Feeding Laying Ducks Eucommia Ulmoides Oliv. Leaves Increases the N-3 Fatty Acids Content and Decreases the N-6: N-3 PUFA Ratio in Egg Yolk Without Affecting Laying Performance or Egg Quality
FOODS(2023)
摘要
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).
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关键词
n-3 polyunsaturated fatty acids,polyunsaturated fatty acids,cholesterol,laying ducks,performance
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