数字农科院2.0

Thicker shell eggs with enriched N-3 polyunsaturated fatty acids and lower yolk cholesterol contents, as affected by dietary nettle (Urtica cannabina) supplementation in laying hens

文献类型： 外文期刊

作者： 张继泽;塔娜;金艳梅;张晓庆;渠晖;张千

作者机构：

关键词： Urtica cannabina; cholesterol; egg quality; n-3 polyunsaturated fatty acids

期刊名称： Animals

ISSN： 2076-2615

年卷期： 2020 年

页码：

收录情况： SCIE（2023版）

摘要： The nettle Urticacannabina (U.cannabina) 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 U.cannabina 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% U.cannabina supplementation (TRTU)]. The results showed that the feed intake, yolk color, and shell thickness were increased (p < 0.05) in the U.cannabina group. Moreover, cholesterol contents of the yolk and serum were lower in the U.cannabina group (p < 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 U.cannabina group (p < 0.01). In conclusion, the dietary inclusion of U.cannabina 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.

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