Bulletin of the Faculty of Agriculture, Yamaguchi University
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Bulletin of the Faculty of Agriculture, Yamaguchi University Volume 29
published_at 1975
Studies on the Management of YAMAGUCHI University Farm. I. The Records of Reproduction and Lactation of Raising Cow
附属農場の経営管理に関する研究 : 第1報 附属農場における乳牛の繁殖および泌乳成績について
Yamane Hideo
Koga Keiichi
Oda Ryosuke
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The Records of reproduction and lactation of faculty of agriculture Yamaguchi university, between 23 years from 1953 to 1975, may be as follows: 1) On the coitus: The rate of pregnancy on 1-2 time of coitus was about 65%, it's rate was no good. 2) On the numbers calving: it's records of raising cow was no good. Many cows was 1-3 on the numbers calving, their economic life was done. 3) Lactation on the one stage
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