日粮中添加亚麻籽油提高鸡肉中n-3PUFA含量的研究  

Using Dietary Linseed Oil to Increase N-3 Polyunsaturated Fatty Acids in Muscle of Broilers

作　　者：刘利晓[1,2] 徐彬[1] 王琳燚[1] 魏凤仙[1] 李绍钰[1] 赵晓青 郝国庆 舒畅[4] 张发旺[4] 

机构地区：[1]河南农业科学院畜牧兽医研究所,郑州450000 [2]河南省驻马店市畜牧局,驻马店463000 [3]河南大用集团,鹤壁458030 [4]河南省畜牧局,郑州450000

出　　处：《中国粮油学报》2009年第4期108-113,共6页Journal of the Chinese Cereals and Oils Association

基　　金：国家“十一五”科技支撑计划项目(2006BAD12B07-10);河南省农科院科研发展专项资金项目(200724)

摘　　要：选择216只21日龄罗斯308商品代肉用母雏,随机分为3组,每组6个重复,每个重复12只鸡。第1组为对照组,在玉米-豆粕型基础日粮上添加5%混合油,处理组分别在基础日粮中添加3%亚麻籽油(2组)和5%亚麻籽油(3组),试验期3周,旨在研究在日粮中添加不同水平的亚麻籽油对鸡肉中n-3PUFA含量和肉鸡生产性能影响。试验结果表明:与对照组相比,3%、5%亚麻籽油组肌肉组织中n-3C18:3、n-3C20:5和n-3PUFA含量显著提高(P<0.05),n-6/n-3比值显著降低(P<0.05),n-3C22:6水平则变化不大(P>0.05)。5%亚麻籽油组n-3PUFA总量显著高于3%亚麻籽油组(P<0.05),n-6/n-3比值低于3%亚麻籽油组(P>0.05)。n-3C18:3在胸肌和腿肌中的沉积量显著高于肝脏(P<0.05),n-3C20:5、n-3C22:6在胸肌和腿肌中的沉积量显著低于肝脏(P<0.05)。添加3%、5%亚麻籽油对肉鸡生产性能无显著性影响(P>0.05)。以上结果表明,肉鸡饲粮中使用亚麻籽油,可生产出n-3PUFA含量较高,n-6/n-3值较低,对人类健康有益的功能性鸡肉产品。An experiment was carried out to evaluate the effect of different dietary linseed oil level on the content of n - 3 polyunsaturated fatty acids （PUFA） in muscle and on the growth performance of broilers. Two hundred sixteen 21 - d - old Ross - 308 female broilers were randomly divided into three treatments, 6 repeats each treatment with 12 birds per repeat. Broilers were fed either corn - soybean meal diet （control group） or similar diet containing 3% linseed oil （group 2） and 5 % linseed oil （group 3） for 3 weeks. Results shows that compared with the control group, 3 % and 5 % dietary linseed oil significantly increase the contents of C18：3n - 3, C20：5n - 3 and n - 3PUFA （P 〈 0.05） and significantly lower the n - 6/n - 3 ratio in breast and thigh muscles （ P 〈 0.05）, while the amounts of C22： 6n - 3 is not influenced （ P 〉 0.05）. N- 3PUFA contents of breast and thigh muscles of broilers fed 5% linseed oil are significantly higher than those fed 3 % linseed oil （ P 〈 O. 05）, mad n - 6/n - 3 ratio is significantly lower than those fed 3 % linseed oil （ P 〉 0.05）. The contents of C18：3n-3 in breast and thigh muscles are significantly higher than livers （P 〈 0.05）, C20：5n- 3 and C22： 6n - 3 are significantly lower than livers （ P 〈 0.05）. The growth performance of the broilers is not influenced by different dietary treatments （ P 〈 0.05）. It is concluded that diet supplementation with linseed oil for broilers can produce chicken meat rich in n - 3PUFA and with lower n - 6/n - 3 ratio, which can benefit human health as a source of n - 3PUFA rich food.

关 键 词：亚麻籽油 肉鸡 n-3PUFA n-6/n-3 

分 类 号：S831.4[农业科学—畜牧学]