The effect of hormone treatments (hCG and cloprostenol) and season on the incidence of hemorrhagic anovulatory follicles in the mare: A field study

被引:14
作者
Cuervo-Arango, J. [1 ,2 ]
Newcombe, J. R. [2 ]
机构
[1] Eliza Pk Stud, Kerrie, Vic, Australia
[2] Equine Fertil Clin, Brownhills, England
关键词
Anovulation; hCG; Induced cycle; Mare; Prostaglandin; OVULATION;
D O I
10.1016/j.theriogenology.2009.07.022
中图分类号
Q [生物科学];
学科分类号
07 ; 0710 ; 09 ;
摘要
The association between use of hormone treatments to induce estrus and ovulation and the incidence of hemorrhagic anovulatory follicles (HAFs) was studied in a mixed population of mares (Equus caballus) during two breeding seasons in a commercial breeding clinic. Mares treated with cloprostenol (CLO) were more likely to develop HAFs than were mares with spontaneous cycles (P < 0.001) or those treated with human chorionic gonadotropin alone (P = 0.08). There was no significant effect of season on the incidence of HAFs. The mean (+/- SEM) interval from CLO treatment to beginning of HAF development was 6.1 +/- 0.5 d. Age of mares with HAF cycles was not different (12 +/- 1.3 yr; P > 0.05) from that of mares with ovulatory cycles (10.5 +/- 1.5 yr). (C) 2009 Elsevier Inc. All rights reserved.
引用
收藏
页码:1262 / 1267
页数:6
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