【摘要】 在蛋鸡饲料中分别添加8%、12%、16%、20%富含亚麻酸的紫苏籽,分析其对蛋黄中主要脂肪酸特别是ω-3、ω-6及ω-6/ω-3的影响,测定血脂变化。结果表明,添加紫苏14d后,各种脂肪酸含量趋于稳定;28d后,各添加组蛋黄脂肪中ω-3含量明显高于对照组(1 21%),差异极显著(p<0 01)。且以添加20%组含量最高(9 95%),但与16%组(9 86%)差异不显著(p>0 05)。ω-6有下降的趋势,但变化不显著(p>0 05),ω-6/ω-3由对照组的13 7分别降到1 98(8%)、1 67(12%)、1 44(16%)和1 47(20%),差异极显著(p<0 01)。添加紫苏后,母鸡血清胆固醇(TCH)、甘油三脂(TG)、极低密度脂蛋白(VLDL)及血清总脂有所降低,高密度脂蛋白胆固醇(HDL-C)升高,且以添加16%组效果最显著。总之,为提高蛋黄ω-3,改善ω-6/ω-3,降低血清TCH、TG、VLDL、总脂,降低成本,以添加16%为宜。更多还原

【Abstract】 In the diet of laying hens,8%,12%,16% and 20% perilla frutescens seeds abundanted in linolenic acid were separately added,the containing of ω-3, ω-6 and ratio of ω-6/ω-3 was studied, the change of serum lipid was analysed The results showed that all kinds of fatty acids tended to be stable after perilla frutescens seeds was added for 14 days After 28 days, the content of ω-3 fatty acid in the egg yolk in the experimental groups were extremely significant higher than the control group (p<001),and that of the 20% group was the highest (995%), but it had no significant difference with the 16% group (986%)(p>005)The content of ω-6 fatty acid tended to decrease,but the change was not significant (p>005).The ratios of ω-6/ω-3 in yolk were separately decreased to 198(8%),167(12%),144(16%)and 147 (20%) from 137 of the control group.The serum total cholesterol (TCH), serum triglyceride (TG),very low density lipoprotein (VLDL) and the total lipid decreased after perilla frutescens was added and high density lipoprotein cholesterol (HDL-C) increased.The 16% groups was the most significant Above all, in order to increase the content of ω-3 fatty acid,improve the ratio of ω-6/ω-3,decrease serum TCH,TG,VLDL and total lipid,and decrease cost,it was suggested that 16% perilla frutescens seeds was added to diet 更多还原