Buserelin Improves Ovulation-Embryo Synchrony Compared With hCG After eCG-Induced Superovulation in Donor Sows.

IF 1.7 3区农林科学 Q2 AGRICULTURE, DAIRY & ANIMAL SCIENCE

Reproduction in Domestic Animals Pub Date : 2026-10-01 DOI:10.1111/rda.70270

A Lopez-Jara, M Garcia-Canovas, H Gonzalez-Ramiro, M A Gil, C Cuello, H Rodriguez-Martinez, I Parrilla, E A Martinez

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Abstract

This study directly compares hCG and buserelin as ovulation-inducing agents following eCG-based superovulation in weaned donor sows, focusing on their practical impact on ovulation-embryo synchrony under field conditions. Fifty-five multiparous sows received 1000 IU eCG 24 h after weaning and were treated at onset of estrus with either 750 IU hCG or 10 μg BU. Embryos were recovered on Day 6 after estrus. Ovulatory response, embryo recovery, fertilization rate and viable embryo number did not differ between treatments. Embryo quality parameters were also similar. However, BU-treated sows exhibited improved ovulation-embryo synchrony, with a higher proportion of animals presenting embryos at the blastocyst stage compared with hCG-treated sows (p = 0.0051). In conclusion, BU maintains embryo yield and quality while improving ovulation-embryo synchrony compared with hCG in eCG-superovulated donor sows.

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与绒毛膜促性腺激素（hCG）相比，毛毛素可改善供母猪卵细胞诱导超排卵后的排卵-胚胎同步。

本研究直接比较了hCG和buserelin作为促排卵剂在断奶供母猪基于ecg的超排卵后的作用，重点研究了它们在野外条件下对排卵-胚胎同步的实际影响。55头经产母猪在断奶后24小时接受1000 IU eCG，并在发情开始时给予750 IU hCG或10 μg BU。发情后第6天回收胚胎。不同处理间的排卵反应、胚胎恢复、受精率和活胚数无显著差异。胚胎质量参数也相似。然而，与hcg处理的母猪相比，bu处理的母猪表现出更好的排卵-胚胎同步性，在囊胚期出现胚胎的动物比例更高（p = 0.0051）。综上所述，与hCG相比，BU维持了卵泡超排卵母猪的胚胎产量和质量，同时改善了排卵-胚胎同步。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Reproduction in Domestic Animals 农林科学-奶制品与动物科学

CiteScore

3.00

自引率

5.90%

发文量

238

审稿时长

4-8 weeks

期刊介绍： The journal offers comprehensive information concerning physiology, pathology, and biotechnology of reproduction. Topical results are currently published in original papers, reviews, and short communications with particular attention to investigations on practicable techniques. Carefully selected reports, e. g. on embryo transfer and associated biotechnologies, gene transfer, and spermatology provide a link between basic research and clinical application. The journal applies to breeders, veterinarians, and biologists, and is also of interest in human medicine. Interdisciplinary cooperation is documented in the proceedings of the joint annual meetings. Fields of interest: Animal reproduction and biotechnology with special regard to investigations on applied and clinical research.