杜仲叶粉对绿壳蛋鸡蛋品质、血清生化指标、屠宰性能及肉质性状的影响

doi:10.16431/j.cnki.1671-7236.2021.01.018

Abstract

Abstract: The experiment was conducted to study the effects of adding different levels of Eucommia ulmoides leaves (EUL) powder on egg quality,serum biochemical indexes,slaughter performance and meat quality of Green-shell layers.80 healthy Green-shell layers with the similar body weight,egg-production rates and good healthy conditions were randomly divided into 4 groups with each group 20 replicates and each replicate had 1 chicken.Each group was fed corn-soybean meal diet supplemented with 0% (CTL group),2% (EUL1 group),4% (EUL2),6% (EUL3) Eucommia ulmoides leaves meal.The trial period lasted for 5 d,the formal experiment period lasted for 70 d.The egg quality,serum biochemical indexes,slaughter performance and meat quality of each group of chickens were measured after the feeding test.The results showed as follows:Adding Eucommia ulmoides leaves powder into diets could significantly decreased the triglyceride (EUL1,EUL2,EUL3),glucose (EUL2,EUL3) and urea (EUL2,EUL3) in serum (P<0.01).There was no significant difference in egg quality and slaughter performance (P>0.05).Liver weight (EUL1,EUL2) and heart weight (EUL1,EUL2,EUL3) were significantly reduced (P<0.01).Thigh muscle protein (EUL1) and pectoral muscle fat (EUL2) content were significantly increased (P<0.05).The pH_{24 h} of the leg muscles (EUL2) was significantly increased (P<0.05).The shear force of the leg muscle (EUL1) was significantly reduced (P<0.01).In conclusion,Eucommia ulmoides leaves powder could significantly reduce the levels of triglyceride,glucose and urea in serum.There was no significantly difference in egg quality,but the muscle quality of Green-shell layers were improved,pectoral fat leg muscle protein content and leg muscle tenderness were increased,liver weight and heart weight were significantly reduced.In this experiment,the suitable adding level of Eucommia ulmoides leaves powder in layer feed was 4%.

Key words: Eucommia ulmoides leaves; Green-shell layers; egg quality; serum biochemical indexes; slaughter performance; meat quality

CLC Number:

S831

MAO Yafang, ZHOU Zhenbo, DU Hongyan, DU Qingxin, YANG Gaiqing, WANG Linfeng, FU Tong, LIAN Hongxia, GAO Tengyun, WANG Fuzhou, CHEN Yifei. Effects of Eucommia ulmoides Leaves Powder on Egg Quality,Serum Biochemical Indexes,Slaughtering Performance and Meat Quality in Green-shell Layers[J]. China Animal Husbandry and Veterinary Medicine, 2021, 48(1): 161-171.

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Effects of Eucommia ulmoides Leaves Powder on Egg Quality,Serum Biochemical Indexes,Slaughtering Performance and Meat Quality in Green-shell Layers

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