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170 results for “cattle”
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Research ArticleOpen accessIn the abstractAdaptation to High Grain Diets Proceeds Through Minimal Immune System Stimulation and Differences in Extracellular Matrix Protein Expression in A Model of Subacute Ruminal Acidosis in Non-lactating Dairy CowsB. W. McBride, O. AlZahal, M. A. Steele, L. DionissopoulosProblem statement: Subacute Ruminal Acidosis (SARA) is a metabolic disorder affecting approximately 20% of all dairy cattle in North America. Although the presence of SARA has been described for some time, the etiology of the disorder remains uncertain. For example, many animals diagnosed with SARA seem to remodel and adapt their epithelium to accommodate the stresses imposed by SARA, but … …American Journal of Animal and Veterinary Sciences, Vol. 7, Issue 2 · 25 Jul 2012 · 8,124 accessesView PDFCite
Research ArticleOpen accessIn the abstractGreenhouse Gas Emissions: Quantifying Methane Emissions from LivestockRafiu O. Yusuf, Zainura Z. Noor, Ahmad H. Abba et al.Problem statement: The rearing of animals for domestic consumption and export invariably lead to the production of methane as a product of digestion. This study investigated the emission of methane from Malaysian livestock between 1980 and 2008. Approach: Seven categories of animals identified were camel, buffalo, sheep, goats, horse, pigs and poultry. The estimation of methane was based on the … …American Journal of Engineering and Applied Sciences, Vol. 5, Issue 1 · 31 Jan 2012 · 9,543 accessesView PDFCite
Research ArticleOpen accessIn the abstractFlea Infestation in Farm Animals and its Zoonotic Importance in East-Azerbaijan ProvinceGaredaghi YagoobProblem statement: Most fleas infest their host temporarily then pass to another of the same kind, while others move from one to a different host species. Although the comprehensive list of fleas reported from Iran, but there still exists considerable gap in our knowledge of zoonotic aspect of flea infestation. The present study was undertaken to determine correlation between domestic … …American Journal of Animal and Veterinary Sciences, Vol. 6, Issue 4 · 13 Jan 2012 · 8,159 accessesView PDFCite
Research ArticleOpen accessIn the abstractImproving Performance of Replacement Heifers in Hot Arid Environment Under Intensive ManagementM. A. Razzaque, S. A. Mohammed, T. Al- Mutawa, M. BedairProblem statement: Imported Holstein Friesian dairy cattle are exposed to hot arid climate in feedlot management in Kuwait. Desert climate is extreme reaching high 45-50°C in summer and low -4ºC in winter at day and night respectively. High calf mortality, poor reproduction and milk yields were main constraints to viable dairying. The objectives of this study were to assess the … …American Journal of Animal and Veterinary Sciences, Vol. 4, Issue 4 · 31 Dec 2009 · 6,986 accessesView PDFCite
Research ArticleOpen accessIn the abstractPasture Productivity Depending on the Method of Pasture use in the Steppe Zone of Northern KazakhstanBalzhan Akhylbekova, Nurlan Serekpayev, Adilbek Nogayev, Bakhytbek ZhumabekUnsystematic grazing of animals and continuous use of pastures leads to their degradation and, accordingly, to a shortage of pasture forage for the production of competitive environmentally friendly livestock products. The proportion of productive grasses in grass covers is decreasing; therefore, there is an urgent need to preserve valuable plant species in pasture grass, restore the productivity of natural vegetation … …OnLine Journal of Biological Sciences, Vol. 22, Issue 4 · 3 Nov 2022 · 5,913 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 · 6,016 accessesView PDFCite
Research ArticleOpen accessIn the abstractAgricultural Mechanization in Niger: What Role do Animals Play?Warouma Arifa, Chaibou Mahamadou, Saley Adamou LaoualiThe intensification of agriculture through the use of animal energy has been used since colonial times. This study aims to analyze the level of mechanization in Niger while relying on the role played by animals used for farming in the regions of Maradi and Zinder (Niger Republic). Data collection was carried out between June and August 2020, using a questionnaire … …American Journal of Applied Sciences, Vol. 19, Issue 1 · 7 Feb 2022 · 6,952 accessesView PDFCite
Research ArticleOpen accessIn the abstractMeat Productivity of Hereford Breed Calves with the Carbohydrate Complex DietIrina Mironova, Vladislav Beresnev, Hamit Tagirov et al.In current conditions, we are increasing beef production, including through the organization of full-fledged feeding of growing young animals. The literature analysis indicates that the science of feeding contains a large set of experimental and practical data on the effect of feeding on the productivity of livestock. However, the questions about the influence of various types of feed additives on … …American Journal of Animal and Veterinary Sciences, Vol. 16, Issue 4 · 24 Dec 2021 · 6,196 accessesView PDFCite
Research ArticleOpen accessIn the abstractPrevalence of Listeria monocytogenes in Raw Cow's Milk in the Region of Batna, AlgeriaSabrina Rabehi, Bakir Mamache, Taha Mossadak Hamdi et al.The aim of this study is the detection of the presence of L. monocytogenes in raw milk in the region of Batna using the real-time polymerase chain reaction (real-time PCR) technique, in order to assess the riskrun by the consumer of raw milk in the study area. 65 milk samples were investigated for the detection of L. monocytogenes. The detection … …American Journal of Animal and Veterinary Sciences, Vol. 16, Issue 4 · 15 Oct 2021 · 7,002 accessesView PDFCite
Research ArticleOpen accessIn the abstractA Greater dose of Ractopamine Hydrochloride Enhances Feedlot Performance and Impacts Carcass Characteristics of Calf-Fed Holstein SteersJerilyn E. Hergenreder, Jonathon L. Beckett, Zachary K. Smith, Bradley J. JohnsonThe objective was to evaluate the effects of supplementing ractopamine HCl at the rate of 400 mg steer1 daily in the final 28 d of the feeding period on growth performance and carcass characteristics of Holstein steers. Steers (n = 1,498; initial BW = 547 kg) were randomly assigned to pens (10 pens/treatment) and to a treatment: (1) 0 mg∙steer1∙d1 … …American Journal of Animal and Veterinary Sciences, Vol. 16, Issue 1 · 24 Mar 2021 · 6,836 accessesView PDFCite