摘要
２００只１５日狄高鸡随机分成４组，对照组（Ⅰ）喂饲基础日粮，试验组（Ⅱ，Ⅲ，Ⅳ）在基础日粮中分别添加０．２５％，０．５０％，１．００％（果寡糖）（ＦＯＳ），测定各组１５～５６日龄成活率、体重、饲料转化率。结果表明：各组成活率分别为８６％，９６％，９６％和９２％，试验组间差异不显著，Ⅱ，Ⅲ组与Ⅰ组差异极显著（Ｐ＜００１）。各组腹泻分别为１５．６％，４．９％，１．５％和１０．２％，彼此间差异极显著（Ｐ＜０．０１）。各组１５～５６日龄采食量分别为３６１７．４，３４８９．０，３３８６．２，３４６３．４ｇ，各组体增重分别为１４０７，１４５２，１５１１，１４５４ｇ，各组料重比分别为２．５７，２．４０，２．２４和２．３８。Ⅱ，Ⅲ，Ⅳ组平均体重分别比对照组提高２７％（Ｐ＜０．０５），６．５％（Ｐ＜０．０１）和２．７％（Ｐ＜０．０５）。肉鸡日粮中ＦＯＳ添加水平以０．２５％～０５０％为宜，对鸡的生长和饲料报酬的提高有明显的促进作用。当ＦＯＳ添加水平为１００％时，肉鸡腹泻增加，饲料报酬和体增重均低于添加水平为０．５０％的组。
Two hundred Tegel broilers (fifteen days posthatch) were randomly assigned to 4 groups.Fructooligosaccharide (FOS)was added to the diet at the level of 0,0.25,0.50,1.00% to the 4 groups respectively.Mortality,weigh gain,feed effeciency were recorded from 15 to 56 days.The mortality for each group was 15%,4%,4%,8%,respectively.The difference between group Ⅱ,Ⅲ and group Ⅰ was very significant ( P <0.01).The occurance rate of diarrhea in each group was 15.6%,4.9%,1.5% and 10.2% respectively.The weight gain was 1407,1452,1511,1454 g respectively.The feed effeciency was 2.57,2.40,2.24,2.38 respectively.Comparing to the control,group Ⅱ to Ⅳ had the body weight gain increase by 2.7% ( P <0 05),6.5%( P <0 01) and 2.7% ( P <0 05) respectively.The feeding trails showed that the optimal FOS adding level was 0 25% to 0 5% which had a beneficial effect on the increase of body weigh gain and feed effeciency.Too high FOS administration level (1%) caused diarrhea,thus decreased broilers production performance.
出处
《浙江农业学报》
CSCD
1999年第2期85-87,共3页
Acta Agriculturae Zhejiangensis
关键词
果寡糖
单胃动物
营养
肠道菌群
鸡
饲料
fructooligosaccharide
monogastric animal
nutrition
intestinal microflora
