Ovarian response after a GnRH challenge in seasonally anestrous ewes

被引：11

作者：

Rubianes, E ^{[1
]}

de Castro, T ^{[1
]}

Ungerfeld, R ^{[1
]}

Meikle, A ^{[1
]}

Rivero, A ^{[1
]}

机构：

[1] Fac Vet, Dept Fisiol, Montevideo, Uruguay

来源：

CANADIAN JOURNAL OF ANIMAL SCIENCE | 1997年 / 77卷 / 04期

关键词：

GnRH; progesterone; ovary; anestrous; ultrasonography; ewes;

D O I：

10.4141/A97-068

中图分类号：

S8 [畜牧、动物医学、狩猎、蚕、蜂];

学科分类号：

0905 ;

摘要：

To study the ovarian response of seasonally anestrous Corriedale ewes to a gonadotropin releasing hormone challenge, daily transrectal ultrasonography or laparotomy were performed and luteinizing hormone and progesterone profiles were determined. Of the responding ewes (8/17), three ovulated and formed a healthy corpus luteum and five formed large luteinized follicular cysts that secreted low progesterone levels for 2 to 3 d. Therefore, the study of progesterone profiles alone could lead to erroneous interpretations of the ovarian response to GnRH challenge in sheep.

引用

页码：727 / 730

页数：4

共 13 条

[1] Oestrus synchronization in ewes: The effect of combining a prostaglandin analogue with a GnRH agonist (buserelin) [J].