Effects of CLA supplementation on laying performance and fatty acids of yolk in laying hens | 日粮中添加CLA对鹌鹑蛋品质和蛋黄脂肪酸组成的影响
2009
Li Yongzhu, Linyi Normal University, Linyi(China), College of Agriculture and Forestry | Chen Changxiu, Linyi Normal University, Linyi(China), College of Agriculture and Forestry
Chinese. 通过在日本鹌鹑日粮中添加共轭亚油酸（CLA），研究CLA对鹌鹑的蛋品质、蛋黄中的脂肪酸组成、n-6系列和n-3系列多价不饱和脂肪酸的比率（n-6／n-3）以及胆固醇含量的影响。试验将180只8周龄鹌鹑按单因子设计随机分为4组，分别在CP20％日粮中添加0，0．25％，0．5％及1．0％CLA，试验期为20周。结果表明：与对照组相比，蛋黄中C18：3和二十二碳六烯酸（DHA C22：6）的含量显著增加（P〈0．05）；亚油酸（C18：2）的含量差异不显著（P〉0．05）；花生四烯酸（C20：4）含量和n-6／n-3比率显著降低（P〈0．05）。蛋黄中胆固醇含量随CLA添加量的增加有下降的倾向，试验开始14d后0．5％、1．0％添加组与对照组相比显著下降（P〈0．05）。蛋黄中脂肪酸C18：3含量与CLA添加比率间关系为Y=3．8823X＋0．08（r=0．6191），日粮中CLA适宜的添加量为0．9％。[著者文摘]
Show more [+] Less [-]English. The experiment divided 180 quails which are 8 weeks old into four groups randomly and averagely, and added about 0, 0.25 %, 0.5 % and 1.0 % CLA to daily feed separately. The result indicated that, compared with the control group, 18：3 and 22 carbon six Olefine acids （DHA C22：6 ） content in egg - yolk increased remarkably （P 〈 0.05） ; the difference of Linoleic acid （C18：2） was not significant （P 〉0.05）. The Arachidonic acid （C20：4） and the n- 6/n- 3 ratio reduced remarkably （P〈0.05）. The relationship of the fatty acid C18：3 and the CLA added ratio in the egg- yolk is Y=3,882 3 X ＋ 0.08（r = 0.619 1）. The suitable recruitment of the CLA in daily diet was 0.9%.
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