Genetic Factoes Affecting Conception Rate and Early Pregnancy Loss in Holstein Cattle
نویسندگان
چکیده
منابع مشابه
Factors Affecting Conception Rate
An analysis of dairy herd records to determine the cause of low reproductive efficiency usually leads to the conclusion that problems are centered in one of the following areas: breeding policy (intentionally waiting too long after calving for first service), estrous detection efficiency (missed heats), or conception rate. The challenge is to identify the factors responsible for the problem. On...
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ژورنال
عنوان ژورنال: Journal of Dairy Science
سال: 1961
ISSN: 0022-0302
DOI: 10.3168/jds.s0022-0302(61)89700-2