年龄是阴道内海绵浸渍黄体酮和马绒毛膜促性腺激素诱导Awassi母羊多胞胎有效性的决定因素

IF 1.9 Q2 VETERINARY SCIENCES

Veterinary Medicine International Pub Date : 2023-03-14 DOI:10.1155/2023/9800053

A. Daham, A. Jaber, Jabbar A. A. Al-Saaidi

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引用次数: 0

摘要

本研究旨在探讨年龄对阴道内孕激素浸渍海绵(IPIS)和马绒毛膜促性腺激素(eCG)对阿瓦西母羊多胎率的影响。试验选取活重35 ~ 40 kg、年龄2 ~ 5岁的成年母羊100只，按母羊年龄分为3组(n = 29、2 ~ 3岁;n = 34、3 ~ 4岁;n = 37, 4-5年)。所有母羊均经IPIS浸泡，注射克诺龙20 mg，持续14天，并在海绵停药时进行心电图(400iu, i.m)。所有治疗过的母羊都能发情(100%);2 ~ 3岁母羊缠绕率最高，3 ~ 4岁母羊缠绕率最高。母羊年龄与多胎率呈负相关。总之，使用IPIS和eCG进行发情同步程序和多胎分娩结果的Awassi母羊的最佳年龄是2-4岁。

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Age as a Determinant of the Effectiveness of Intravaginal Sponges Impregnated with Progestin and Equine Chorionic Gonadotropin for Multiple Births Induction of Awassi Ewes

The present study was conducted to evaluate the role of age in the effectiveness of intravaginal progestin-impregnated sponges (IPIS) along with equine chorionic gonadotropin (eCG) on the multiple birth rates of Awassi ewes. One hundred mature ewes (live weight was 35–40 kg and age 2–5 years) were allocated to three groups according to their ages (n = 29, 2-3 years;n = 34, 3-4 years; and n = 37, 4-5 years). All ewes were impregnated with IPIS, injected with 20 mg cronolone, for 14 days, and eCG (400 IU, i.m.) at sponges withdrawal. All treated ewes came to estrus (100%); the highest twining rate was recorded in ewes aged 2-3 years, while the highest triple rate were found in those aged 3-4 years. A negative correlation coefficient was recorded between the age of treated ewes and the multiple births. In conclusion, the best age of Awassi ewes for estrus synchronization programs and multiple birth outcomes using IPIS along with eCG is 2–4 years.

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来源期刊

Veterinary Medicine International Veterinary-Veterinary (all)

CiteScore

3.50

自引率

3.20%

发文量

审稿时长

17 weeks

期刊介绍： Veterinary Medicine International is a peer-reviewed, Open Access journal that publishes original research articles and review articles in all areas of veterinary research. The journal will consider articles on the biological basis of disease, as well as diagnosis, prevention, treatment, and epidemiology.