饲粮能量对后备母猪初情期启动的调控作用  

Regulation of Dietary Energy on Onset of First Estrus in Replacement Gilts

作　　者：陈永辉[1] 李铁军[2] 肖勇[1] 伍小松[1] 李玉莲[1] 范志勇 

机构地区：[1]湖南农业大学动物营养研究所,饲料安全与高效利用教育部工程研究中心,长沙410128 [2]中国科学院亚热带农业生态研究所,长沙410125

出　　处：《动物营养学报》2011年第6期914-918,共5页CHINESE JOURNAL OF ANIMAL NUTRITION

基　　金：国家自然科学基金项目(30700579);湖南省教育厅重点项目(09A041);湖南省高校科技创新团队支持计划

摘　　要：母猪营养状况对生殖机能有着重要影响,初情期启动与饲粮能量状况、后备母猪的最低体脂储备是其进入初情期的前提条件。通过科学的营养调控措施,有效满足母猪对饲粮能量的需求,是确保母猪发情正常启动及其后的繁殖周期正常的基本条件。本文主要对母猪发情机制进行阐述,立足调控饲粮中的能量水平和来源2个方面,综述了饲粮能量状况对母猪发情的影响及相关机制,以期为母猪发情营养调控技术的研究提供参考。Nutritional status of gilts exerts a critical influence on reproductive function.onset of first estrus is closely related to dietary energy levels.The attainment of a minimum threshold for body fat is necessary for puberty onset.Efficiently satisfied dietary energy needs for replacement gilts through scientific nutritional regulatory measures is a basic factor to ensure normal onset of first estrus and breeding cycle.To provide some references for nutritional regulatory technologies of onset of first estrus for replacement gilts,the paper mainly reviewed the effects of dietary energy status on estrus of gilts and related mechanisms,through introducing the mechanisms of estrus and focusing on the regulation of dietary energy sources and levels.

关 键 词：能量 后备母猪 初情期启动 

分 类 号：S828[农业科学—畜牧学]