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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

作者： Rehman, Abdul 1 ; Ahmad, Ejaz 2 ; Arshad, Usman 1 ; Riaz, Amjad 1 ; Akhtar, Muhammad Saleem 2 ; Ahmad, Tanveer 2 ; Kha 1 ;

作者机构： 1.Univ Vet & Anim Sci, Fac Vet Sci, Dept Theriogenol, Lahore 54000, Pakistan

2.Bahauddin Zakariya Univ, Fac Vet Sci, Dept Clin Sci, Multan 60800, Pakistan

3.Univ Florida, Dept Anim Sci, Gainesville, FL 32611 USA

4.Univ Vet & Anim Sci, Dept Vet Med, Lahore 54000, Pakistan

5.Univ Vet & Anim Sci, Dept Livestock Prod, Lahore 54000, Pakistan

6.Jiangsu Acad Agr Sci, Inst Anim Sci, Lab Anim Improvement & Reprod, Nanjing 210014, Peoples R China

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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