Large Herd Management
نویسندگان
چکیده
منابع مشابه
Smallholder Dairy Herd Management in Kenya
Introduction Kenya has one of the most successful dairy industries in sub-Saharan Africa based on some 3 million cattle of mostly high grade Bos taurus dairy breeds and a relatively advanced milk marketing infrastructure. The main breeds for dairy production are Friesian, Guernsey, Ayrshire and their crosses with the local East African Zebu (EAZ). The EAZ population is estimated at about 10 mil...
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Replacement heifers, whether they are raised on the farm, purchased from other dairies, or raised by contract growers, are critical to herd productivity because they represent the future milking and breeding stock in all dairy operations. The goal should be to provide an environment for heifers to develop full lactation potential at the desired age with minimal expense. Animal health and well-b...
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One of the risks distinguishes urban projects from other projects is to purchase of property obstacles. The matter is of more significance in large projects. Issues with regard to possessing property obstacles, lack of accurate layout drawings for underground facilities and following probable changes in designs make it vital to have specific studies on risk management of such projects. So thi...
متن کاملImproving the Herd Management Using Genomic Information Improving within-herd selection
Genomic selection (GS) as theoretically introduced by Meuwissen et al. (2001) has been successfully implemented worldwide in dairy cattle breeding programs reflecting large populations, i.e., Holsteins, Fleckvieh, Jersey, and Brown Swiss, and has revolutionized conventional breeding schemes. Revolution of dairy cattle breeding programs via GS was the logical consequence due to the obvious possi...
متن کاملIn-depth pedigree analysis in a large Brazilian Nellore herd.
A large herd of Nellore cattle was evaluated using in-depth pedigree analyses. Taking into account the incomplete pedigree due to the use of multiple young sires for mating, the average inbreeding coefficient was calculated as 1.73% for the last generation, which was higher than the regular inbreeding coefficient (0.25%). The effective population size was estimated to be 114, 245, and 101 for t...
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ژورنال
عنوان ژورنال: Journal of Dairy Science
سال: 1964
ISSN: 0022-0302
DOI: 10.3168/jds.s0022-0302(64)88859-7