| abstract |
(57) [Summary] [Objective] To provide an antifeedant which is highly safe, inexpensive, has an antifeedant effect, and is excellent in sustainability of the effect. [Constitution] At least one selected from chitosan oligosaccharides obtained by hydrolyzing chitosan and salts thereof is contained as an active ingredient. This antifeedant is It can also be directly administered or ingested to livestock, fish farming, etc. Moreover, it can be used by being mixed with foods, pharmaceuticals, feeds, feeds and the like. |