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Dorsal shaving affects concentrations of faecal cortisol metabolites in lactating golden hamsters
Breeding of golden hamsters is classically performed at thermal conditions ranging from 20 to 24 °C. However, growing evidence suggests that lactating females suffer from heat stress. We hypothesised that shaving females dorsally to maximise heat dissipation may reduce stress during reproduction. We...
Autores principales: | , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Springer Berlin Heidelberg
2018
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5769818/ https://www.ncbi.nlm.nih.gov/pubmed/29335818 http://dx.doi.org/10.1007/s00114-017-1536-7 |
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author | Ohrnberger, Sarah A. Brinkmann, Katharina Palme, Rupert Valencak, Teresa G. |
author_facet | Ohrnberger, Sarah A. Brinkmann, Katharina Palme, Rupert Valencak, Teresa G. |
author_sort | Ohrnberger, Sarah A. |
collection | PubMed |
description | Breeding of golden hamsters is classically performed at thermal conditions ranging from 20 to 24 °C. However, growing evidence suggests that lactating females suffer from heat stress. We hypothesised that shaving females dorsally to maximise heat dissipation may reduce stress during reproduction. We thus compared faecal cortisol metabolites (FCM) from shaved golden hamster mothers with those from unshaved controls. We observed significantly lower FCM levels in the shaved mothers (F(1,22) = 8.69, p = 0.0075) pointing to lower stress due to ameliorated heat dissipation over the body surface. In addition, we observed 0.4 °C lower mean subcutaneous body temperatures in the shaved females, although this effect did not reach significance (F(1,22) = 1.86, p = 0.18). Our results suggest that golden hamsters having body masses being more than four times that of laboratory mice provide a very interesting model to study aspects of lactation and heat production at the same time. |
format | Online Article Text |
id | pubmed-5769818 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2018 |
publisher | Springer Berlin Heidelberg |
record_format | MEDLINE/PubMed |
spelling | pubmed-57698182018-01-29 Dorsal shaving affects concentrations of faecal cortisol metabolites in lactating golden hamsters Ohrnberger, Sarah A. Brinkmann, Katharina Palme, Rupert Valencak, Teresa G. Naturwissenschaften Original Paper Breeding of golden hamsters is classically performed at thermal conditions ranging from 20 to 24 °C. However, growing evidence suggests that lactating females suffer from heat stress. We hypothesised that shaving females dorsally to maximise heat dissipation may reduce stress during reproduction. We thus compared faecal cortisol metabolites (FCM) from shaved golden hamster mothers with those from unshaved controls. We observed significantly lower FCM levels in the shaved mothers (F(1,22) = 8.69, p = 0.0075) pointing to lower stress due to ameliorated heat dissipation over the body surface. In addition, we observed 0.4 °C lower mean subcutaneous body temperatures in the shaved females, although this effect did not reach significance (F(1,22) = 1.86, p = 0.18). Our results suggest that golden hamsters having body masses being more than four times that of laboratory mice provide a very interesting model to study aspects of lactation and heat production at the same time. Springer Berlin Heidelberg 2018-01-15 2018 /pmc/articles/PMC5769818/ /pubmed/29335818 http://dx.doi.org/10.1007/s00114-017-1536-7 Text en © The Author(s) 2018 Open Access This article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. |
spellingShingle | Original Paper Ohrnberger, Sarah A. Brinkmann, Katharina Palme, Rupert Valencak, Teresa G. Dorsal shaving affects concentrations of faecal cortisol metabolites in lactating golden hamsters |
title | Dorsal shaving affects concentrations of faecal cortisol metabolites in lactating golden hamsters |
title_full | Dorsal shaving affects concentrations of faecal cortisol metabolites in lactating golden hamsters |
title_fullStr | Dorsal shaving affects concentrations of faecal cortisol metabolites in lactating golden hamsters |
title_full_unstemmed | Dorsal shaving affects concentrations of faecal cortisol metabolites in lactating golden hamsters |
title_short | Dorsal shaving affects concentrations of faecal cortisol metabolites in lactating golden hamsters |
title_sort | dorsal shaving affects concentrations of faecal cortisol metabolites in lactating golden hamsters |
topic | Original Paper |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5769818/ https://www.ncbi.nlm.nih.gov/pubmed/29335818 http://dx.doi.org/10.1007/s00114-017-1536-7 |
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