水産増殖
Online ISSN : 2185-0194
Print ISSN : 0371-4217
ISSN-L : 0371-4217
短報
Effects of Umami substances on feed intake and neuropeptide Y expression in yellowtail Seriola quinqueradiata
Ayaka SenzuiToshiro MasumotoHaruhisa Fukada
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2020 年 68 巻 2 号 p. 159-162

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To evaluate the effects of four Umami substances (inosine-monophosphate: IMP, monosodium glutamate: MSG, guanosine monophosphate: GMP, succinic acid: SA) on feed intake and neuropeptide Y (NPY) expression in yellowtail. IMP and GMP increased both feed intake and npy expression, while MSG did not increase feed intake or npy expression. SA did not increase feed intake, but significantly increased npy expression. npy expression levels reflected feed intake, except for the SA treatment, suggesting that some Umami substances might increase feed intake by increasing hypothalamus npy expression.

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© 2020 Japanese Society for Aquaculture Science
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