Genomic selection for feed efficiency in dairy cattle
نویسندگان
چکیده
منابع مشابه
Genomic Selection be the Key to Improving Feed Efficiency in Dairy Cattle ?
The efficiency of feed utilization on dairy farms can be influenced by a variety of practices that are beyond the scope of this paper, including many aspects of the harvesting, storage, mixing, and delivery of feed components, as well as the grouping of animals according to nutritional needs. Two practices that will be addressed are: 1) improvement of the biological efficiency of lactating cows...
متن کاملGenomic Selection and Reproductive Efficiency in Dairy Cattle
Thomas E. Spencer1, Peter J. Hansen2, John B. Cole3, Joseph Dalton4, and Holly Neibergs1 1Department of Animal Sciences, Washington State University, Pullman, WA 99164 2Department of Animal Sciences, University of Florida, Gainesville, FL 32611 3USDA‐ARS, Animal Genomics and Improvement Laboratory, Beltsville, MD 20705 4Department of Animal and Veterinary Science, University of Idaho, Caldwell,...
متن کاملConsiderations for Improving Feed Efficiency in Dairy Cattle
Intensive selection of sires is possible by using artificial insemination; coupled with accurate measurement of a potential sire’s genetic value, this has markedly improved genetics for easily measured traits like milk production and type traits. Increased milk production has in turn increased gross feed efficiency through dilution of maintenance. Additional genetic gains in feed efficiency wou...
متن کاملGenomic selection for feed efficiency traits
Introduction Feed costs comprise the majority of variable expenses in beef cattle systems making feed efficiency an important economic consideration within the beef industry (Koch et al ., 1963; Dickerson et al ., 1974) . Aside from the direct economic impact of this trait complex at the individual producer level, the projections of global population growth provide extra pressure for efficient ...
متن کاملGenotyping strategies for genomic selection in small dairy cattle populations.
This study evaluated different female-selective genotyping strategies to increase the predictive accuracy of genomic breeding values (GBVs) in populations that have a limited number of sires with a large number of progeny. A simulated dairy population was utilized to address the aims of the study. The following selection strategies were used: random selection, two-tailed selection by yield devi...
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ژورنال
عنوان ژورنال: Animal
سال: 2014
ISSN: 1751-7311
DOI: 10.1017/s1751731113001687