Effects of equine corionic gonadotropin on the semen characteristics of Zel Rams in nonbreeding season
Message:
Abstract:
Objective of this study was to investigate the effect of equine corionic gonadotropin on semen characteristics in Zel rams in nonbreeding season. Eighteen Zel adult rams were randomly divided into three equal groups, control and two treatment groups. 1 milliliter of 0.9% saline was injected into each ram in the control group, whereas equine corionic gonadotropin was administered Intramuscular at a single dose of 400 IU and 600 IU to each ram in the two equine corionic gonadotropin treatment groups. Semen samples were taken by an electroejaculator from all rams 10 minutes after injection. Equine corionic gonadotropin did not alter semen volume in comparison with the control values. Mass activity, sperm motility and total sperm number increased significantly (P<0.05) in equine corionic gonadotropin group compared with the control group; In general, exogenous 600 IU equine corionic gonadotropin increased mass activity, total sperm number, lived sperm and sperm concentration. This hormone can be used with mentioned doses for the purpose of breeding in nonbreeding season.
Article Type:
Research/Original Article
Language:
Persian
Published:
Journal of Veterinary Laboratory Research, Volume:6 Issue:2, 2014
Pages:
135 - 141
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