Establishment of the artificial digestion method using a gastrointestinal tract of fish

对岩鱼离体胃进行了胃消化研究。比较了离体胃、体内胃和离体胃的消化率，认为该技术可作为一种新的人工胃消化方法。各组消化率不同（体内68%，离体68%，体外51%，体外33%），但体外试验表明，体外消化技术的消化率优于人工消化。这些结果表明，离体胃作为一种新的人工方法，可用于评价鱼的胃消化功能。

Gastric digestion was studied in the isolated ex vivo stomach of rockfish. The digestibility of the ex vivo stomach was compared to in vivo and in vitro stomachs so that this technique could be used as a new artificial gastric digestion method. The digestibility was varied among groups(in vivo ; 68%, ex vivo ; 51%, in vitro ; 33%, respectively), however, the ex vivo technique appears a better digestibility than the artificial digestion using an in vitro test. These findings suggest that the ex vivo stomach should be useful in evaluation of fish gastric digestion, as a new artificial method.