2006•Dongwu yingyang xuebaoRequires access

Effects of Non-Starch Polysaccharide Enzyme on Performance and Resistance to Germs of Hybrid Tilapia Oreochromis Niloticus ×O.Aureus

Jiting Wang, WU Shu-qin

Abstract

A feeding trial was conducted to study the effect of non-starch polysaccharide (NSP) enzyme on the performance of hybrid tilapia Oreochromis niloticus×O.aureus.Five hundred and sixty fish were randomly allotted to four groups with 7 replicates each and fed rations with different levels of NSP-enzyme(0,0.1,0.2 and 0.4 mL/kg feed).The results showed that 1) supplement of NSP-enzyme in the hybrid tilapia diet had significantly increased specific growth rate(SGR) and feed conversion rate(FCR)(P0.05);2) the phagocytic function of tilapia leucocytes,serum bactericidal activities,and lysozyme activities of the hybrid tilapia tissues were improved significantly with the supplement of NSP-enzyme(P0.05).

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Key concepts: Oreochromis, Tilapia, Lysozyme, Biology, Food science, Enzyme, Polysaccharide, Microbiology