前期生长发育受阻育肥猪的补偿生长  

The Compensatory Growth of Early Unthrifty Pjgs during Finishing stage

作　　者：陈友慷 王岩[1] 邓修玲[1] 李治伦 潘其清 刘大祥 

机构地区：[1]西南民族学院畜牧兽医系,八七四三三部队

出　　处：《西南民族学院学报（自然科学版）》1994年第1期45-48,共4页Journal of Southwest Nationalities College(Natural Science Edition)

摘　　要：以前期生长发育受阻的育肥猪为试验组．正常猪为对照组，两个试验的结果表明，改善饲养条件后，试验组生长速度明显提高，试验１试验组（ｎ＝５）９月龄体重４０．８千克，日增重６８９．１克比对照组提高２３．１％（Ｐ＜０．０１）；试验２试验组（ｎ＝６０）７月龄体重５０．７千克，日增重６５４．８克，比对照组提高１５．６％（Ｐ＜０．０１）；试验组每日采食风干料明显增加，实验１和实验２分别提高２４．６％和１１．８％：试验组每增重１千克耗ＤＥ和ＣＰ实验１减少８．８７％和１１．８％，实验２减少３．７％和４．１％（Ｐ＜０．０１）．体重９０千克左右屠宰，试验组膘厚、后腿比例和脂肪率减少（Ｐ＜０．０５），但瘦肉率提高（Ｐ＜０．０５）．Two experiments are conducted to evaluate effects of improving nutrition on thegrowth of unthrifty pigs.Unthrifty pigs(Landrace×Chenghua)are used as treatment groups(n=5and 60) and normal pigs as control groups(n= 5 and 30).The results show that the growth of pigs intwo treatment sroups apparently accelerated after the improvement of feeding.In exp.1, the averageboody weigh and daily gain of pigs aged 9 months are 40.8 kg and 689.1g,respectively, The averagedaily gain increases by 23.1%as compared with that of control group(P<0.01). In exp. 2,theabove inentioned indexes of trattment pigs aged 7 months are 50.7kg and 654.8g,respectively. Thedaily gain is 15.6%more than that of control group (P<0.01).The intack of dry feed of treatmentgroups in exp. 1 and exp.2 increasee 24.6%and 11.8%,respectively. But DE and CP consumptionper kg gain in weight of treatment groups decreases by 8.87%and 11.8% for exp. 1 and by 3.7%and 4.1%for exp.2(p<0.01).Three treatment plgs (about 90 kg body weight) are slaughtered atthe end of exp.2,thefat thickness,ratio of rear leg and fat percentage decrease(P<0.05),but leanmeat percentage increases( p<0.05 );

关 键 词：补偿生长 育肥猪 生长发育受阻 猪 

分 类 号：S828.6[农业科学—畜牧学]