Effects of complex fermented herbs on growth performance,slaughter performance,antioxidant function and intestinal development of broilers
The aim of this experiment was to investigate the effects of complex fermented herbs on growth performance,slaughter performance,antioxidant performance and intestinal development of white feather broilers.One hundred and forty-four broilers of 1 day old were selected and randomly divided into three treatments with four replicates of 12 chickens each.The control group was fed with a basal diet and the experimental group was respectively supplemented with 1％compounded unfermented herbs(experimental group)and fermented herbs(fermented group)in the basal diet.The experimental period was 42 d.The results showed as follows:(1)From 1 to 42 d,compared with the control group,the average daily weight gain(ADG)of broilers in the experimental and fermentation groups was increased by 3.06％and 4.25％,and the feed-to-weight ratio(F/G)was decreased by 5.14％and 7.43％(P＜0.05).(2)No significant difference in slaughtering performance between groups(P＞0.05).(3)Compared with the control group,the activity of glutathione peroxidase(GSH-Px)in serum was significantly increased by 110.20％in the fermentation group(P＜0.05).The activity of superoxide dismutase(SOD)content was increased by 74.21％and 132.85％.Meanwhile,the activity of malondialdehyde(MDA)content was decreased by 37.37％and 40.15％in the experimental and fermentation groups(P＜0.05).(4)Compared with the control group,the development of villus height in the experimental group and fermentation group was increased by 21.50％and 64.12％(P＜0.05),and the depth of crypts was decreased by 6.65％and 17.47％(P＜0.05).In conclusion,the addition of this fermented herb to the feed could effectively improve the growth performance of 42-day-old white feather broilers,enhance the antioxidant function,and promote the development and maturation of intestinal morphology,thus improving the growth efficiency.
white feather broilerfermented herbsgrowth performance
万方数据
维普
