摘要
选取125日龄,体重为60kg左右的杜×长×大三元去势肥育猪32头,随机分为4组,每组8头,公母各半。对照组添加2%猪油,3个试验组分别添加3%亚麻油、3%鱼油和1.5%亚麻油+1.5%鱼油,研究日粮中不同来源脂肪酸对育肥猪生长性能和猪肉脂肪酸组成的影响。结果表明:1)日粮中添加不同油脂对猪生长性能无显著影响;2)日粮中添加3%亚麻油、3%鱼油以及1.5%亚麻油+1.5%鱼油组,可以使猪肉中的C18∶3分别提高236.9%(P<0.01)、27.1%(P>0.05)和204.9%(P<0.01);C20∶5分别提高142.4%(P<0.01)、732.9%(P<0.01)和360.5%(P<0.01);C22∶5分别提高24.0%(P>0.05)、40.5%(P<0.05)和36.4%(P<0.05);C22∶6分别提高5.6%(P>0.05)、222.2%(P<0.01)和136.9%(P<0.01);总n-3PUFA的含量提高131.2%(P<0.01)、317.2%(P<0.01)和223.0%(P<0.01);3)各试验组猪肉中总n-3PUFA的含量显著提高,n-6/n-3的值显著降低。
Thirty two pigs （125-day-old） of DurocxLandracexLarge Yorkxia with 60 kg body weigt were allotted to 4 groups （4 male and 4 female） to study effects of dietary polyunsaturated fatty acids （PUFA） with different sources on growth performance and pork fatty acids composition in the finishing pigs.The control group was added 2 % lard and the treated groups were added 3 % linseed oil,3 % fish oil and 1.5 % linseed oil＋1.5 % fish oil respectively,The results showed that： 1 ）There were no differences in growth performance for every group.2）C18：3 content in muscle of the treated groups was increased 236.9 %（P 〈 0.01）,27.1%（P 〉 0.05） and 204.9 %（P 〈 0.01） respectively;C20：5 （EPA） was increased 142.4 %（P 〈 0.01 ）,732.9 %（P 〈 0.01） and 360,5 %（P 〈 0.01 ）respectively;C22：5 （DPA）was increased 24.0 % （P 〉 0.05）,40.5 %（P 〈 0.05） and 36.4 %（P 〈 0.05） respectively;C22：6 （DHA） was increased 5.6 %（P 〉 0.05）, 222.2 %（P 〈 0.01 ） and 136.9 %（P 〈 0.01 ） respectively.3）The total n-3 PUFA content in muscle significantly increased, the n-6/n-3 significantly decreased than that of control groups.
出处
《中国饲料》
北大核心
2007年第9期27-30,共4页
China Feed
基金
河南省农业科学院科研发展专项资金项目
项目编号:1050515
关键词
多不饱和脂肪酸
猪
生长性能
猪肉
polyunsaturated fatty acids
pig
growth performance
pork
