2024, Vol. 5, Issue 2, Part C
Efficacy of CIDR alone and in combination with PMSG on reproductive performance of local Iraqi ewes
Author(s): Ameer Mansour Mohamed and Saad Akram Hatif
Abstract: The aim of study ability of CIDR alone and in combination with PMSG in improving the fertility potential of the ewes, Determine the concentration of progesterone between difference period. Eighteen multiparous local Iraqi ewes aged between 3-4 years were randomly divided into three groups (n=6/ group). Ewes were synchronized by CIDR The total number of animals used in the experiment was Eighteen ewes, The animals were subdivided into three groups; Group1 (n=6) ewes treated with CIDR for 12 day and treated with a single dose of intramuscular injection of PMSG 500 IU at the time of CIDR removal. Group 2 (n=6) non pregnant ewes treated only by CIDR, which applied by intra-vaginal route for (12 days), then withdrawal. Group3 (n=6 ) ewes control without treatment throughout the study. The estrus response was significantly (p˂0.05) for the treatment groups compared to the control group, with a significant superiority p≤0.05 for the first treatment group, G1, compared to the second treatment group, G2, in both the response rate to the estrus synchronization programs, the rate of onset of estrus, and the duration of estrus, at 100%, 66%, 0%, and 35.50, 51, and 0 hours and 31.67, 29.50, and 0 hours for the three study groups G1, G2 and the control group for the three fertility. The results showed a clear significant superiority (p˂0.05) in progesterone levels in the 12-day period after treatment with progesterone in the G1 and G2 treatment groups compared to the control group, which did not show any change in progesterone levels in all three study periods. In addition to the convergence of progesterone levels in the first and last periods of the study (before treatment and at day of estrus). The results also showed a clear significant superiority (p˂0.05) in the level of progesterone in the 12-day period after treatment with progesterone in pregnant and non-pregnant ewes compared to the periods before treatment and after the end of the treatment period, which showed convergence in progesterone levels, and although the 12-day period showed an increase in the level of progesterone in non-pregnant ewes, but it was lower significantly (p˂0.05) than in pregnant ewes during the same aforementioned period. Regarding for the length of pregnancy and the length of labour, no significant differences (p˂0.05) were observed between the two treatment groups, which recorded very close values that did not exceed 149 days and 41.8 minutes for the periods of pregnancy and labour, respectively.
DOI: 10.33545/27080013.2024.v5.i2c.173
Pages: 213-220 | Views: 89 | Downloads:
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How to cite this article:
Ameer Mansour Mohamed, Saad Akram Hatif. Efficacy of CIDR alone and in combination with PMSG on reproductive performance of local Iraqi ewes. Acta Entomol Zool 2024;5(2):213-220. DOI: 10.33545/27080013.2024.v5.i2c.173
