The effect of sorghum diet on the growth performance,serum biochemical indicators,and gut microbiota of meat ducks
The effect of sorghum diet on the growth performance,serum biochemical indicators,and gut microbiota of meat ducks.1200 healthy 1-day-old Cherry Valley male ducks were randomly divided into 4 groups,with 10 replicates in each group and 40 ducks per replicate.The control group(Ctr)and experimental groups Ⅰ,Ⅱ,and Ⅲ were fed with diets supplemented with 0%,3%,6%,and 12%sorghum,respectively,for a total of 35 days.The results showed that the final weight of experimental group Ⅲ meat ducks was significantly lower than that of the control group by 8.08%(P＜0.05).The average daily weight gain of experimental group Ⅱ and Ⅲ meat ducks was significantly lower than that of the control group by 5.52%and 8.30%,respectively(P＜0.05).The feed meat of experimental group Ⅲ meat ducks was significantly reduced by 7.79%compared to the control group(P＜0.05);In addition,there was no significant difference in feed intake between the groups(P＞0.05).The serum TP and T4 levels in groups Ⅱ and Ⅲ meat ducks were significantly reduced(P＜0.05),while ALP and ALT activities were significantly increased(P＜0.05).The serum AST activity in group Ⅱ meat ducks was significantly reduced(P＜0.05),and the serum T-AOC activity in group Ⅲ meat ducks was significantly reduced(P＜0.05);There were no significant differences in serum Alb,Ca,P,C3,C4,and MDA levels among the groups of meat ducks(P＞0.05).The content of Escherichia coli and Bacillus subtilis in the cecum of meat ducks significantly increased(P＜0.05),while the content of Salmonella,Lactobacillus,and Clostridium butyricum in the cecum of meat ducks did not show significant differences among the groups(P＞0.05).(Experimental conclusion)Excessive(12%)addition of sorghum has a certain negative impact on the growth and development of meat ducks,and its mechanism may be related to the damaging effect of sorghum on their intestines and internal organs.
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