中国对虾摄食行为的化学感觉生理学研究──Ⅱ.中国对虾进食过程中的化学感觉

中国对虾成体的进食行为受接触化学感觉的调控，接触化学感觉的主要 作用是对食物进行选择。引起中国对虾进食行为的化学物质主要是一些小分子量 的可溶化合物，如氨基酸、有机酸等，天然食物的匀浆也有较强的效果。在浓度为 １０－４ｍｏｌ／Ｌ时．引起中国对虾进食行为较强的化学物质包括天冬氨酸、谷氨酰胺， 精氨酸和赖氨酸等。接触化学感受器主要位于组成前口腔的感觉刚毛里。还研究 了ｐＨ对中国对虾进食敏感性的影响，发现酸性刺激物（低ＰＨ的自然海水）能有效 地引起对虾的进食行为．而碱性刺激物不能引起对虾的进食行为。

CHEMORECEPTION IN THE INGESTION BEHAVIOR OF JUVENILE Penaeus chinensis OSBECK

Ingestion behavior of the shrimp Penaeus chinensis Osbeck was studied in the laboratory. Results showed that contact chemoreception Plays an important role in ingestion behavior of the shrimp. Ingestion behavior can be stimulated by such chemicals as amino acids and organic acids, which include DL--Asp,L-Glu,L- Arg, L-Lys, DL-Ser, succinate acid, L-Ser, L-Asp, taurine, L-Tyr, Gly, betaine. The effect of PH on the ingestion behavior of the shrimp was also investigated. Results indicated that sea water with low pH (<3) can stimulate ingestion behavior, while sea water with high pH showed little effect.