Feeding Behavior of Finishing Pigs under Diurnal Cyclic Heat Stress
Autor(a) principal: | |
---|---|
Data de Publicação: | 2023 |
Outros Autores: | , , , , , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://dx.doi.org/10.3390/ani13050908 http://hdl.handle.net/11449/249750 |
Resumo: | The impact of cyclic heat stress (CHS) and turning the lights on and off on pig feeding behavior (FB) was investigated. The FB of 90 gilts was recorded in real-time under two ambient temperatures (AT): thermoneutrality (TN, 22 °C) or CHS (22/35 °C). The day was divided into four periods: PI (06–08 h); PII (08–18 h); PIII (18–20 h); and PIV (20–06 h). Automatic and Intelligent Precision Feeders recorded each feed event for each pig. An estimated meal criterion (49 min) was used to calculate the FB variables. Feed behavior in both ATs followed a circadian pattern. The CHS reduced the feed intake by 6.9%. The pigs prioritized feed intake during the coolest hours of the day; however, nocturnal cooling did not allow the pigs to compensate for the reduced meal size due to CHS. The highest meal size and most of the meals were observed during the lighting-on period. The pigs reduced their interval between meals during PII and PIII. The lighting program increased the meal size when the lights were switched on and reduced the meal size when the lights were switched off. Thus, the dynamics of the FB were largely influenced by AT, whereas the meal size was affected by the lighting program. |
id |
UNSP_d6e9685388db574b2b06f3e907d0aec3 |
---|---|
oai_identifier_str |
oai:repositorio.unesp.br:11449/249750 |
network_acronym_str |
UNSP |
network_name_str |
Repositório Institucional da UNESP |
repository_id_str |
2946 |
spelling |
Feeding Behavior of Finishing Pigs under Diurnal Cyclic Heat Stresscircadian rhythmfeed patternlight programmeal patternprecision feedingswineThe impact of cyclic heat stress (CHS) and turning the lights on and off on pig feeding behavior (FB) was investigated. The FB of 90 gilts was recorded in real-time under two ambient temperatures (AT): thermoneutrality (TN, 22 °C) or CHS (22/35 °C). The day was divided into four periods: PI (06–08 h); PII (08–18 h); PIII (18–20 h); and PIV (20–06 h). Automatic and Intelligent Precision Feeders recorded each feed event for each pig. An estimated meal criterion (49 min) was used to calculate the FB variables. Feed behavior in both ATs followed a circadian pattern. The CHS reduced the feed intake by 6.9%. The pigs prioritized feed intake during the coolest hours of the day; however, nocturnal cooling did not allow the pigs to compensate for the reduced meal size due to CHS. The highest meal size and most of the meals were observed during the lighting-on period. The pigs reduced their interval between meals during PII and PIII. The lighting program increased the meal size when the lights were switched on and reduced the meal size when the lights were switched off. Thus, the dynamics of the FB were largely influenced by AT, whereas the meal size was affected by the lighting program.Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)Department of Animal Science School of Agricultural and Veterinarian Sciences São Paulo State University (Unesp), São PauloDepartment of Statistics Universidade Federal do Rio Grande do Sul, Rio Grande do SulDepartment of Animal Science Universidade Federal do Rio Grande do Sul, Rio Grande do SulDepartment of Animal Science School of Agricultural and Veterinarian Sciences São Paulo State University (Unesp), São PauloCNPq: 142555/2019-3Universidade Estadual Paulista (UNESP)Universidade Federal do Rio Grande do Sulde Oliveira, Marllon José Karpeggiane [UNESP]Valk, MarcioMelo, Antônio Diego Brandão [UNESP]Marçal, Danilo Alves [UNESP]Silva, Cleslei Alisson [UNESP]Valini, Graziela Alves da Cunha [UNESP]Arnaut, Pedro Righetti [UNESP]Gonçalves, Joseane Penteado Rosa [UNESP]Andretta, InesHauschild, Luciano [UNESP]2023-07-29T16:08:14Z2023-07-29T16:08:14Z2023-03-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articlehttp://dx.doi.org/10.3390/ani13050908Animals, v. 13, n. 5, 2023.2076-2615http://hdl.handle.net/11449/24975010.3390/ani130509082-s2.0-85149721988Scopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengAnimalsinfo:eu-repo/semantics/openAccess2024-06-07T18:43:48Zoai:repositorio.unesp.br:11449/249750Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-05T21:11:49.812807Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Feeding Behavior of Finishing Pigs under Diurnal Cyclic Heat Stress |
title |
Feeding Behavior of Finishing Pigs under Diurnal Cyclic Heat Stress |
spellingShingle |
Feeding Behavior of Finishing Pigs under Diurnal Cyclic Heat Stress de Oliveira, Marllon José Karpeggiane [UNESP] circadian rhythm feed pattern light program meal pattern precision feeding swine |
title_short |
Feeding Behavior of Finishing Pigs under Diurnal Cyclic Heat Stress |
title_full |
Feeding Behavior of Finishing Pigs under Diurnal Cyclic Heat Stress |
title_fullStr |
Feeding Behavior of Finishing Pigs under Diurnal Cyclic Heat Stress |
title_full_unstemmed |
Feeding Behavior of Finishing Pigs under Diurnal Cyclic Heat Stress |
title_sort |
Feeding Behavior of Finishing Pigs under Diurnal Cyclic Heat Stress |
author |
de Oliveira, Marllon José Karpeggiane [UNESP] |
author_facet |
de Oliveira, Marllon José Karpeggiane [UNESP] Valk, Marcio Melo, Antônio Diego Brandão [UNESP] Marçal, Danilo Alves [UNESP] Silva, Cleslei Alisson [UNESP] Valini, Graziela Alves da Cunha [UNESP] Arnaut, Pedro Righetti [UNESP] Gonçalves, Joseane Penteado Rosa [UNESP] Andretta, Ines Hauschild, Luciano [UNESP] |
author_role |
author |
author2 |
Valk, Marcio Melo, Antônio Diego Brandão [UNESP] Marçal, Danilo Alves [UNESP] Silva, Cleslei Alisson [UNESP] Valini, Graziela Alves da Cunha [UNESP] Arnaut, Pedro Righetti [UNESP] Gonçalves, Joseane Penteado Rosa [UNESP] Andretta, Ines Hauschild, Luciano [UNESP] |
author2_role |
author author author author author author author author author |
dc.contributor.none.fl_str_mv |
Universidade Estadual Paulista (UNESP) Universidade Federal do Rio Grande do Sul |
dc.contributor.author.fl_str_mv |
de Oliveira, Marllon José Karpeggiane [UNESP] Valk, Marcio Melo, Antônio Diego Brandão [UNESP] Marçal, Danilo Alves [UNESP] Silva, Cleslei Alisson [UNESP] Valini, Graziela Alves da Cunha [UNESP] Arnaut, Pedro Righetti [UNESP] Gonçalves, Joseane Penteado Rosa [UNESP] Andretta, Ines Hauschild, Luciano [UNESP] |
dc.subject.por.fl_str_mv |
circadian rhythm feed pattern light program meal pattern precision feeding swine |
topic |
circadian rhythm feed pattern light program meal pattern precision feeding swine |
description |
The impact of cyclic heat stress (CHS) and turning the lights on and off on pig feeding behavior (FB) was investigated. The FB of 90 gilts was recorded in real-time under two ambient temperatures (AT): thermoneutrality (TN, 22 °C) or CHS (22/35 °C). The day was divided into four periods: PI (06–08 h); PII (08–18 h); PIII (18–20 h); and PIV (20–06 h). Automatic and Intelligent Precision Feeders recorded each feed event for each pig. An estimated meal criterion (49 min) was used to calculate the FB variables. Feed behavior in both ATs followed a circadian pattern. The CHS reduced the feed intake by 6.9%. The pigs prioritized feed intake during the coolest hours of the day; however, nocturnal cooling did not allow the pigs to compensate for the reduced meal size due to CHS. The highest meal size and most of the meals were observed during the lighting-on period. The pigs reduced their interval between meals during PII and PIII. The lighting program increased the meal size when the lights were switched on and reduced the meal size when the lights were switched off. Thus, the dynamics of the FB were largely influenced by AT, whereas the meal size was affected by the lighting program. |
publishDate |
2023 |
dc.date.none.fl_str_mv |
2023-07-29T16:08:14Z 2023-07-29T16:08:14Z 2023-03-01 |
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://dx.doi.org/10.3390/ani13050908 Animals, v. 13, n. 5, 2023. 2076-2615 http://hdl.handle.net/11449/249750 10.3390/ani13050908 2-s2.0-85149721988 |
url |
http://dx.doi.org/10.3390/ani13050908 http://hdl.handle.net/11449/249750 |
identifier_str_mv |
Animals, v. 13, n. 5, 2023. 2076-2615 10.3390/ani13050908 2-s2.0-85149721988 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Animals |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
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_ |
1808129297009868800 |