摘要
４８０只１日龄北京红鸡蛋用母雏随机分为８个处理组，每个处理４个重复，每个重复１５只鸡。玉米－豆粕型试验日粮分为３个磷水平，即ＴＰ＝０．５％、０．６％、０．７％，在ＴＰ＝０．５％时，每公斤日粮分别添加５００ＦＴＵ、７５０ＦＴＵ、１０００ＦＴＵ植酸酶，在ＴＰ＝０．６％时，每公斤日粮分别添加５００ＦＴＵ、７５０ＦＴＵ植酸酶。结果不同处理间０～６周龄雏鸡平均日增重差异极显著（Ｐ＜０．０１），而日饲料消耗量及饲料转化率差异不显著（Ｐ＞０．０５）：从血液指标看，不同处理间血磷、血钙、碱性磷酸酶（ＡＬＰ）差异均不显著，但血磷低的处理组，一般ＡＬＰ水平相对较高。
One experiment was conducted to evaluate the effect of dietary phytase on the growth performance and blood index of layer chicken. 480 sexed 1-day-old chickens were randomly ar- ranged to eight treatment with four replicates and 15 chicken per replicate. Three kinds of basal diet were fed, with TP=0.5%, 0.6%, 0.7%. In addition, phytase 500, 750, 1000FTU/Kg were added to TP=0. 5% basal diet; 500 and 750 FTU/Kg were added to TP=0. 6% basal di- et; Thus resulting in 8 treatments. The difference of average weight growth among the treat- ments is significant (P<0.01), but the feed consumption and feed convention is no significant (P>0.05). The level of plasma calcium, plasma phosphorus and alkaline phosphotase .ALP) , was unaffected by treatment, where as chicken of treatment with low plasma phosphorus had higher plasma ALP activity.
出处
《北京农学院学报》
1998年第3期51-57,共7页
Journal of Beijing University of Agriculture
