猪采食调控机制研究进展  

Research Progress on Feed-intake Regulation of Pigs

作　　者：陈守云[1] 

机构地区：[1]川北医学院教务处,四川南充637000

出　　处：《中国畜牧兽医》2011年第9期24-29,共6页China Animal Husbandry & Veterinary Medicine

摘　　要：猪的采食量与其生长速度、生产性能息息相关。在保证猪健康生长的同时,尽可能地提高其采食量,是提高养猪生产效益的重要途径。猪的食欲和采食行为受到外界环境、饲养技术、自身物理特性、体内化学和代谢因子、中枢和外周信号因子的综合调控。下丘脑在整合各种信号从而发挥采食调控作用的网络中发挥着关键作用。分子生物学手段的应用使得采食信号因子的研究不断取得突破,NPY、CCK、SS、Orexin、Ghrelin等在下丘脑采食调控网络中的作用和信号途径已日渐明朗,而AMPK、mTOR和Leptin更是成为近年来的研究热点。作者从影响猪采食行为的因素、下丘脑的调控作用及影响采食行为的主效因子等方面展开论述,综述了当前国内外在猪采食调控方面的研究进展,针对存在的问题提出讨论,并对接下来的研究方向做出展望。Feed intake is highly relevant to the growth performance of pig.The improvement of feed intake is considered to be an important contributor to the increase of pig production.The appetite and intake behavior of pig are regulated by various central and peripheral factors,including feeding technique,living circumstance,chemo-factors and metabolic-factors.Hypothalamus plays a key role in integrating all these signals so as to regulate feed intake.Researches on intake signaling have achieved great improvement,owing to the implication of molecular methods,numerous signaling factors involved in the intake-net have been reported,among which AMPK,mTOR and Leptin have been most attractive to researchers in this area.The present paper summarized the factors influencing feed intake as well as the key role of hypothalamus in regulating feed intake,and probed molecular mechanism of feed intake.Questions involved and research direction were raised and discussed.

关 键 词：采食调控 AMPK MTOR 瘦素 猪 

分 类 号：S828[农业科学—畜牧学]