Environmental and endocrine assessment of sheep welfare in a climate-controlled room: A preliminary study
Autor(a) principal: | |
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Data de Publicação: | 2013 |
Outros Autores: | , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
Texto Completo: | http://hdl.handle.net/10174/8744 |
Resumo: | The nutritional status of sheep grazing in the Montado ecosystem varies considerably throughout the year, due to variations in the availability and quality of pastures, strongly influenced by the typical climatic conditions of the Mediterranean region: dry summer and autumn with very little rain. These variations lead to severely restricted feeding for approximately half the year, causing under-nutrition, limitations on animal production and a poor level of welfare. The main objective of this work was to test the use of a salivette device to measure salivary cortisol concentrations in order to assess heat stress situations. The idea is that those variables will be used with PLF techniques to provide a rapid diagnostic test that could have a major impact on the assessment of animal welfare. Experiments were conducted in a climate-controlled room using pregnant adult ewes, fed on dehydrated alfalfa pellets at a restricted level (20g/kg0.75). The air temperature, humidity and CO2 concentration were recorded continuously inside and outside the room. The temperature and humidity index (THI) was used to assess heat stress level. Samples of blood and saliva were collected and cortisol, used as indicator of animal welfare, was determined by enzyme-linked immunosorbent assay (ELISA). The THI was compared with the cortisol concentration and the results showed that cortisol levels in saliva collected using the salivette device correlated highly with levels in the plasma. There appears to be evidence that salivary cortisol is a promising biomarker for automatic measurement of chronic heat stress. |
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Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
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Environmental and endocrine assessment of sheep welfare in a climate-controlled room: A preliminary studyTemperature-humidity indexautomatic monitoringsalivary cortisolthermal stressThe nutritional status of sheep grazing in the Montado ecosystem varies considerably throughout the year, due to variations in the availability and quality of pastures, strongly influenced by the typical climatic conditions of the Mediterranean region: dry summer and autumn with very little rain. These variations lead to severely restricted feeding for approximately half the year, causing under-nutrition, limitations on animal production and a poor level of welfare. The main objective of this work was to test the use of a salivette device to measure salivary cortisol concentrations in order to assess heat stress situations. The idea is that those variables will be used with PLF techniques to provide a rapid diagnostic test that could have a major impact on the assessment of animal welfare. Experiments were conducted in a climate-controlled room using pregnant adult ewes, fed on dehydrated alfalfa pellets at a restricted level (20g/kg0.75). The air temperature, humidity and CO2 concentration were recorded continuously inside and outside the room. The temperature and humidity index (THI) was used to assess heat stress level. Samples of blood and saliva were collected and cortisol, used as indicator of animal welfare, was determined by enzyme-linked immunosorbent assay (ELISA). The THI was compared with the cortisol concentration and the results showed that cortisol levels in saliva collected using the salivette device correlated highly with levels in the plasma. There appears to be evidence that salivary cortisol is a promising biomarker for automatic measurement of chronic heat stress.D. Berckmans and J. Vandermeulen2013-09-16T11:21:00Z2013-09-162013-01-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articlehttp://hdl.handle.net/10174/8744http://hdl.handle.net/10174/8744engBaptista F., Marques R., Castro J. A., Shahidian S., Fitas da Cruz V. and Sales-Baptista E. 2013. Environmental and endocrine assessment of sheep welfare in a climate-controlled room: A preliminary study. Precision Livestock Farming ’13. Eds D. Berckmans and J. Vandermeulen, pp 397-406.partilhar com ICAAMfb@uevora.ptndjcastro@uevora.ptshakib@uevora.ptvfc@uevora.ptelsaba@uevora.pt580Baptista, F.J.Marques, R.Castro, J.A.Shahidian, S.Fitas da Cruz, V.Sales-Baptista, E.info:eu-repo/semantics/openAccessreponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAP2024-01-03T18:50:09Zoai:dspace.uevora.pt:10174/8744Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-20T01:02:59.514302Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãofalse |
dc.title.none.fl_str_mv |
Environmental and endocrine assessment of sheep welfare in a climate-controlled room: A preliminary study |
title |
Environmental and endocrine assessment of sheep welfare in a climate-controlled room: A preliminary study |
spellingShingle |
Environmental and endocrine assessment of sheep welfare in a climate-controlled room: A preliminary study Baptista, F.J. Temperature-humidity index automatic monitoring salivary cortisol thermal stress |
title_short |
Environmental and endocrine assessment of sheep welfare in a climate-controlled room: A preliminary study |
title_full |
Environmental and endocrine assessment of sheep welfare in a climate-controlled room: A preliminary study |
title_fullStr |
Environmental and endocrine assessment of sheep welfare in a climate-controlled room: A preliminary study |
title_full_unstemmed |
Environmental and endocrine assessment of sheep welfare in a climate-controlled room: A preliminary study |
title_sort |
Environmental and endocrine assessment of sheep welfare in a climate-controlled room: A preliminary study |
author |
Baptista, F.J. |
author_facet |
Baptista, F.J. Marques, R. Castro, J.A. Shahidian, S. Fitas da Cruz, V. Sales-Baptista, E. |
author_role |
author |
author2 |
Marques, R. Castro, J.A. Shahidian, S. Fitas da Cruz, V. Sales-Baptista, E. |
author2_role |
author author author author author |
dc.contributor.author.fl_str_mv |
Baptista, F.J. Marques, R. Castro, J.A. Shahidian, S. Fitas da Cruz, V. Sales-Baptista, E. |
dc.subject.por.fl_str_mv |
Temperature-humidity index automatic monitoring salivary cortisol thermal stress |
topic |
Temperature-humidity index automatic monitoring salivary cortisol thermal stress |
description |
The nutritional status of sheep grazing in the Montado ecosystem varies considerably throughout the year, due to variations in the availability and quality of pastures, strongly influenced by the typical climatic conditions of the Mediterranean region: dry summer and autumn with very little rain. These variations lead to severely restricted feeding for approximately half the year, causing under-nutrition, limitations on animal production and a poor level of welfare. The main objective of this work was to test the use of a salivette device to measure salivary cortisol concentrations in order to assess heat stress situations. The idea is that those variables will be used with PLF techniques to provide a rapid diagnostic test that could have a major impact on the assessment of animal welfare. Experiments were conducted in a climate-controlled room using pregnant adult ewes, fed on dehydrated alfalfa pellets at a restricted level (20g/kg0.75). The air temperature, humidity and CO2 concentration were recorded continuously inside and outside the room. The temperature and humidity index (THI) was used to assess heat stress level. Samples of blood and saliva were collected and cortisol, used as indicator of animal welfare, was determined by enzyme-linked immunosorbent assay (ELISA). The THI was compared with the cortisol concentration and the results showed that cortisol levels in saliva collected using the salivette device correlated highly with levels in the plasma. There appears to be evidence that salivary cortisol is a promising biomarker for automatic measurement of chronic heat stress. |
publishDate |
2013 |
dc.date.none.fl_str_mv |
2013-09-16T11:21:00Z 2013-09-16 2013-01-01T00:00:00Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://hdl.handle.net/10174/8744 http://hdl.handle.net/10174/8744 |
url |
http://hdl.handle.net/10174/8744 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Baptista F., Marques R., Castro J. A., Shahidian S., Fitas da Cruz V. and Sales-Baptista E. 2013. Environmental and endocrine assessment of sheep welfare in a climate-controlled room: A preliminary study. Precision Livestock Farming ’13. Eds D. Berckmans and J. Vandermeulen, pp 397-406. partilhar com ICAAM fb@uevora.pt nd jcastro@uevora.pt shakib@uevora.pt vfc@uevora.pt elsaba@uevora.pt 580 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.publisher.none.fl_str_mv |
D. Berckmans and J. Vandermeulen |
publisher.none.fl_str_mv |
D. Berckmans and J. Vandermeulen |
dc.source.none.fl_str_mv |
reponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação instacron:RCAAP |
instname_str |
Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
instacron_str |
RCAAP |
institution |
RCAAP |
reponame_str |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
collection |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
repository.name.fl_str_mv |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
repository.mail.fl_str_mv |
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1799136513466826752 |