动物营养学报2017，Vol.29Issue(7)：2237-2244,8.DOI:10.3969/j.issn.1006-267x.2017.07.004
高产母猪窝内体重变异的营养调控
Nutritional Regulation of Within-Litter Weight Variation for Hyperprolific Sows
摘要
Abstract
With the development of modern breeding technology, the live litter size of sows is increasing.However, it is accompanied by a larger variance of birth weight within a litter, resulting in increased before-weaning mortality and larger discrepancy of body weight at weaning.These consequences make it difficult to achieve higher nutritional and management efficiency and more economic benefits.In this paper, we summarized the primary factors affecting the within-litter variance of birth weight, discuss the effects and related mechanisms of dietary energy source, protein and amino acid levels and functional additives in order to reducing the within-litter variance of birth weight, which may provide a reference for improving the uniformity of newborn pigs through nutritional manipulation.关键词
初生仔猪/窝内体重变异/营养调控Key words
newborn pigs/within-litter weight variation/nutritional regulation分类
农业科技引用本文复制引用
原培强,车炼强,冯斌,李健,林燕,徐盛玉,吴德,方正锋..高产母猪窝内体重变异的营养调控[J].动物营养学报,2017,29(7):2237-2244,8.基金项目
国家自然科学基金项目(31472109) （31472109）
国家重点研发专项(2016YFD0500506) （2016YFD0500506）
