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Effect of feeding broad bean on muscle quality of tilapia

LUN Feng, LENG Xiang-jun, MENG Xiao-lin, LIU Xian-min (College of Aqua-life Science and Technology, Shanghai Fisheries University, Shanghai 200090, China)  
A study was conducted to investigate the effect of feeding broad bean on growth and meat quality of tilapia. Tilapias with body weight of 199.0 g were fed with practical complete diet or broad bean for 66 days. The feeding trial shows that the growth rate of tilapia fed with practical complete diet or broad bean were 60.65%,28.61%, feed conversion ratios were 2.24,4.64,condition factors were 16.18,11.64.The analysis of meat quality showed that the muscle's protein contents were 17.85%,17.06%; lipid contents were 0.56%, 1.37%, moisture-loss ratios were 13.72%,9.32%;length of myofibril were 312.2 μm ,394.7 μm for tilapia fed with practical complete diet or broad bean. Among these indexes,the growth rate ,condition factor, protein content and water-loss ratio were significantly decreased by feeding broad bean(P0.01),but the muscle's lipid content , length of myofibril and feed conversion ratios were increased (P 0.01).Results above show that there are some effects of feeding broad bean on meat quality of tilapia.
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