AGES AT CALVING AND CALVING INTERVALS FOR DAIRY-CATTLE IN THE UNITED-STATES

被引：33

作者：

NIEUWHOF, GJ

POWELL, RL

NORMAN, HD

机构：

[1] UNIV MARYLAND,DEPT ANIM SCI,COLLEGE PK,MD 20742

[2] USDA ARS,BELTSVILLE AGR RES CTR,ANIM IMPROVEMENT PROGRAMS LAB,BELTSVILLE,MD 20705

来源：

JOURNAL OF DAIRY SCIENCE | 1989年 / 72卷 / 03期

关键词：

D O I：

10.3168/jds.S0022-0302(89)79160-8

中图分类号：

S8 [畜牧、动物医学、狩猎、蚕、蜂];

学科分类号：

0905 ;

摘要：

引用

页码：685 / 692

页数：8

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