Article
Characterization of days dry for United States Holsteins.
Journal of dairy science - 1 Mar 2005
Kuhn M T, Hutchison J L, Norman H D
Abstract excerpt
This research characterized days dry (DD) for modern US Holsteins. This included investigation of factors influencing DD, summarizing variation in herd means as well as within-herd variation, and estimation of parameters related to DD. Data consisted of records initiated before 2003 from cows first calving after 1996. A total of 459,075 records from 295,067 cows in 3527 herds were included. The overall mean DD...
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