Genetic aspects of common health disorders and measures of fertility in Holstein Friesian dairy cattle

A - Papers appearing in refereed journals

Pryce, J. E., Veerkamp, R. F., Thompson, R., Hill, W. G. and Simm, G. 1997. Genetic aspects of common health disorders and measures of fertility in Holstein Friesian dairy cattle. Animal Science. 65 (3), pp. 353-360.

AuthorsPryce, J. E., Veerkamp, R. F., Thompson, R., Hill, W. G. and Simm, G.
Abstract

The purpose of this study was to estimate genetic parameters for measures of fertility and several health disorders in dairy cows. Data consisted of 33732 records, of which 9163 were on heifers, on 305-day milk yield, health disorders and inseminations. Measures of fertility were calculated from calving and insemination dates and included calving interval, days to first service and conception to first service. Health disorders included milk fever, mastitis and lameness. Genetic and phenotypic (co)variances were estimated using restricted maximum likelihood. Heritability estimates for both health disorders and fertility traits were low, ranging from 0·003 to 0·080. All genetic correlations between 305-day milk yield and health and fertility traits, in cows and heifers together, were antagonistic implying that selection for milk yield may have caused a deterioration in health and fertility. The unfavourable correlation between milk yield and health and fertility traits, plus the economic importance of the latter, suggests that future breeding goals should be expanded to include some health disorders and fertility.

Year of Publication1997
JournalAnimal Science
Journal citation65 (3), pp. 353-360
Digital Object Identifier (DOI)doi:10.1017/S1357729800008559
Open accessPublished as non-open access
Funder project or code207
445
Project: 141673
Output statusPublished
Publication dates
Online02 Sep 2010
Copyright licensePublisher copyright
ISSN1357-7298
PublisherCambridge University Press (CUP)

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