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Position: Home > Articles > Studies on the Digestive Tube Index and the Activity Distribution of Two Digestive Protease Activity in NEW GIFT Tilapia(Oreochromis niloticus) Fujian Journal of Agricultural Sciences 2013 (8) 727-730

“新吉富”罗非鱼消化道指数及2种蛋白酶活性研究

作  者:
吴斌;樊海平;钟全福;翁祖桐;梁萍;陈度煌
单  位:
福建省水产技术推广总站;福建省淡水水产研究所
关键词:
新吉富罗非鱼;消化道指数;胃蛋白酶;胰蛋白酶
摘  要:
开展"新吉富"罗非鱼消化道指数以及胃蛋白酶和胰蛋白酶活性动态变化研究,结果表明,"新吉富"罗非鱼比肠长为4.921±0.187,比肠质量为0.018±0.002,比肝质量为0.014±0.003,比内脏质量为0.039±0.007,表现为偏植食性为主的杂食性鱼类特征。空腹再投喂后0~96h,胃蛋白酶活性于12h增加至最大值167.872U,投喂12~96h其活性降低,特别是12~24h,减少幅度较大。同时检测其肝脏、前肠、中肠、后肠中胰蛋白酶活性动态变化情况,各组织的胰蛋白酶活性比较,肝<中肠<前肠<后肠,各部位的胰蛋白酶活性总体呈先增加达最大值后,再减小的趋势,各部位胰蛋白酶活性差异显著(P<0.05)。
译  名:
Studies on the Digestive Tube Index and the Activity Distribution of Two Digestive Protease Activity in NEW GIFT Tilapia(Oreochromis niloticus)
作  者:
WU Bin;FAN Hai-ping;ZHONG Quan-fu;WENG Zu-tong;LIANG Ping;CHEN Du-huang;Freshwater Fisheries Research Institute of Fujian;Fujian Fishery Technical Extension Station;
关键词:
Oreochromis niloticus;;digestive tube index;;pepsin;;trypsin
摘  要:
Digestive tube index and the activity distribution of pepsin and trypsin In NEW GIFT Tilapia(Oreochromis niloticus)were studied.It was found that Oreochromis niloticus had intestinal length(IL)/total length(TL)of 4.921 ± 0.187,intestinal weight(IW)/body weight(BW)of 0.018 ± 0.002,and hepatopancreas weight(HW)/BW of 0.014±0.003,splanchnic weight(SW)/BW of 0.039±0.007.The result showed that Oreochromis niloticus was a kind of heterophagous fish with partial phytophagy food habit.After starvation and refeeding,Pepsin activity increased to a maximum of 167.872Uat 12h.However,it reduced from12hto 96h;especially 12hto 24h,the decrease rate was significant.Trypsin activities of hepatopancreas,foregut,midgut and hindgut were tested.The specific activity of trypsin in four organs was in the order of hepatopancreas

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