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Article

Analysis of test day yield data of Costa Rican dairy cattle.

Journal of dairy science - 1 Jan 1998

Vargas B, Perez E, Van Arendonk J A

Abstract excerpt

Estimates of variance components for test day records in an animal model that considered multiple traits over multiple lactations were calculated using REML methodology. Test day records were classified into 11 periods within first and later lactations. Missing ancestors in the relationship matrix were classified in genetic groups. Data were collected from Costa Rican dairy farms. Estimates of components for...

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Identifiers

PMID: 9493102
DOI: 10.3168/jds.S0022-0302(98)75574-2

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