Impact of tank background on the welfare of the African clawed frog, Xenopus laevis (Daudin)
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Authors
Holmes, Andrew M.Emmans, Christopher J.
Jones, Niall
Coleman, Robert C.
Smith, Tessa E.
Hosie, Charlotte A.
Affiliation
University of ChesterPublication Date
2016-09-14
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The captive environment of a laboratory animal can profoundly influence its welfare and the scientific validity of research produced. The African clawed frog (Xenopus laevis) is a common model organism, however current husbandry guidelines lack supporting quantitative evidence. The visual environment is a fundamental aspect of a captive animal’s housing and may affect a number of physiological and behavioural responses. This is particularly important for species such as X. laevis where cryptic camouflage is a fundamental defence mechanism. Here male (n = 16) and female (n = 20) X. laevis were housed in tanks with ecologically relevant (black) and non-relevant (white) background colours and physiological and behavioural responses observed. Higher levels of water-borne corticosterone were observed in tanks with a white background compared to a black background in females (p = 0.047). Increased atypical active behaviours (Swimming: p = 0.042; Walling: p = 0.042) and a greater degree of body mass loss (p < 0.001) were also observed in the white background condition. Together these responses are indicative of increased stress of X. laevis when housed in tanks with a non-ecologically relevant background compared to an ecologically relevant background and suggest refined tank background colour may improve welfare in this species.Citation
Holmes, A. M., Emmans, C. J., Jones, N., Coleman, R., Smith, T. E. & Hosie, C. A. (2016). Impact of tank background on the welfare of the African clawed frog, Xenopus laevis (Daudin). Applied Animal Behaviour Science, 185,131-136.Publisher
ElsevierJournal
Applied Animal Behaviour ScienceAdditional Links
https://www.sciencedirect.com/science/article/pii/S0168159116302684Type
ArticleLanguage
enISSN
0168-1591ae974a485f413a2113503eed53cd6c53
10.1016/j.applanim.2016.09.005
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