n-6/n-3多不饱和脂肪酸不同比例对扬州鹅生产性能和屠宰性能的影响  

Effects of Ratios of n-6/n-3 PUFA in Diet on Growth Performance and Carcass Performance of Yangzhou Geese

作　　者：喻礼怀[1] 王剑飞[1] 王梦芝[1] 王洪荣[1] 

机构地区：[1]扬州大学动物科学与技术学院,江苏扬州225009

出　　处：《中国家禽》2012年第23期18-22,共5页China Poultry

基　　金：江苏省自然科学基金项目(BK2012679);扬州市农业科技支撑计划(YZ2011071);江苏省科技支撑计划(BN2012029)

摘　　要：本试验旨在研究不同比例n-6/n-3多不饱和脂肪酸(PUFA)对扬州鹅生产性能和屠宰性能的影响。选取160只3周龄扬州鹅,随机分成4组,每组4个重复,每个重复10只。分别饲喂n-6/n-3PUFA的比例为3:1、6:1、9:1、12:1玉米-豆粕型日粮,在42、56、70日龄进行样品采集。结果显示:不同比例n-6/n-3PUFA对生长期扬州鹅日增重和饲料转化率无显著影响,对生长期扬州鹅全净膛率、半净膛率和屠宰率无显著影响;对产肉性能胸肌率和腿肌率有显著影响n-6/n-3PUFA比例为9:1的屠宰率比较稳定,产肉性能最好。试验结果表明,不同比例多不饱和脂肪酸对扬州鹅生产性能、全净膛率,半净膛率和屠宰率没有影响,n-6/n-3PUFA比例为9:1时可获得较佳的胸肌率和腿肌率。The paper was to study effects of dietary n-6/n-3 polyunsaturated fatty acid （PUFA） on growth performance, carcass performance of Yangzhou Geese at different growth stage. 160 healthy Yangzhou geese （similar weight） , 3-weeks-old, were randomly divided into 4 groups. Each group had four repeats with ten geese per repeat. They were fed on corn-soybean diet with n-6/n-3 PUFA ratios of 3： 1,6： 1,9：1 and 12： 1,respectively. The geese were slaughtered at 42, 56 and 70 days old, respectively. Results showed that n-6/n-3 PUFA had no significant effect on daily weight gain and feed conversion of Yangzhou geese at growth period. The different proportion of n-6/n-3 PUFA had no significant effect on slaughter percentage, semi-eviscerated percentage, eviscerated percentage. The slaughter percentage of 9：1 group was very stable. The breast meat yield and leg muscle yiehl had been significant affected with the different proportion of n-6/n-3 PUFA. It indicated that dietary n-6/n-3 PUFA had no effect on growth performance, slaughter percentage, semi-eviscerated percentage, eviscerated percentage, but could get good breast meat yield and leg muscle yield with n-6/n-3 PUFA ratios of 9：1.

关 键 词：n-6 n-3 PUFA 扬州鹅 生产性能 屠宰性能 

分 类 号：S831.5[农业科学—畜牧学]