摘要
随着全球气候变暖,温室效应加剧以及生产高度集约化,环境温度升高引起的公猪热应激,对生猪产业造成了不利的影响。鉴于此,文章综述了热应激对种公猪繁殖性能的影响,主要表现为种公猪性欲下降和精液品质降低(精液体积减少、精子形态变化、精子活力降低和畸形率增加),并进一步探讨了热应激影响种公猪繁殖性能的相关生理机制,详述了睾丸支持细胞紧密连接结构、AMPK信号通路、生殖激素分泌和细胞凋亡等生理调控机制,以期为缓减并消除热应激造成的不良影响提供科学理论支持。
With the global warming,increased greenhouse effect and the highly centralized production,the heat stress(HS)caused by high ambient temperature has a negative impact on pig production and reproduction.Many studies have reported heat stress resulted in decreasing sexual desire and bringing down semen quality,such as the reduction of semen volume and sperm motility,morphological changes of sperm and increased rate of abnormal sperm.Four physiological mechanisms were found to be involved in relative regular process,which were the tight junction formed by sertoli cell,AMPK signaling pathway,reproductive hormone secretion and cell apoptosis.These results are valuable to contribute to study how to reduce or eliminate the bad impacts of heat stress in practice.
作者
闫益波
焦福林
李文刚
YAN Yibo;JIAO Fulin;LI Wengang(Institute of Animal Husbandry and Veterinary Sciences,Shanxi Academy of Agricultural Sciences,Taiyuan 030032,China)
出处
《养猪》
2020年第4期41-44,共4页
Swine Production
基金
山西省应用基础研究计划项目(201901D111453)
山西省重点研发计划项目(201603D221023-1)。
关键词
热应激
种公猪
繁殖性能
heat stress
breeding boars
reproductive performance
作者简介
闫益波(1979-),男,山西运城人,副研究员,博士,主要从事猪营养、环境与繁殖技术研究工作.E-mail:yibo10679@163.com;通讯作者:李文刚,研究员,主要从事生猪健康养殖技术研究工作.E-mail:liwg81508@163.com。
