Effect of birth weight on the surface temperature of piglets
Autor(a) principal: | |
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Data de Publicação: | 2015 |
Outros Autores: | , , , , , , |
Tipo de documento: | Artigo de conferência |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://hdl.handle.net/11449/220516 |
Resumo: | The aim of this study was to evaluate the effects of birth weight of piglets on the behaviour of their surface temperature after birth. Litters from four sows were used. After separation of the umbilical cord, the piglets were weighed. The piglets were divided into a completely randomised design with three treatments: T1 - less than 1.000 kg, T2 - 1.000 to 1.399 kg, and T3 - higher than or equal to 1.400 kg. Thermograph images were taken of all piglets at birth and at 15, 30, 45, 60, 120 and 180 minutes after birth. Data were subjected to Spearman's correlation. In terms of birth weight, approximately 22.8% of the piglets were in range 1 (<1.000 kg), 42.9% in range 2 (1.000 to 1.399 kg) and 34.3% in range 3 (> 1.400 kg). Positive correlations between piglet weight at birth and surface temperatures at 30 and 45 min postpartum were observed. The higher the piglets' weight at birth, the higher the surface temperatures during this interval and the temperature drop due to postnatal hypothermia is small. The temperature of the piglet at birth was positively correlated with the temperature at 15 min postpartum, consequently influencing temperatures in the 45-120 min range. Between 60 and 120 min postpartum there was an increase in piglet temperature, which explains the high positive correlation between these variables. The greater the piglet's weight at birth the higher the body temperature during the first hours of life. |
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Effect of birth weight on the surface temperature of pigletsInfrared thermographyPostnatal hypothermiaSwineThe aim of this study was to evaluate the effects of birth weight of piglets on the behaviour of their surface temperature after birth. Litters from four sows were used. After separation of the umbilical cord, the piglets were weighed. The piglets were divided into a completely randomised design with three treatments: T1 - less than 1.000 kg, T2 - 1.000 to 1.399 kg, and T3 - higher than or equal to 1.400 kg. Thermograph images were taken of all piglets at birth and at 15, 30, 45, 60, 120 and 180 minutes after birth. Data were subjected to Spearman's correlation. In terms of birth weight, approximately 22.8% of the piglets were in range 1 (<1.000 kg), 42.9% in range 2 (1.000 to 1.399 kg) and 34.3% in range 3 (> 1.400 kg). Positive correlations between piglet weight at birth and surface temperatures at 30 and 45 min postpartum were observed. The higher the piglets' weight at birth, the higher the surface temperatures during this interval and the temperature drop due to postnatal hypothermia is small. The temperature of the piglet at birth was positively correlated with the temperature at 15 min postpartum, consequently influencing temperatures in the 45-120 min range. Between 60 and 120 min postpartum there was an increase in piglet temperature, which explains the high positive correlation between these variables. The greater the piglet's weight at birth the higher the body temperature during the first hours of life.Animal Science Department Federal University of Grande DouradosAnimal Production Department State University of São PauloAnimal Science Department Federal University of GoiásFederal University of Grande DouradosUniversidade de São Paulo (USP)Universidade Federal de Goiás (UFG)Caldara, F. R.Santos, L. S.Moi, M.Garcia, R. G.Nääs, I. A.Foppa, L.Machado, S. P.Moura, R.2022-04-28T19:02:12Z2022-04-28T19:02:12Z2015-01-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/conferenceObject847-853Precision Livestock Farming 2015 - Papers Presented at the 7th European Conference on Precision Livestock Farming, ECPLF 2015, p. 847-853.http://hdl.handle.net/11449/2205162-s2.0-84949599566Scopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengPrecision Livestock Farming 2015 - Papers Presented at the 7th European Conference on Precision Livestock Farming, ECPLF 2015info:eu-repo/semantics/openAccess2022-04-28T19:02:12Zoai:repositorio.unesp.br:11449/220516Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-05T14:15:46.440130Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Effect of birth weight on the surface temperature of piglets |
title |
Effect of birth weight on the surface temperature of piglets |
spellingShingle |
Effect of birth weight on the surface temperature of piglets Caldara, F. R. Infrared thermography Postnatal hypothermia Swine |
title_short |
Effect of birth weight on the surface temperature of piglets |
title_full |
Effect of birth weight on the surface temperature of piglets |
title_fullStr |
Effect of birth weight on the surface temperature of piglets |
title_full_unstemmed |
Effect of birth weight on the surface temperature of piglets |
title_sort |
Effect of birth weight on the surface temperature of piglets |
author |
Caldara, F. R. |
author_facet |
Caldara, F. R. Santos, L. S. Moi, M. Garcia, R. G. Nääs, I. A. Foppa, L. Machado, S. P. Moura, R. |
author_role |
author |
author2 |
Santos, L. S. Moi, M. Garcia, R. G. Nääs, I. A. Foppa, L. Machado, S. P. Moura, R. |
author2_role |
author author author author author author author |
dc.contributor.none.fl_str_mv |
Federal University of Grande Dourados Universidade de São Paulo (USP) Universidade Federal de Goiás (UFG) |
dc.contributor.author.fl_str_mv |
Caldara, F. R. Santos, L. S. Moi, M. Garcia, R. G. Nääs, I. A. Foppa, L. Machado, S. P. Moura, R. |
dc.subject.por.fl_str_mv |
Infrared thermography Postnatal hypothermia Swine |
topic |
Infrared thermography Postnatal hypothermia Swine |
description |
The aim of this study was to evaluate the effects of birth weight of piglets on the behaviour of their surface temperature after birth. Litters from four sows were used. After separation of the umbilical cord, the piglets were weighed. The piglets were divided into a completely randomised design with three treatments: T1 - less than 1.000 kg, T2 - 1.000 to 1.399 kg, and T3 - higher than or equal to 1.400 kg. Thermograph images were taken of all piglets at birth and at 15, 30, 45, 60, 120 and 180 minutes after birth. Data were subjected to Spearman's correlation. In terms of birth weight, approximately 22.8% of the piglets were in range 1 (<1.000 kg), 42.9% in range 2 (1.000 to 1.399 kg) and 34.3% in range 3 (> 1.400 kg). Positive correlations between piglet weight at birth and surface temperatures at 30 and 45 min postpartum were observed. The higher the piglets' weight at birth, the higher the surface temperatures during this interval and the temperature drop due to postnatal hypothermia is small. The temperature of the piglet at birth was positively correlated with the temperature at 15 min postpartum, consequently influencing temperatures in the 45-120 min range. Between 60 and 120 min postpartum there was an increase in piglet temperature, which explains the high positive correlation between these variables. The greater the piglet's weight at birth the higher the body temperature during the first hours of life. |
publishDate |
2015 |
dc.date.none.fl_str_mv |
2015-01-01 2022-04-28T19:02:12Z 2022-04-28T19:02:12Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/conferenceObject |
format |
conferenceObject |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
Precision Livestock Farming 2015 - Papers Presented at the 7th European Conference on Precision Livestock Farming, ECPLF 2015, p. 847-853. http://hdl.handle.net/11449/220516 2-s2.0-84949599566 |
identifier_str_mv |
Precision Livestock Farming 2015 - Papers Presented at the 7th European Conference on Precision Livestock Farming, ECPLF 2015, p. 847-853. 2-s2.0-84949599566 |
url |
http://hdl.handle.net/11449/220516 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Precision Livestock Farming 2015 - Papers Presented at the 7th European Conference on Precision Livestock Farming, ECPLF 2015 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
847-853 |
dc.source.none.fl_str_mv |
Scopus reponame:Repositório Institucional da UNESP instname:Universidade Estadual Paulista (UNESP) instacron:UNESP |
instname_str |
Universidade Estadual Paulista (UNESP) |
instacron_str |
UNESP |
institution |
UNESP |
reponame_str |
Repositório Institucional da UNESP |
collection |
Repositório Institucional da UNESP |
repository.name.fl_str_mv |
Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP) |
repository.mail.fl_str_mv |
|
_version_ |
1808128337334239232 |