STUDIES ON ADAPTABILITY OF 3 BREEDS OF SHEEP TO A TROPICAL ENVIRONMENT MODIFIED BY ALTITUDE .7. SEXUAL ACTIVITY IN RELATION TO AGE OF RAM

被引：9

作者：

SYMINGTON, R

机构：

来源：

关键词：

D O I：

10.1017/S0021859600024618

中图分类号：

S [农业科学];

学科分类号：

09 ;

摘要：

引用

页码：179 / &

共 14 条

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[3]

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[4]

EATON ON, 1948, J ANIM SCI, V7, P449

[5]

HAFEZ E. S. E., 1953, EMPIRE JOUR EXPTL AGRIC, V21, P217

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[7]

LAING JA, 1955, FERTILITY INFERTILIT

[8]

PHILLIPS RW, 1936, BMAES 331

[9]

RICE VA, 1953, BBL

SYMINGTON, R .