Relationships Among Herd Life, Milk Production, and Calving Interval
نویسندگان
چکیده
منابع مشابه
Relationships Among Herd Life, Milk Production, and Calving Interval
Whether to select for longer life in the herd or shorter calving interval depends on the genetic and phenotypic relationships among herd life, amount of milk in first lactation, and calving interval. Herd life and average calving intmwal are essentially phenotypically uncorrelated. The phenotypic and genetic correlations of herd life and milk in first lactation ranged from .19 to .25 and from ....
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ژورنال
عنوان ژورنال: Journal of Dairy Science
سال: 1967
ISSN: 0022-0302
DOI: 10.3168/jds.s0022-0302(67)87613-6