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Title

Different estrous induction protocols during non-breeding season in Assaf ewes

Year: 1397
COI: JR_SJVA-7-5_001
Language: EnglishView: 312
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Authors

Hatem Atalla - Depatment of Veterinary Medicine, An-Najah National University, Nablus, Palestine.
Baher Abu Gazal - Ministry of Agriculture, Palestine.

Abstract:

This experiment was conducted to investigate the effect of pregnant mare serum gonadotrophin (PMSG) levels and the progestagen method on estrus response, onset and duration of estrus, lambing rate and litter size. A total of 20 Assaf ewes were used in the experiment, which was conducted during April, a month that is considered as non-breeding period in Palestine. Ewes were treated with intravaginal sponges containing 60 mg medroxyprogesterone acetate (MAP). Seven days later, sponges were removed and 10 new sponges were inserted to 10 of the experimental ewes. Following withdrawal of sponges at day 14, 5 ewes from each treatment groups were injected intramuscularly with a pregnant mare serum gonadotrophin (PMSG) at level of 300 or 600 IU. The results showed that level of PMSG and progesterone application methods had no significant effects on the tested parameters. This finding indicated that low level of PMSG can be applied for estrus synchronization. Results showed that using one sponge followed by a 300 IU dose of PMSG could induce estrus successfully with low cost comparing to application of two sponges and high doses of PMSG.

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This Paper COI Code is JR_SJVA-7-5_001. Also You can use the following address to link to this article. This link is permanent and is used as an article registration confirmation in the Civilica reference:

https://civilica.com/doc/995147/

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If you want to refer to this Paper in your research work, you can simply use the following phrase in the resources section:
Atalla, Hatem and Abu Gazal, Baher,1397,Different estrous induction protocols during non-breeding season in Assaf ewes,https://civilica.com/doc/995147

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