Studies on the Feeding Attractants for Fishes and Shellfishes-XIX. Attraction Activities of Herbal Crude Drugs for Abalone, Oriental Weatherfish, and Yellowtail.

Abstract

The attraction activities of herbal crude drugs were statistically estimated on the basis of exploratory behavior of three aquatic test animals; the black abalone Haliotis discus, the oriental weatherfish Misgurnus anguillicaudatus, and the yellowtail Seriola quinqueradiata. Among twenty-three herbal crude drugs, the common attractive drugs for all test animals were following three drugs; Herba plectranthi (En'meisou in Japanese) and Phellodendron bark (Ohbaku) of bitter stomachic, and sweet Hydrangea leaf (Amacha) of corrective. The most potent attractive drugs were Amomum seed (Shukusha) of fragrant and pungent stomachic for abalone, guarana seed (Garana) of cardiac stimulant for oriental weatherfish, and Gentian (Genchana) of bitter stomachic for yellowtail. The attraction activity of each of these drugs increased appreciably with the increase in concentration (0.1-3.0%) for oriental weatherfish and yellowtail, but decreased at high concentrations for abalone.