نتایج جستجو برای: cattle health

تعداد نتایج: 1024883  

Journal: :Journal of animal breeding and genetics = Zeitschrift fur Tierzuchtung und Zuchtungsbiologie 1997
J P Gutierrez J Cañon F Goyache

SUMMARY Estimates of variance components for birth weight, weaning weight and average daily gain were obtained comparing different animal and sire univariate models for an important local beef cattle breed. Problems encountered with models involving maternal effects were discussed. Direct and maternal heritabilities were respectively 0.32 and 0.13 for birth weight, 0.60 and 0.30 for weaning wei...

Journal: :Revue scientifique et technique 2001
D V Cousins

Bovine tuberculosis, caused by Mycobacterium bovis, is a well-known zoonotic disease which affects cattle world-wide. The public health risk has been alleviated in many countries by the introduction of pasteurisation, but the disease continues to cause production losses when poorly controlled. The Office International des Epizooties classifies bovine tuberculosis as a List B disease, a disease ...

2012
H. Guyot

Introduction Trace elements are essential in human and animal’s nutrition. They play a major role in health, immunity and reproduction. The production of milk or meat as well as the housing and management conditions of high-performing animals can generate oxidative stress and health troubles in cattle. Some trace elements and vitamins have an anti-oxidative action and increase immunity. The mos...

H Kamyabi I SHarifi M Atapour M Harandi fasihi R Fotohiardakani S Soliman banaei

Background & Aims: Cryptosporidiosis is one of the most important parasitic zoonoses of human and animals. This infection is common in mammals and caused by the coccidian parasites of the genus Cryptosporidium. The Present study was designed to determine the epidemiology of Cryptosporidium infection in cattle in Kerman by using conventional morphological as well as molecular methods for molecul...

Journal: :Journal of animal science 2012
G Arnott D Roberts J A Rooke S P Turner A B Lawrence K M D Rutherford

The prenatal period is of critical importance in defining how individuals respond to their environment throughout life. Stress experienced by pregnant females has been shown to have detrimental effects on offspring biology in humans and a variety of other species. It also is becoming increasingly apparent that prenatal events can have important consequences for the behavior, health, and product...

2015
N.R. Noyes K.M. Benedict S.P. Gow C.W. Booker S.J. Hannon T.A. McAllister P.S. Morley

BACKGROUND Mannheimia haemolytica is an important etiological agent in bovine respiratory disease. OBJECTIVES Explore risk factors for recovery of susceptible and resistant M. haemolytica in feedlot cattle and explore associations with health outcomes. ANIMALS Cattle (n = 5,498) from 4 feedlots sampled at arrival and later in feeding period. METHODS Susceptibility of M. haemolytica isolat...

2014
Younes Zaki

The present study was conducted from January 2013 and February, 2013 to find out microfilaria as well as Trypanosomiasis prevalence in cattle in Tangier in Morocco in relation to livestock health as per PCV counts. The findings demonstrate that Trypanosoma parasites were missing, conversely, microfilaria parasites were present. The prevalence level of microfilaria in the cattle was 6.5% (p<0.05...

2014
Ravindra Reddy Kalyana Chakravarthi

India is a subtropical country, wherein the climate is of variable type. A shelter is required both in summer as well as in winter to counter the various vagaries of adverse climate and to provide a comfortable environment to the animals. The principle functions of any system of housing for dairy cattle are: (1) Provision of health sustaining and comfortable environment to different categories ...

Journal: :New Zealand veterinary journal 2016
Richard A Laven

Description: Thoroughly updated to reflect recent changes in the industry, Bovine Medicine, 3rd Edition, offers practicing large animal veterinarians and veterinary students a comprehensive reference to core aspects of contemporary cattle health and husbandry. New edition of a classic text, featuring thoroughly rewritten text, with coverage shifted to the core aspects of everyday cattle practic...

2000
Jayson L. Lusk Ted C. Schroeder

The number of meat recalls has increased markedly in recent years. This research examines the impact of beef and pork recall announcements on nearby daily live cattle and lean hog futures market prices, respectively. Results indicate medium-sized beef recalls that are of serious health concerns have a marginally negative impact on short-term live cattle futures prices. However, results are not ...

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید