摘要
母体是仔猪胚胎期和初生时唯一的营养来源,也是哺乳期主要的营养源。妊娠期和泌乳期母体的营养和体况不仅影响繁殖性能和泌乳性能而且直接决定仔猪的生长。妊娠期添加纤维日粮能升高母猪血液VFA浓度,特别是乙酸浓度,它可以直接合成乳脂,提高乳汁能量。在妊娠后期和哺乳期调整母猪饲料组成可以改善产奶量和乳成分,从而影响仔猪生长性能。本文从仔猪的生理特点、日粮养分尤其是纤维和脂肪对母猪泌乳、繁殖性能和仔猪生长的影响以及调控仔猪生长的分子机理等方面进行了综述。
The maternal nutrition is the only nutrient source of embryo of pigs and newborn piglet as well as suckling pigs. Maternal nutrition and body condition not only affect reproduction and lactation performance but also determine the growth rate of piglets. The fiber diet in gestation can increase volatile fatty acids concentrations in blood of sows, especially increase blood acetic acid content which can immediately synthesize milk fat, and hence improve the energy level of milk. Change in ingredients of diets for sows in late gestation and lactation may enhance milk production and improve milk composition, and further improve the growth performance of piglets. In this paper, authors reviewed the effect of dietary ingredient especially fiber and fat on reproduction, lactation, growth of pigs and involved molecular mechanism.
出处
《中国畜牧杂志》
CAS
北大核心
2006年第7期42-44,共3页
Chinese Journal of Animal Science
基金
教育部高等学校博士学科点专项科研基金(20010335052)
关键词
畜牧学
母乳
能量
分子机理
仔猪生长
animal science
sow milk
energy
molecular mechanism
growth of piglets
