VARIATION IN PHYSICAL-ACTIVITY AS AN INDICATION OF ESTRUS IN DAIRY-COWS

被引：142

作者：

KIDDY, CA ^{[1
]}

机构：

[1] USDA, ARS, ANIM PHYSIOL & GENET INST, REPROD LAB, BELTSVILLE, MD 20705 USA

来源：

关键词：

D O I：

10.3168/jds.S0022-0302(77)83859-9

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：235 / 243

页数：9

共 9 条

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[3]

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[4]

FARRIS EJ, 1954, J AM VET MED ASSOC, V125, P117

[5] ESTRUS DETECTION AND ESTRUS DETECTION AIDS [J].

FOOTE, RH .

[6]

Hurnik J. F., 1975, Applied Animal Ethology, V2, P55, DOI 10.1016/0304-3762(75)90065-6

LAUDERDA.JW .

[8]

MORRIS NM, 1970, OBSTET GYNECOL, V35, P199

POWELL, TL .

JOURNAL OF THE BRITISH GRASSLAND SOCIETY, 1968, 23 (01) :98-+