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Olfactory nerve response of masu salmon (Oncorhynchus masou Brevoort) and rainbow trout (O. mykiss Walbaum) to clove oil and MS-222

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Title: Olfactory nerve response of masu salmon (Oncorhynchus masou Brevoort) and rainbow trout (O. mykiss Walbaum) to clove oil and MS-222
Other Titles: Olfactory nerve response of masu salmon and rainbow trout to clove oil and MS-222
Authors: Yamamoto, Yuzo1 Browse this author
Woody, Carol A2 Browse this author
Shoji, Takayuki3 Browse this author
Ueda, Hiroshi4 Browse this author →KAKEN DB
Authors(alt): Yamamoto, Y.1
Woody, C. A.2
Shoji, T.3
Ueda, H.4
Keywords: clove oil
olfactory nerve response
Issue Date: Jul-2008
Publisher: Blackwell Publishing
Journal Title: Aquaculture Research
Volume: 39
Issue: 10
Start Page: 1019
End Page: 1027
Publisher DOI: 10.1111/j.1365-2109.2008.01957.x
Abstract: Two anaesthetics, clove oil and MS-222, were examined for their effects on the olfactory nerve response of masu salmon (Oncorhynchus masou) and rainbow trout (O. mykiss). Exposing fish to clove oil for 3 minutes at concentrations of 50 mg/L and 100 mg/L, or for 10 minutes at 50 mg/L, did not significantly reduce their olfactory response. Directly applying clove oil anaesthesia to the olfactory epithelium significantly reduced olfactory response, though olfactory response recovered to 70% and 52% of pre-treatment levels in masu salmon and rainbow trout, respectively, after 20 minutes. After a three minute exposure to unbuffered MS-222 (100 mg/ml), olfactory responsiveness continued to decline over time but no such long-term effects were observed after exposure to clove oil or buffered MS-222. Clove oil appears to be an effective and safe anaesthetic for salmonids with no long-term impact on their olfactory response, which plays a crucial role in their life history.
Rights: The definitive version is available at
Type: article (author version)
Appears in Collections:北方生物圏フィールド科学センター (Field Science Center for Northern Biosphere) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)

Submitter: 上田 宏

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