Effects of Artemisia argyi powder on production performance,egg quality,antioxidant function,and fecal scores of laying hens
This experiment aimed to investigate the effects of Artemisia argyi powder on the production performance,egg quality,antioxidant function,and fecal scores of laying hens.A total of 1 008 Hyline brown laying hens at 35 weeks of age with similar laying rates were randomly divided into three groups,with eight replicates in each group and 42 hens in each replicate.The control group was fed a basal diet,while the experimental groups were supplemented with 1％and 2％Artemisia argyi powder in the basal diet,respectively.The pretrial period lasted for seven days,and the formal experimental period lasted for 56 days.The results showed that there were no significant differences in laying rate,egg breakage rate,egg weight,average daily feed intake,and feed to egg ratio among the groups(P＞0.05).The eggshell thickness in the 1％and 2％Artemisia argyi powder groups was significantly higher than that in the control group(P＜0.05),and the albumen height and Haugh units in the 2％Artemisia argyi powder group were significantly higher than those in other groups(P＜0.05).Dietary 1％and 2％Artemisia argyi powder decreased serum MDA content,increased GSH content and CAT activity of laying hens(P＞0.05),had no significant effects on fecal score of laying hens(P＞0.05).The study indicates that the addition of 2％Artemisia argyi powder to the diet of laying hens can improve egg quality,enhance antioxidant function to a certain extent,and has no adverse effects on laying rate and feces scoring.
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