Behavioural signs of oestrus during pregnancy in lactating dairy cows

被引：15

作者：

Dijkhuizen, TJ ^{[1
]}

vanEerdenburg, FJCM ^{[1
]}

机构：

[1] UNIV UTRECHT,FAC VET MED,DEPT HERD HLTH & REPROD,NL-3584 CL UTRECHT,NETHERLANDS

来源：

VETERINARY QUARTERLY | 1997年 / 19卷 / 04期

关键词：

D O I：

10.1080/01652176.1997.9694771

中图分类号：

S85 [动物医学（兽医学）];

学科分类号：

0906 ;

摘要：

Two herds of approximately 50 dairy cows were observed for oestrous behaviour for 6 weeks, 12 times a day for 30 minutes. It appeared that 3.08% of the pregnant cows showed oestrous behaviour during pregnancy (EBP) in such an intensity that they would have been considered in oestrus. With a less rigid oestrus detection threshold, 10.8% of the pregnant cows would have been considered to be in oestrus. Animals showed EBP during all months of pregnancy, but most of the behavior was observed in the middle of the gestation period.

引用

页码：194 / 196

页数：3

共 20 条

[1]

BERGE S., 1942, Zeitschrift fur Tierzuchtung und Zuchtungsbiologie, V52, P127

[2]

Chauhan F S, 1976, Indian Vet J, V53, P77

[3]

Choudhury G, 1965, Indian Vet J, V42, P581

[4]

Donald H. P., 1943, VET REC, V55, P297

[5]

ERB RE, 1985, J DAIRY SCI, V41, P267

[6] ESTRUS, ESTROUS CYCLES, OVULATION TIME, TIME OF SERVICE, AND FERTILITY OF DAIRY CATTLE IN LOUISIANA [J].

HALL, JG ;

BRANTON, C ;

STONE, EJ .

JOURNAL OF DAIRY SCIENCE, 1959, 42 (06) :1086-1094

[7]

KAIKINI AS, 1984, INDIAN J ANIM SCI, V54, P886

[8]

LAING JA, 1979, FERTILITY INFERTILIT, P22

[9]

MIRSKAJA LM, 1941, AN BREED ABST, V11, P23

[10]

NALBAUDOV AV, 1976, REPROD PHYSL MAMMALS, P288

← 1 2 →