哺乳期使用绒毛膜促性腺激素优化产后母猪繁殖性能:综述。

IF 1.6 4区 农林科学 Q2 AGRICULTURE, DAIRY & ANIMAL SCIENCE Animal Reproduction Pub Date : 2024-07-15 eCollection Date: 2024-01-01 DOI:10.1590/1984-3143-AR2023-0118
Monike Willemin Quirino, Carolini Schultz, Michele Dos Passos Dezordi Franz, Thomaz Lucia, Arthur Martelli, Paulo Bayard Dias Gonçalves, Rafael da Rosa Ulguim, Bernardo Garziera Gasperin, Ivan Bianchi
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引用次数: 0

摘要

用绒毛膜促性腺激素治疗哺乳母猪可控制其断奶后的繁殖功能,尽管在哺乳期间会出现发情现象。本文综述了哺乳期使用马绒毛膜促性腺激素和人绒毛膜促性腺激素(分别为 eCG 和 hCG)对控制断奶母猪发情和排卵的潜在效果。在产后 24 和 48 小时内使用 1,000 IU hCG 可诱导受试母猪排卵,但排卵率可能不稳定。在泌乳第二周后使用两种绒毛膜促性腺激素进行联合治疗,可提高妊娠率:1,500 IU eCG 加 500 - 1,000 hCG;或 1,000 IU eCG 加 1,000 IU hCG。在泌乳末期使用 eCG(1,000 - 2,000IU)可能会导致可接受的发情表达和排卵率,但对妊娠率的益处不大。泌乳期对绒毛膜促性腺激素治疗的后续反应可能会受到治疗期、泌乳期哺乳频率以及断奶至发情间隔期间公猪暴露程度的影响。由于在家畜繁殖管理中使用类固醇激素受到限制,因此更好地了解这种无类固醇治疗的效率越来越重要。
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Use of chorionic gonadotropins during lactation to optimize postpartum sow reproductive performance: a review.

Treating lactating sows with chorionic gonadotropins may allow controlling their post-weaning reproductive function, despite the occurrence of anestrous during lactation. This article reviews the potential effectiveness of treatment with both equine and human chorionic gonadotropins (eCG and hCG, respectively) during lactation on the control of estrus expression and ovulation in weaned sows. The use of 1,000 IU hCG at 24 and 48 h postpartum may induce ovulation in the treated sows, but the ovulation rate may be variable. Pregnancy rates may be improved with combined treatment after the second week of lactation with both chorionic gonadotropins: 1,500 IU eCG plus 500 - 1,000 hCG; or 1,000 IU eCG plus 1,000 IU hCG. Treatment with eCG (1,000 - 2,000 IU) at the end of lactation may result in acceptable estrus expression and ovulation rates, although with marginal benefit for pregnancy rates. The subsequent response to treatments with chorionic gonadotropins during lactation is likely influenced by the treatment period, the suckling frequency during lactation, and the boar exposure during the weaning-to-estrus interval. A better understanding of the efficiency of such steroid-free treatments is increasingly relevant due to the constraints of the use of steroid hormones in livestock reproductive management.

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来源期刊
Animal Reproduction
Animal Reproduction AGRICULTURE, DAIRY & ANIMAL SCIENCE-
CiteScore
2.30
自引率
11.80%
发文量
49
审稿时长
70 days
期刊介绍: Animal Reproduction (AR) publishes original scientific papers and invited literature reviews, in the form of Basic Research, Biotechnology, Applied Research and Review Articles, with the goal of contributing to a better understanding of phenomena related to animal reproduction. The scope of the journal applies to students, researchers and practitioners in the fields of veterinary, biology and animal science, also being of interest to practitioners of human medicine. Animal Reproduction Journal is the official organ of the Brazilian College of Animal Reproduction in Brazil.
期刊最新文献
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