Reproductive efficiency of bulls in natural service: effects of male to female ratio and single- vs multiple-sire breeding groups. - Suppr | 超能文献

Reproductive efficiency of bulls in natural service: effects of male to female ratio and single- vs multiple-sire breeding groups.

作者信息

Rupp G P, Ball L, Shoop M C, Chenoweth P J

出版信息

J Am Vet Med Assoc. 1977 Oct 1;171(7):639-42.

Abstract

摘要

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