Effects of Dietary Ginger Extract on Growth Performance and Intestinal Microorganisms in Wenchang Chicken
The experiment involved 300 healthy 43-day-old Wenchang roosters with similar body weights,randomly divided into 5 groups.Each group consisted of 6 replicates.The experimental period lasted for 28 days.The results showed that adding ginger extract at levels of 0.8%to 3.2%significantly increased the average daily weight gain of Wenchang chickens(P<0.05).Compared to the control group,the addition of 0.8%to 3.2%ginger extract in the feed significantly improved the chicken slaughter rate(P<0.05)and significantly reduced abdominal fat percentage(P<0.05).The addition of ginger extract to the feed led to a significant decrease in the total bacterial count within the cecum microbiota of Wenchang chickens(P<0.05),and 3.2%and 6.4%additions had a significant inhibitory effect on Escherichia coli(P<0.05).The addition of 3.2%had the most significant promoting effect on Lactobacillus,and 3.2%and 6.4%additions significantly promoted the growth of Bifidobacterium.The addition of ginger extract to the feed has a positive effect on the production and slaughter performance of Wenchang chickens,inhibits the total bacterial count and Escherichia coli in the cecum,and promotes the growth of Lactobacillus and Bifidobacterium.It is recommended to add 3.2%ginger extract to the feed for Wenchang chickens.