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International Journal of Current Microbiology and Applied Sciences (IJCMAS)
IJCMAS is now DOI (CrossRef) registered Research Journal. The DOIs are assigned to all published IJCMAS Articles.
Index Copernicus ICI Journals Master List 2018 - IJCMAS--ICV 2018: 95.39 For more details click here
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National Academy of Agricultural Sciences (NAAS)
NAAS Score: *5.38 (2020)
[Effective from January 1, 2020]
For more details click here

ICV 2018: 95.39
Index Copernicus ICI Journals Master List 2018 - IJCMAS--ICV 2018: 95.39
For more details click here

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Original Research Articles

PRINT ISSN : 2319-7692
Online ISSN : 2319-7706
Issues : 12 per year
Publisher : Excellent Publishers
Email : editorijcmas@gmail.com / submit@ijcmas.com
Editor-in-chief: Dr.M.Prakash
Index Copernicus ICV 2018: 95.39
NAAS RATING 2020: 5.38

Int.J.Curr.Microbiol.App.Sci.2018.7(6): 2078-2085
DOI: https://doi.org/10.20546/ijcmas.2018.706.245


The Effects of Different Doses of Equine Chorionic Gonadotropin on Induction of Estrus and Reproductive Patterns in Assaf Ewes out of Breeding Season
Hatem Atalla*
Department of Veterinary Medicine, Faculty of Agriculture and Veterinary Medicine, An-Najah National University, Nablus, Palestine
*Corresponding author
Abstract:

This experiment was conducted to investigate the effect of equine chorionic gonadotropin (eCG) levels on estrus response, onset and duration of estrus, lambing rate and litter size in Assaf ewes. A total of 80Assaf ewes were used in the experiment which was conducted during April, 2016, a month that is considered as non-breeding period in Palestine. Ewes were treated with intravaginal sponges containing 60 mg medroxyprogesterone acetate (MAP). Following withdrawal of sponges at day 14, 30ewes from each treatment groups were injected intramuscularly with 300 or 600 IU (eCG), while the control group (n=20) receive nothing. The results showed that level of eCG had no significant effects on the tested parameters. This finding indicated that low level of eCG can be successfully applied for estrus synchronization in Assaf breed out of the breeding season. Results showed that using sponge followed by a 300 IU dose of eCG could induce estrus successfully with low cost comparing to application of high doses of eCG.


Keywords: Assaf, Ewe, Estrus, Progesterone, eCG
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How to cite this article:

Hatem Atalla. 2018. The Effects of Different Doses of Equine Chorionic Gonadotropin on Induction of Estrus and Reproductive Patterns in Assaf Ewes out of Breeding Season.Int.J.Curr.Microbiol.App.Sci. 7(6): 2078-2085. doi: https://doi.org/10.20546/ijcmas.2018.706.245