Effects of fermented cottonseed meal replacing soybean meal on growth performance,serum biochemical indicators and slaughter performance in broilers
This experiment aims to investigate the effects of fermented cottonseed meal replacing soybean meal on the growth performance,serum biochemical indicators,and slaughter performance of broilers.Select 4001-day-old white feather broilers and randomly divide them into 4 groups,with 10 replicates in each group,with 10 chickens per replicate.Using 0%,2%,4%,and 8%fermented cottonseed meal instead of soybean meal in the basic diet as the experimental diet,the experiment lasted for a total of 42 days.The experimental results showed that using 2%fermented cottonseed meal instead of soybean meal in the diet significantly increased the final body weight and average daily gain of broilers(P＜0.05);The use of 8%fermented cottonseed meal instead of soybean meal in the diet significantly reduced the final body weight and average daily gain of broilers(P＜0.05);Compared with the 2%addition group,adding 8%fermented cottonseed meal to the diet significantly increased the feed to weight ratio of broilers(P＜0.05);In addition,using fermented cottonseed meal instead of soybean meal had no significant effect on the average daily feed intake of broilers(P＞0.05).Adding 2%fermented cottonseed meal to the diet significantly increased the serum total protein and albumin content of broilers(P＜0.05);Adding 8%fermented cottonseed meal to the diet significantly increased the activities of serum alanine aminotransferase and alanine aminotransferase in broilers(P＜0.05);In addition,the addition of fermented cottonseed meal to the diet did not significantly affect the serum triglycerides,total cholesterol,and urea nitrogen content of broilers(P＞0.05).Adding 2%fermented cottonseed meal to the diet significantly increased the semi net bore rate,full net bore rate,and leg muscle rate of broilers(P＜0.05);In addition,the addition of fermented cottonseed meal to the diet had no significant effect on the abdominal fat rate and chest muscle rate of broilers(P＞0.05).In summary,under the conditions of this experiment,the optimal amount of fermented cottonseed meal added to broiler feed is 2%.
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