膨化双低菜籽在哺乳母猪日粮中应用的研究(英文)  

Application of Expanded Double-Low Rapeseed in the Diets of Lactation Sows

作　　者：唐春艳[1] 齐德生[1] 张妮娅[1] 何学军[1] 

机构地区：[1]华中农业大学动物科技学院,武汉430070

出　　处：《动物营养学报》2007年第5期549-558,共10页CHINESE JOURNAL OF ANIMAL NUTRITION

基　　金：Programof Agricultural Scientific Garden of Science Depart ment,in Wuhan,Hubei province(2001EA760A13)

摘　　要：本文旨在研究膨化双低菜籽在哺乳母猪饲料中应用的适宜添加量。28头临产长×大哺乳母猪随机分成4组，每组7头，每个重复1头。根据NRC（1998）标准配制4种等能等蛋但添加不同水平膨化双低菜籽的日粮，试验期为28 d。结果表明：（1）添加10%膨化双低菜籽组平均日采食量（ADFI）显著高于对照组（P〈0.05）；添加量为20%时，ADFI显著降低（P〈0.05）；（2）与对照组相比，20%膨化双低菜籽组母猪失重显著增加（P〈0.05）；（3）20%膨化双低菜籽组仔猪28日龄窝重、0~28日龄平均窝日增重显著下降（P〈0.05）；（4）10%的膨化双低菜籽组粗纤维和总磷消化率显著高于对照组（P〈0.05）；对照组营养物质的消化率显著高于20%膨化双低菜籽组（P〈0.05）；（5）各试验组血清中AST、ALT、T3、T4和TSH含量与对照组无显著差异（P〉0.05）；（6）添加量达到20%时，乳固形物、乳蛋白和乳脂肪含量与对照组有显著差异（P〈0.05）。本试验结果表明，哺乳母猪日粮中膨化双低菜籽的添加比例以10%~15%为宜，最高不宜超过20%。The objective of this study is to explore the optimal proportion of expanded double-low rapeseed to add directly to lactation diets. Twenty-eight Landrace x Large White prepartum sows were assigned randomly into four groups in this experiment, with 7 in each group, and 1 as the replicate. Four diets with the same level of protein and energy were formulated to meet the NRC （1998） nutrient requirements through gradual increment of expanded double-low rapeseed levels （0%, 10%, 15%, 20%）. The experiment period lasted for 28 days. The results showed that： 1） the average daily feed intake of the group of 10% expanded double-low rapeseed level was significantly higher than that of the control group, while the average daily feed intake of the group of 20% expanded doublelow rapeseed level was significantly lower than that of the control group （P〈0.05）; 2） the body weight losses of 20% expanded double-low rapeseed group was significantly increased than that of the control group （P〈0.05） ; 3） the litter weight at the age of 28 days and litter weight gain from the age of 0 to 28 days of 20% expanded doublelow rapeseed level had significantly increased （P〈0.05）; 4） the crude fiber and phosphorus digestibility of the group of 10% expanded double-low rapeseed level were significant higher than that of the control group （P〈0.05） ; and the apparent digestibility of nutritional ingredients in the control group was significantly higher than the group of 20% expanded double-low rapeseed level （P〈0.05） ; 5） it was found that the percentage of ALT, AST, T3, T4 and TSH had no significant differences among all groups versus the control （P〈0.05）; 6） the milk solid, milk pro- tein, milk fat in group of 20% expanded double-low rapeseed level was significant different （P〈0.05） than those in the control （P〈0.05）. It was concluded that the optimum proportion of expanded double-low rapeseed added to the diets of lactation sows was from 10% to 15%, and the maximum proportion

关 键 词：膨化双低菜籽 哺乳母猪 日粮 生产性能 血液 奶 消化率 

分 类 号：S828.5[农业科学—畜牧学]