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１材料与方法１．１试验材料试验用黄鳝每尾平均重量１１．２～３４．３g，平均体长１９．１～３６．２cm，共４０尾，鱼体健康。１．２肠内pH值测定对鲜活的试验鱼饥饿２４h后捣毁脊髓处死，置冰盘内迅速取出肠道和肝胰脏，剔除脂肪、肠系膜，剪开肠道和肝胰脏，并用精密pH试?
1 Materials and methods 1.1 Test Materials Eel with an average weight of 11.2 ~ 34.3g, average body length 19.1 ~ 36.2cm, a total of 40, the fish healthy. 1.2 Determination of intestinal pH fresh fish live 24h after the destruction of the spinal cord was killed, set the ice tray quickly remove the intestine and hepatopancreas, remove fat, mesentery, cut open intestine and hepatopancreas, and precision pH test?