中国畜牧杂志2012，Vol.48Issue(13)：60-65,6.
不同粉碎粒度的豆粕对断奶仔猪生长性能和养分消化率的影响
Effects of Soybean Meal with Different Particle Size on Growth Performance and Nutrients Digestibility of Weaned Piglets
摘要
Abstract
The experiments were conducted to study the effect of soybean meal with different particle size on growth performance and nutrient digestibility of weanling pigs. Eighty crossed-bred (Duroc xLandrace xYorkshine) piglets weaned at (26-28) day, with average weight (7.9± 0.7 )kg, were randomly assigned to four dietary treatments with five replicates and four piglets per pen. The groups received the same basal dietary composition. The piglets in control group were fed with the diet containing target particle size of 750μm soybean meal, The piglets in treatment 1,2,3 were fed with the diets containing target particle size of 150,30,6 |xm soybean meal. The results showed that there was significant effect of soybean meal with less than the particle size of 30μm on average daily gain of weaned piglet (P<0.05), average daily feed intake was improved (P>0.05), feed conversion ratio was significantly improved (P<0.05), the diarrhea incidence of weaning piglet was significantly reduced (P<0.05); The coefficient of total tract apparent digestibility for nitrogen and phosphorus, when soybean meal particle size was less than 30μm, was significantly increased comparing with the control and fine grinding in weaned piglet (P<0.05), the essential amino acids apparent digestibility was significantly improved (P<0.05). There was no significant effect of super-micronized soybean meal on energy digestibility (P=0.063) and dietary organic matter apparent digestibility (P= 0.082). It is concluded that soybean meal with less than the particle size of 30μm can significantly increase the utilization efficiency of dietary protein in weaned piglets, improve the growth performance and health status of weaned pigs, and increase the biological adaptation of soybean meal as a protein source of nutrition.关键词
豆粕/粉碎粒度/生长性能/养分消化率/断奶仔猪Key words
soybean meal/ particle size/ growth performance/ nutrients digestibility/ weaned piglets分类
农业科技引用本文复制引用
任守国,周安国,王之盛,刘光芒..不同粉碎粒度的豆粕对断奶仔猪生长性能和养分消化率的影响[J].中国畜牧杂志,2012,48(13):60-65,6.基金项目
教育部长江学者和创新团队发展计划资助项目(IR-T555) （IR-T555）
