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Intravaginal insemination depth influences fertility outcomes in Indian red jungle fowl (Gallus gallus murghi)

Abstract : The depth of intravaginal insemination to achieve optimum fertility with frozen-thawed semen is highly species specific in birds and differ even in breed and/or strains of a species. Therefore, study was designed to evaluate the influence of intravaginal insemination depths (2 and 4 cm) on fertility outcome in Indian red jungle fowl. Semen collected from eight mature cocks was pooled, diluted in extender and cooled to 4 degrees C. Glycerol (20%) was added to chilled semen, equilibrated for 10 min and cryopreserved. After 3 days of storage, frozen semen was thawed in water bath at 37 degrees C for 30 s. After glycerol removal, intravaginal Inseminations were performed at the depth of 2 and 4 cm. The no. of fertilized eggs (31.4 +/- 1.6 vs. 27.7 +/- 1.8), fertility rate (65.7 +/- 3.6 vs. 58.8 +/- 4.0), no. of hatched chicks (27.8 +/- 1.9 vs. 23.5 +/- 1.6), hatchability of set eggs (58.8 +/- 4.3 vs. 49.7 +/- 3.2) and hatchability of fertilized eggs (88.4 +/- 2.8 vs. 84.3 +/- 2.2) were recorded higher with intravaginal depth of 4 cm compared to 2 cm. It is concluded that intravaginal insemination at the depth of 4 cm enhances the fertility outcomes of the frozen-thawed Indian red jungle fowl semen.
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Submitted on : Tuesday, May 26, 2020 - 6:26:53 AM
Last modification on : Monday, November 22, 2021 - 4:45:48 PM

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Bushra A. Rakha, Muhammad S. Ansari, Shamim Akhter, Ali Akhter, Elisabeth Blesbois. Intravaginal insemination depth influences fertility outcomes in Indian red jungle fowl (Gallus gallus murghi). Animal Biotechnology, Taylor & Francis: STM, Behavioural Science and Public Health Titles, 2021, 32 (4), pp.526-530. ⟨10.1080/10495398.2020.1714634⟩. ⟨hal-02622711⟩

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