The new society for theriogenology breeding soundness evaluation system.

被引：52

作者：

Hopkins, FM

Spitzer, JC

机构：

[1] UNIV TENNESSEE,DEPT ANIM SCI,KNOXVILLE,TN 37901

[2] CLEMSON UNIV,DEPT ANIM DAIRY & VET SCI,CLEMSON,SC

来源：

VETERINARY CLINICS OF NORTH AMERICA-FOOD ANIMAL PRACTICE | 1997年 / 13卷 / 02期

关键词：

D O I：

10.1016/S0749-0720(15)30341-8

中图分类号：

S85 [动物医学（兽医学）];

学科分类号：

0906 ;

摘要：

In 1993, The Society for Theriogenology published revised standards for breeding soundness evaluation of bulls. These revised standards replaced the old semen score format with minimum acceptable scores for scrotal circumference (varies with age), motility (30% or fair), and morphology (70%).

引用

页码：283 / &

页数：12