Zhang Jize, Na Ta, Jin Yanmei, Zhang Xiaoqing, Qu Hui, Zhang Qian
Institute of Grassland Research, Chinese Academy of Agricultural Sciences, Hohhot 010010, China.
Marine College, Shandong University, Weihai 264209, China.
Animals (Basel). 2020 Oct 29;10(11):1994. doi: 10.3390/ani10111994.
The nettle () is not only a functional edible food for humans but also a potential alternative feed resource for poultry, providing protein, fatty acids, vitamins, and minerals. The present study was conducted to evaluate the effects of dietary on the production of high-quality eggs with enriched n-3 polyunsaturated fatty acids (PUFA) and lower cholesterol contents. One hundred and twenty laying hens were assigned to three groups [control, 15% alfalfa meal supplementation (TRTA), and 15% supplementation (TRTU)]. The results showed that the feed intake, yolk color, and shell thickness were increased ( < 0.05) in the group. Moreover, cholesterol contents of the yolk and serum were lower in the group ( < 0.05). The total n-3 PUFA concentration in the yolk was increased while the ratio of n-6/n-3 was reduced in the group ( < 0.01). In conclusion, the dietary inclusion of increased shell thickness, yolk n-3 PUFA levels, and yolk color, and reduced cholesterol contents of the yolk and serum without any negative impacts on health or laying performance.
荨麻（）不仅是人类的一种功能性可食用食物，也是家禽潜在的替代饲料资源，能提供蛋白质、脂肪酸、维生素和矿物质。本研究旨在评估日粮中荨麻对生产富含n-3多不饱和脂肪酸（PUFA）且胆固醇含量较低的优质鸡蛋的影响。120只产蛋母鸡被分为三组[对照组、补充15%苜蓿粉组（TRTA）和补充15%荨麻组（TRTU）]。结果表明，荨麻组的采食量、蛋黄颜色和蛋壳厚度均有所增加（P<0.05）。此外，荨麻组蛋黄和血清中的胆固醇含量较低（P<0.05）。荨麻组蛋黄中总n-3 PUFA浓度增加，而n-6/n-3比例降低（P<0.01）。总之，日粮中添加荨麻可增加蛋壳厚度、蛋黄n-3 PUFA水平和蛋黄颜色，并降低蛋黄和血清中的胆固醇含量，且对健康或产蛋性能无任何负面影响。
