Feng Yulong, Dai Guotao, Han Xue, Li Meijuan, Zhao Degang, Wu Jiahai, Wu Yongbao, Wen Zhiguo
Institute of Animal Husbandry and Veterinary Medicine, Guizhou Academy of Agricultural Sciences, Guiyang 550005, China.
Plant Conservation Technology Center, Guizhou Key Laboratory of Agricultural Biotechnology, Guizhou Academy of Agricultural Sciences, Guiyang 550006, China.
Foods. 2023 Jan 8;12(2):287. doi: 10.3390/foods12020287.
The objective was to determine the effects of supplementing duck diets with Eucommia ulmoides oliv. leaf powder (EUL). Laying ducks (n = 480) were randomly allocated into 4 experimental treatments and fed diets containing 0, 1, 2, or 4% EUL. Dietary inclusion of EUL had no effect (p > 0.05) on laying performance or egg quality, but linearly increased (p < 0.05) total plasma protein, globulin, and HDL-C concentrations with concurrent reductions (p < 0.05) in plasma concentrations of cholesterol and LDL-C. Eggs laid by ducks receiving EUL had yolks with linearly higher phenolic concentrations (p < 0.05) but lower cholesterol concentrations (p < 0.05). EUL supplementation in duck diets significantly reduced n-6: n-3 PUFA ratio by enriching n-3 fatty acids in yolks (p < 0.05) with no changes in n-6 PUFA (p >0.05).
目的是确定在鸭日粮中添加杜仲叶粉（EUL）的效果。将480只产蛋鸭随机分为4个试验处理组，分别饲喂含0%、1%、2%或4% EUL的日粮。日粮中添加EUL对产蛋性能或蛋品质没有影响（p>0.05），但血浆总蛋白、球蛋白和高密度脂蛋白胆固醇（HDL-C）浓度呈线性增加（p<0.05），同时血浆胆固醇和低密度脂蛋白胆固醇（LDL-C）浓度降低（p<0.05）。采食EUL的鸭所产蛋的蛋黄中酚类物质浓度呈线性升高（p<0.05），但胆固醇浓度降低（p<0.05）。在鸭日粮中添加EUL可通过增加蛋黄中n-3脂肪酸的含量显著降低n-6:n-3多不饱和脂肪酸（PUFA）比例（p<0.05），而n-6 PUFA含量无变化（p>0.05）。
