Preliminary study on activities of digestive enzymes of Scorturm barcoo at different growth stages

Activities of amylase,pepsin and lipase in stomach,hepatopancreas and gut of Scorturm barcoo were studied at four different growth stages: 30,70,120 d after hatching out and adult fish,the body weight were(2.29±0.49),(23.26±4.23),(88.06±6.73),(270.26±9.17),respectively.Results showed that with the growth of S.barcoo,the amylase activity was low at all stages,and it increased gradually in hepatopancreas,foregut and hindgut;pepsin activity in stomach increased gradually and remained stable after stage 3;the fat was mainly digested in the gut,lipase activity in foregut firstly increased,and then decreased,after that,lipase activity in midgut increased,which continue to digest fat.