Study Different Protocols for Estrus Synchronization in Sheep Using the Vaginal Sponge and CIDR
Study Different Protocols for Estrus Synchronization in Sheep Using the Vaginal Sponge and CIDR
Sulake Fadhil Al-Zubaidi1*, Khawla A. Hussain2, Abdulamir A. Alzahid3
ABSTRACT
Estrus synchronization is one of the programs to increase the productivity of sheep in the world. The aim for this study was to compare between different protocols for estrus synchronization in sheep. A total of twenty-two Awasi ewes of 2-3 years of age were divided into 5 groups: Group I consisted of six ewes and were treated with Flurogestone Acetate Vaginal Sponge (40 mg) for 14 days. Group II was treated with sponge was soaked with 60 mg of Medroxyprogesterone acetate/sponge for 10 days. Group III was treated with sponge was soaked with 60 mg of Medroxyprogesterone acetate/sponge for 14 days. Group IV was treated with CIDR containing progesterone (0.3 g) for 10 days. Group V was treated with CIDR containing progesterone (0.3 g) for 14 days. After the removal of the sponges or CIDR, all animals in each group were injected with eCG 500 I.U. The incidence of estrus was 83%, 100%, 100%, 100%, and 75 % for the I, II, III, IV and V groups, respectively. The onset of estrus after removing vaginal sponges and CIDR were 44±4.51 hr. in group I, 52.25±0.50 hr. in group II, and 57.5±5.96 hr. in group III, 53.25±4.99 hr. in group IV and 43 ±6.40 hr. in group V. There were significant (p>0.05) differences between groups II, III, and IV when compared to control group I. According to the conception rate, ewes synchronized in group I showed 80% in group II 75%, in group III 25%, in group IV 100%, and finally, in group V 75% conception rate. It was concluded that using CIDR for 10 days with 500 IU of eCG is the best method for estrus synchronization with a high conception rate.
Keywords | Estrus, synchronizing, sheep, CIDR, sponge, eCG
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November 2024
Vol. 12, Sp. Iss. 1
