Effects of Taraxacum mongolicum Hand-Mazz phenolic acid on production performance,egg quality,inflammatory factors,and intestinal structure of laying hens
The study aimed to investigate the effects of different levels of Taraxacum mongolicum Hand-Mazz phenolic acid(TPA)supplementation in the diet of laying hens on the production performance,egg quality,serum inflammatory factors,and intestinal structure.A total of 150 healthy Hy-Line Brown laying hens,20 weeks old with similar body weight and egg-laying rate,were randomly divided into three groups with five replicates,each replicate containing ten hens.The control group(DZ group)was fed a basal diet,while the experimental groups TPA0.5%and TPA1.0%were fed the basal diet supplemented with 0.5%and 1.0%TPA,respectively.The pre-test period was three days,and the formal test period was 56 days.The results showed that the average daily feed intake of the TPA1.0%group was significantly higher than that of the DZ and TPA0.5%groups(P<0.05),and the feed-to-egg ratio of the TPA1.0%group was significantly lower than that of the DZ group(P<0.05).The yolk color ratios of the TPA0.5%and TPA1.0%groups were significantly higher than those of the DZ group(P<0.05),with the TPA1.0%group showing a significantly higher albumen height(P<0.05).The release levels of tumor necrosis factor-α(TNF-α)and interleukin-6(IL-6)in the TPA0.5%and TPA1.0%groups were significantly lower than those in the DZ group(P<0.05),and the interleukin-1β(IL-1β)release level in the TPA1.0%group was significantly lower than those in the DZ and TPA0.5%groups(P<0.05),while the interleukin-10(IL-10)level in the TPA0.5%and TPA1.0%groups was significantly higher than that in the DZ group(P<0.05).The villus height and villus-to-crypt ratio in the TPA1.0%group were significantly higher than those in the DZ group(P<0.05),and the intestinal wall thickness in the TPA0.5%and TPA1.0%groups was significantly higher than that in the DZ group(P<0.05).The study indicates that the addition of TPA to the diet of laying hens can improve their production performance,egg quality,serum inflammatory factors,and intestinal structure,with the best effects observed at a 1.0%addition level.
国家科技期刊平台
NSTL
万方数据
