Effect of Alisma Extract on Production Performance and Cholesterol Metabolism of Green-Eggshell Chickens
The effects of Alisma orientalis extracts with different concentration on the production performance,egg quality,serum lipid indexes and yolk cholesterol content of green-eggshell chickens.Five groups of 190-day-old green-shell chickens with a similar laying rate were randomly assigned from 225 chickens.In each group,there were 3 replicates with 15 laying chickens per replicate.The blank control group was fed without the extracts of Alisma orientalis,while the positive control was fed with 0.58 mg/kg Lovastatin.The experimental group had 0.1%,0.3% and 0.5 % extracts of A lisma orientalis,respectively,for 42 days.The egg production rate was increased by 12.28 % with 0.5 % extracts of Alisma orientalis compared with the blank control group.The egg yolk cholesterol was significantly reduced by 24.2% using 0.3% extracts,while 35.5% decrease for triglyceride levels and 51.97% decrease for serum cholesterol.The immune index was greatly improved by 0.1% extracts.A certain dose of Alisma orientalis extracts could thus reduce the cholesterol level of egg and serums,to improve the quality of eggs and chickens immunity.The optimal dosage was recommended as 0.3%.
green-eggshell chickensextracts of Alisma orientalisproduction performanceegg qualitycholesterol