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《Journal of Dalian Fisheries University》 1990-Z1
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A Comparative Study on Activity of Lipase in Grass Carp, Common Carp, Silver Carp, Bighead Carp and Tilapia

Ni Shouwcn, et al(Depf. of Aquaculture)  
In grass carp and common carp, the lipase activity was higher in hepatopancreas than in guts (P0.025), in silver carp and bighead carp, the lipase activity was lower in hepatopancreas than in guts (P0.025). In tilapia the lipase activity in the hepatopancreas was similar to that in the gut, but it was lower in the stomach than in the hepatopancreas snd in the gut. The order of lipase activity from high to low in the hepatopancreas was grass carptilapia common carpbighead carpsilver carp; the lipase activity from high to low in guts was silver carpbighead carptilapiagrass carpcommon carp. The results showed that the food habit was not relative to the lipase activity in the fishes. In grass carp, silver carp and bighead carp, the lipase activitiy was higher in the mid-gut than in forc-and hind-gut. In common carp and tilapia, the magnitude of the lipase activity was gradually reduced from fore-gut to hind-gut.
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