Application of an autoregressive process to estimate genetic parameters and breeding values for daily milk yield in a tropical herd of Lucerna cattle and in United States Holstein herds.

doi:10.3168/jds.S0022-0302(98)75831-X

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Article

Application of an autoregressive process to estimate genetic parameters and breeding values for daily milk yield in a tropical herd of Lucerna cattle and in United States Holstein herds.

Journal of dairy science - 1 Oct 1998

Carvalheira J G, Blake R W, Pollak E J, Quaas R L, Duran-Castro C V

Abstract excerpt

The objectives of this study were to estimate from test day records the genetic and environmental (co)variance components, correlations, and breeding values to increase genetic gain in milk yield of Lucerna and US Holstein cattle. The effects of repeated observations (within cow) were explained b...

Topics

Aging
Animals
Breeding
Cattle
Colombia
Dairying
Female
Genetic Variation
Lactation
Models, Genetic
Phenotype
United States

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