@article{MAKHILLJAVA2008791284,
    title = {Synchronization of Estrus Using FGA and CIDR Intravaginal Pessaries during the Transition Period in Awassi Ewes},
    journal = {Journal of Animal and Veterinary Advances},
    volume = {7},
    number = {9},
    pages = {1093-1096},
    year = {2008},
    issn = {1680-5593},
    doi = {javaa.2008.1093.1096},
    url = {https://makhillpublications.co/view-article.php?issn=1680-5593&doi=javaa.2008.1093.1096},
    author = {A.K. Zonturlu,F. Aral,N. Ozyurtlu and},
    keywords = {Ewes,progestagen,transition period,estrus induction},
    abstract = {The objective of this study was to investigate the efficiency of synchronization using different progesterone treatments during transition period from the non-breeding to the natural breeding season. Thirty-four non-lactating Awassi ewes were randomly assigned to two groups, treated with fluorogestone acetate (FGA group, n = 19) or controlled internal drug release devices (CIDR group, n = 15) for 12 days. After pessary and sponges removal, all ewes received an intramuscular injection of 300 IU. eCG. There was no significant differences between treatments for ewes in estrus (FGA: 84.2%, CIDR: 86.6%). The onset of estrus from progestagen treatments, FGA and CIDR groups was (mean±S.D.) 45.00±1.00 and 36.00±3.40, respectively. Interval from the cessation of treatment to the onset of estrus was significantly (p<0.05) longer in FGA, compared to the CIDR. The duration of the induced estrus period did not differ significantly between in 2 treatment groups. Pregnacy rate did not differ (p>0.05) between FGA (52.63%) and CIDR (60.00%). As a result, Estrus synchronization with FGA and CIDR is found to be similar, although the onset time of estrus varies with the use of FGA or CIDR.}
    }