The effect of air pressure with cervical artificial insemination on the fertility of Awassi ewes synchronized with PGF2?
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Date
2010
Journal Title
Journal ISSN
Volume Title
Publisher
Veteriner Fakultesi Dergisi
Access Rights
info:eu-repo/semantics/closedAccess
Abstract
The aim of this study was to investigate the effect of air pressure on fertility during cervical artificial insemination with fresh semen in Awassi ewes. A total of 60 reproductively normal-cycling Awassi ewes (2-5 years old) were used in the experiment during the breeding season. All ewes were treated with the PG-7 days protocol consisting of two intramuscular doses of a PGF2? analogue administered 7 days apart. Animals were divided into two groups. The first group (n=30) was cervically inseminated (CAI). The second group (n=30) was cervically inseminated by means of an air pump (APCAI). Artificial inseminations were performed 48 h after the second PGF2? injection. Pregnancy was determined using ultrasonography on d 30 after AI. The pregnancy rate was found significantly higher in the APCAI group than in the CAI group (80.0% versus 46.7%) (P<0.01). The lambing rate was found to be greater in the group cervically inseminated with an air pump than in the group cervically inseminated with the conventional method (70.0 versus 46.7%). The insemination method used had a significant effect on lambing rate (P<0.05). Prolificacy was not affected by insemination methods (APCAI, 1.09; CAI, 1.14). It was concluded that cervical insemination with an air pump in Awassi ewes might improve clinical pregnancy rates by mechanisms yet to be defined.
Description
Keywords
Air pressure, Artificial insemination, Awassi ewe, Fertility
Journal or Series
Kafkas Universitesi Veteriner Fakultesi Dergisi
WoS Q Value
Scopus Q Value
Q3
Volume
16
Issue
1
