摘要
选用长白×雅南杂交猪72头(体重(18.44±1.34)kg),考察了含15%麦麸的生长猪饲粮中以磷酸氢钙形式添加0、0.09%、0.18%、0.27%、0.36%无机磷(IP)和在玉米-豆粕对照饲粮中添加0.26%IP对生产性能、干物质(DM)、钙(Ca)、总磷(TP)表观消化率的影响。结果表明:与对照组相比,15%麦麸饲粮中添加不同水平的IP对平均日增重(ADG)、平均日采食量(ADFI)、饲料转化率(F/G)均无显著影响(P>0.05);DM、Ca、TP表观消化率随IP添加水平的提高而逐渐下降。15%麦麸不加无机磷组生产性能与对照组比较差异不显著(P>0.05),但DM、Ca、TP表观消化率分别提高5%、54.9%、32.4%(P<0.01)。回归分析表明:15%麦麸饲粮添加无机磷0.1%,生长猪生产性能最高。以生产性能为衡量指标,生长猪饲粮含15%麦麸可减少0.16%的无机磷。含麦麸的植物性饲粮具有节约无机磷的作用。
S:72(Landrace×Yanan)piglets(initial weight(18.44±1.34)kg)were employed to study the effects of various levels of inorganic phosphorus(IP)(0,0.09%,0.18%,0.27%,0.3%)added into growing pigs diets containing 15% wheat bran,and of 0.26% IP added into corn-soybean controled diets on performance,the apparent digestibilities of dietary dry mater(DM),calcium(Ca)and total phosphorus(TP).The results were as follows:Compared with the controled diets,the supplemental different levels of IP had no obvious effect on average daily gain(ADG),average daily feed intake(ADFI)and feed/gain(F/G)of piglets fed the in wheat bran diets(P>0.05);the apparent digestibilities of DM,Ca,TP were gradually decreased with the increasing dietary IP levels.The performance was not obviously significant between the wheat bran diet without supplemental IP and the controled diets(0.55%TP)(P>0.05),but the former had higher apparent DM,Ca,TP digestibilities than the later did(P<0.01).It was concluded that the maximum performance were obtained by supplying diets containing 15% wheat bran with 0.1% IP by regressive analysis.Based on the performance,plant diets containing 15% wheat bran can save 0.16% inorganic phosphorus for growing pigs.
出处
《动物营养学报》
CAS
CSCD
2004年第3期50-56,共7页
CHINESE JOURNAL OF ANIMAL NUTRITION
