diarrhea (BVD) is an emerging disease in both New World Camelids (NWCs) and Old World Camelids (OWCs). The virus has been isolated from NWCs particularly in alpacas and dromedaries, but there are no reports of BVD in Bactrians. BVD is an important infectious disease. Both sub-genotypes 1a, 1b and genotype 2 have been isolated from NWCs but the … …Current Research in Virology, Vol. 1, Issue 1 · 30 Aug 2012 · 12,849 accessesView PDFCite
Research ArticleOpen accessIn the abstractEffect of Fetal Serum and Follicular Liquor Supplementation on the In Vitro Production of Bovine EmbryosClara Larocca, Yael Filipiak, William Perez, Juan CalvoTo optimize In Vitro Fertilization (IVF) results in bovines by lowering costs, comparing the efficiency of Fetal Calf Serum (FCS) (high cost) with respect to bovine Follicular Fluid (bFF) (low cost) and by quantifying embryo production. Cumulus-Oocyte-Complexes (COC) obtained from a slaughter house, transported at 37°C in saline solution, were classified according to their quality in A, B, C and … …American Journal of Animal and Veterinary Sciences, Vol. 7, Issue 3 · 9 Aug 2012 · 7,839 accessesView PDFCite
Research ArticleOpen accessIn the abstractSynergistic Effect of Insulin on in vitro Development of Immature Bovine OocytesMojtaba Dashtizad, Abd Wahid Haron, Rosnina Yusoff et al.Problem statement: Development of efficient culture system to support embryonic development would be valuable when quality of produced embryos was important. However, the rate of bovine embryo production in vitro was still lower than expected. Present study, including of three experiments, was carried out to investigate the effect of insulin on nuclear maturation and subsequent development of immature bovine oocytes … …American Journal of Animal and Veterinary Sciences, Vol. 5, Issue 4 · 31 Dec 2010 · 10,433 accessesView PDFCite