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《Journal of Anhui Agricultural Sciences》 2008-03
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Effect of Exogenous Enzymes on the Growth and Apparent Digestibility in Feeds of Grass Carp Fingerling

HUANG Feng et al(Department of Animal Feed Science,Wuhan Polytechnic College,Wuhan,Hubei 430023)  
[Objective] The aim of the research was to discuss the approach of rational utilization of enzyme preparation in the feed of aquatic animals.[Method] 4 kinds of mono-enzyme of the xylanase at 0,150 and 300 mg/kg,N-protease at 0,50 and 100 mg/kg,amylase at 0,200 and 400 mg/kg and cellulose at 0,200 and 400 mg/kg were added into the feed and mixed for confecting enzyme mixture preparation to study the effect of the exogenous enzymes on the growth performance and apparent digestibility in feeds of grass carp fingerling by L9(34)design.[Result] The influence 4 kinds of mono-enzyme on growth grass carp fingerling in order was xylanaseamylaseN-proteasecellulase.The exogenous enzyme mixtures had a definite influence on dry material and apparent digestibility of crude protein in feed of grass carp fingerling and the contributors of 4 kinds of mono-enzyme in order was xylanasecellulase amylaseN-protease.The proper formula for the exogenous enzyme mixture was the xylanase 300 mg/kg,amylase 200~400 mg/kg,N-protease 0~50 mg/kg and cellulase 0~200 mg/kg.[Conclusion] The exogenous enzyme mixture can improve the specific growth rate and net weight gain rate of grass carp fingerling and increase the feed digestility of grass carp
【Fund】: 国家科技攻关项目(2001BA205B06)
【CateGory Index】: S963.73
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