An epidemiological study of disease, production and ...
|Title||An epidemiological study of disease, production and culling in Holstein-Friesian cows|
|Journal||Dissertation Abstracts International, B Sciences and Engineering|
|Abstract||Data on 2875 lactations from 32 herds were analysed. Diseases of the reproductive tract tended to occur together in the same cow as did diseases of the mammary system. Subclinical diseases (mastitis and ketosis) were found to have a substantial impact on milk production/day of life; several clinical diseases had beneficial effects on milk production. Effects of disease on the risk of a cow being removed from a herd were also determined..|
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