Joint Evaluation of Survival and Fertility in Dairy Cattle with a Linear Model
نویسندگان
چکیده
There is an intricate relationship between milk production, fertility and survival of cows, which is further confounded by management decisions on the farm. Holsteinization and selection for high milk production can be associated with reduction in cow fertility (Pryce et al., 1998; Silvia, 1998; Harris and Winkelman, 2000) because of its impact on physiological factors affecting reproduction such as energy balance, ovarian function, heat detection and conception in dairy cows (Buckley et al., 2000; Snijders et al., 2001; Westwood et al., 2002).
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