Article
Prediction of energy balance from milk traits of Holsteins in Japan.
Animal science journal = Nihon chikusan Gakkaiho - 1 Jan 2000
Nishiura Akiko, Sasaki Osamu, Tanigawa Tamako, Kubota Asuka, Takeda Hisato, Saito Yuriko
Abstract excerpt
We predicted the energy balance (EB) of Holstein cows in Japan from milk traits obtained by herd testing. Records covered 156 lactations of 102 cows. The number of artificial inseminations was highest, and the first conception rate was lowest in the low-EB group. Four prediction models were developed-for the whole lactation and for the early, middle, and late stages of lactation-with 20 variables, covering days...
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