Effects of immunization against inhibin alpha-subunit on ovarian structures, pregnancy rate, embryonic and fetal losses, and prolificacy rate in goats where estrus was induced during the non-breeding season

文献类型： 外文期刊

第一作者： Rehman, Abdul

作者： Rehman, Abdul;Arshad, Usman;Riaz, Amjad;Sattar, Abdul;Ahmad, Ejaz;Akhtar, Muhammad Saleem;Ahmad, Tanveer;Arshad, Usman;Khan, Jawaria Ali;Mohsin, Imran;Shi, Zhendan

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关键词： Immunization against inhibin alpha-subunit; Ovarian dynamics; Fertility; Prolificacy rate; Beetal goats

期刊名称：ANIMAL REPRODUCTION SCIENCE （ 影响因子：2.145； 五年影响因子：2.281 ）

ISSN： 0378-4320

年卷期： 2021 年 224 卷

页码：

收录情况： SCI

摘要： The objectives of the study were to determine the dose-dependent effects of active immunization against inhibin alpha-subunit (AIINHA) on ovarian dynamics, concentrations of progesterone (P-4), pregnancy rate (PR), embryonic and fetal losses (EFL), and prolificacy during the non-breeding season when there was imposing of a progestin-based treatment regimen to induce estrus in Beetal goats. Goats (n = 30) were randomly assigned into following groups: 1) saline (G-CON-0 mg; n = 10), 2) small dose (G-AIINHA-0.5 mg; n = 10), and 3) large dose (G-AIINHA-1 mg; n = 10). The primary administration of inhibin immunogen was administered at Day -48, followed by another administration at Day -20, and subsequently there was induction of estrus using a progestin based treatment regimen that included a single administration of progestin-containing sponge and PGF(2 alpha) at Day -8. The sponge was removed, and GnRH was administered at Day -3 followed by breeding (Day 0) at standing estrus. Results indicated mean diameter of the follicles, size of pre-ovulatory follicles and corpora lutea, and post-breeding P-4 concentrations were greater (P < 0.05) in the goat does of the G-AIINHA-0.5 than G-CON-0 group. The PR, and EFL, however, did not differ (P> 0.05) among groups, whereas prolificacy rate was greater (P = 0.04) in goat does of the G-AIINHA-0.5 than G-CON-0 groups. The data from this study indicate G-AIINHA-0.5 is the recommended dose of inhibin immunogen to enhance the reproductive performance during non-breeding season in Beetal goats when estrus is induced using a progestin-based treatment regimen.

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