Relationship between health disorders and production traits of Holstein cows in the Czech Republic
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The objective of this study was to evaluate the relationships among several health disorders: milk fever, retained placenta, metritis, ovarian cysts, clinical mastitis and lameness, and the productive performance of dairy cows. Milk fever had a significant influence on milk yield in 100 days of lactation and on FCM yield in 305 days, endometritis occurrence affected milk yield in 305 days of lactation and 305 days FCM production, ovarian cysts had a significant effect on milk yield in 100 and 305 days of lactation and 305 days FCM production. Twice and more mastitis occurrence related to higher level of milk production.
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