Sex Ratio of Calves from Insemination of Bovine Spermatozoa Separated by Free-Flow Electrophoresis
نویسندگان
چکیده
منابع مشابه
Time of insemination affects the sex ratio of Japanese Black cow offspring Page heading Sex ratio of calves rates after artificial insemination Authors, Affiliations and Addresses
This study was conducted to assess whether varying the time of artificial insemination (AI) after detection of estrus influences the sex ratio of Japanese Black cows offspring. Data were collected from 1,829 inseminated cows, of which 753 gave birth to calves, over a period of two and a half years. The animals were divided in two groups: the early AI group (3 h after estrus detection) and late ...
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ژورنال
عنوان ژورنال: Nihon Chikusan Gakkaiho
سال: 1989
ISSN: 1346-907X,1880-8255
DOI: 10.2508/chikusan.60.409