THE EFFECT OF SEASON AND SUCKLING ON EMBRYO QUALITY FROM SUPEROVULATED WELSH BLACK COWS

被引：5

作者：

BROWN, CM

AXFORD, RFE

WILLIAMS, G

WILSON, IBH

OWEN, JB

机构：

[1] School of Agricultural and Forest Sciences, University of Wales, Bangor

来源：

ANIMAL REPRODUCTION SCIENCE | 1991年 / 25卷 / 03期

关键词：

OVULATION RATE; CATTLE; GONADOTROPIN; REPRODUCTION; FOLLICLES; PROLACTIN; MORTALITY;

D O I：

10.1016/0378-4320(91)90013-P

中图分类号：

S8 [畜牧、动物医学、狩猎、蚕、蜂];

学科分类号：

0905 ;

摘要：

The effect of suckling on embryo quality from superovulated Welsh Black cows was investigated. Three groups of cows, one dry and two suckling, were superovulated and their embryos recovered in two seasons (summer and autumn). The number of viable embryos recovered was significantly greater (P = 0.007) in summer than in autumn. Significant effects of season (P = 0.03) and suckling (P = 0.05) on the percentage of viable embryos recovered were detected with dry cows flushed in summer giving the best quality embryos. Neither factor significantly affected the total number of embryos recovered.

引用

页码：181 / 187

页数：7

共 27 条

[1] GENETIC AND HORMONAL FACTORS AFFECTING SUPEROVULATION [J].