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当前位置: 首页 > 文章 > 多重线性回归法测定猪内源磷排泄量及饲料磷真消化率的研究 畜牧兽医学报 2007,38 (7) 678-684
Position: Home > Articles > Endogenous Outputs and True Digestibility of Phosphorus Associated with Peanut Meal and Soybean Meal in Growing Pigs by Multiple Linear Regression Analysis Technique Chinese Journal of Animal and Veterinary Sciences 2007,38 (7) 678-684

多重线性回归法测定猪内源磷排泄量及饲料磷真消化率的研究

作  者：
左建军;汪儆;张铁鹰;张常明;冯定远;印遇龙;范明哲
单  位：
中国农业科学院北京畜牧兽医研究所;中国科学院亚热带农业生态研究所;华南农业大学动物科学学院
关键词：
线性回归法;生长猪;花生粕;豆粕;磷;内源排泄量;真消化率
摘  要：
本研究采用多重线性回归法测定生长猪内源磷排泄量及花生粕和豆粕磷的真消化率。选用6头健康大白×长白阉公猪为试验动物,平均体重为(24.8±1.42)kg。采用6×6拉丁方设计,设6个磷水平(0.09%、0.17%、0.26%、0.35%、0.43%、0.53%),以豆粕、葡萄糖、玉米淀粉等为基础,以花生粕为待测植物性饲料,配制半纯合试验日粮,花生粕和豆粕为磷唯一来源。日粮中添加0.35%Cr2O3作为外源指示剂。试验分6个试验期,每期8 d,6d适应期,2 d收粪期。结果表明,在以g/kg DMI为计量单位条件下,生长猪粪磷的排出量与日粮磷的摄入量呈线性关系(P=0.000 1),回归法测得生长猪内源磷的排泄量为0.526 6 g/kg DMI,花生粕磷的真消化率为28.00%,豆粕磷的真消化率为38.87%。分析粪磷来源发现,内源磷排泄量基本不变(P=0.13),而日粮来源粪磷随日粮含量的增加而增加(P=0.000 1),说明多重线性回归法可用于测定猪内源磷排泄量及非常规植物性饲料磷的真消化率;比较真消化率和表观消化率值说明,真消化率比表观消化率具有较好的重复性。
译  名：
Endogenous Outputs and True Digestibility of Phosphorus Associated with Peanut Meal and Soybean Meal in Growing Pigs by Multiple Linear Regression Analysis Technique
作  者：
ZUO Jian-jun1,WANG Jing 2,ZHANG Tie-ying2,ZHANG Chang-ming1,FENG Ding-yuan1,YIN Yu-long3,FAN Ming-zhe3(1.College of Animal Science,South China Agricultural University,Guangzhou 510642,China;2.Institute of Animal Science,Chinese Academy of Agricultural Sciences,Beijing 100094,China;3.Institute of Subtropical Agriculture,Chinese Academy of Sciences,Changsha 410125,China)
关键词：
regression analysis technique;growing pigs;peanut meal;soybean meal;phosphorus;endogenous outputs;true digestibility
摘  要：
Regression analysis technique was used to measure the fecal phosphorus(P) endogenous outputs and true P digestibility values with peanut meal and soybean meal in this study with growing pigs.Six Yorkshire×Landrace barrows,with average initial body weight of(24.8±1.42) kg,were fed in the metabolic cage.According to a 6×6 Latin square design,the six diets with soybean-cornstarch-glucose based experimental diet with peanut meal containing six P level(0.09%,0.17%,0.26%,0.35%,0.43%,0.53%) were formulated,in which the peanut meal and soybean meal were the only P source.Chromic oxide (0.35%) was included in the diets as digestibility marker.Each experimental period lasted 8 d with 6 d adaptation and 2 d collection of the feces.The results showed that the P endogenous outputs were 0.526 6 g/kg DMI,true P digestibility with peanut meal was 28.00%,and true P digestibility with soybean was 38.87% with regression analysis technique.

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