Performance and carcass composition of pigs from two sire lines are affected differently by ambient temperature
Autor(a) principal: | |
---|---|
Data de Publicação: | 2021 |
Outros Autores: | , , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://dx.doi.org/10.1071/AN20078 http://hdl.handle.net/11449/208293 |
Resumo: | Context: Differences among breeds or lines of pigs in terms of growth and carcass characteristics may be affected by rearing environment (genetic × environment interaction). Aims: The present study compared the growth performance and carcass composition of pigs from two sire lines reared under constant thermoneutral (22°C; TN) or high ambient temperature (33°C; HT) conditions. Methods: Hampshire (HAM) and synthetic-cross (SYN) castrated male pigs (n = 12 per group; 32.0 ± 2.0 kg) were kept in individual pens at either 22°C (TN) or 33°C (HT) for 55 days (two experimental phases: 0-27 and 28-55 days) following an adaptation period of 7 days. Throughout the experimental period, growth performance and body composition (by dual-energy X-ray absorptiometry on Days 27 and 55) were assessed, and a range of other measurements (serum parameters and physiological responses), which were divided into four measurement groups, was taken on 9 days. Key results: Irrespective of genetic line (G), the pigs in the HT treatment had lower average daily feed intake values (P < 0.001, by 29% and 41%) than did the pigs in the TN treatment during both experimental phases (0-27 and 28-55 days). During the second growth phase, the average daily gain of the SYN pigs in the HT treatment was reduced by 50%, whereas that of the HAM pigs was reduced by 24% (P < 0.05 for G × ambient temperature (AT)). On Days 27 and 55, pig bodyweight was lower (P < 0.05) in the HT treatment than in the TN treatment. On Day 27, a G × AT interaction was detected for backfat thickness (P < 0.05); among the SYN pigs, the value of this trait was lower (16%; P < 0.05) in the HT treatment than in the TN treatment, while for the HAM pigs, it was not influenced by treatment type. Conclusion: Despite progeny from both genetic lines being affected negatively by high AT, the purebred HAM pigs were less affected by the high AT conditions than were the pigs from the synthetic line. Implication: The present findings suggest that individual farm conditions and AT are among the most important factors to consider before implementing a G. |
id |
UNSP_90822d07326b8af6cf17b7125ae11255 |
---|---|
oai_identifier_str |
oai:repositorio.unesp.br:11449/208293 |
network_acronym_str |
UNSP |
network_name_str |
Repositório Institucional da UNESP |
repository_id_str |
2946 |
spelling |
Performance and carcass composition of pigs from two sire lines are affected differently by ambient temperaturebreedinggeneticsheat stresspigsContext: Differences among breeds or lines of pigs in terms of growth and carcass characteristics may be affected by rearing environment (genetic × environment interaction). Aims: The present study compared the growth performance and carcass composition of pigs from two sire lines reared under constant thermoneutral (22°C; TN) or high ambient temperature (33°C; HT) conditions. Methods: Hampshire (HAM) and synthetic-cross (SYN) castrated male pigs (n = 12 per group; 32.0 ± 2.0 kg) were kept in individual pens at either 22°C (TN) or 33°C (HT) for 55 days (two experimental phases: 0-27 and 28-55 days) following an adaptation period of 7 days. Throughout the experimental period, growth performance and body composition (by dual-energy X-ray absorptiometry on Days 27 and 55) were assessed, and a range of other measurements (serum parameters and physiological responses), which were divided into four measurement groups, was taken on 9 days. Key results: Irrespective of genetic line (G), the pigs in the HT treatment had lower average daily feed intake values (P < 0.001, by 29% and 41%) than did the pigs in the TN treatment during both experimental phases (0-27 and 28-55 days). During the second growth phase, the average daily gain of the SYN pigs in the HT treatment was reduced by 50%, whereas that of the HAM pigs was reduced by 24% (P < 0.05 for G × ambient temperature (AT)). On Days 27 and 55, pig bodyweight was lower (P < 0.05) in the HT treatment than in the TN treatment. On Day 27, a G × AT interaction was detected for backfat thickness (P < 0.05); among the SYN pigs, the value of this trait was lower (16%; P < 0.05) in the HT treatment than in the TN treatment, while for the HAM pigs, it was not influenced by treatment type. Conclusion: Despite progeny from both genetic lines being affected negatively by high AT, the purebred HAM pigs were less affected by the high AT conditions than were the pigs from the synthetic line. Implication: The present findings suggest that individual farm conditions and AT are among the most important factors to consider before implementing a G.Federal Rural University of Rio de Janeiro Department of Animal Nutrition and Pastures, km07 Highway BR-405, SeropédicaSão Paulo State University (Unesp) School of Agricultural and Veterinarian Sciences, w/n Paulo Donato Castellane RoadUniversidade Federal de Viçosa Department of Animal Science, w/n Peter Henry Rolfs AvenueSão Paulo State University (Unesp) School of Agricultural and Veterinarian Sciences, w/n Paulo Donato Castellane RoadFederal Rural University of Rio de JaneiroUniversidade Estadual Paulista (Unesp)Universidade Federal de Viçosa (UFV)Sousa Dos Santos, Luan [UNESP]Reis Furtado Campos, Paulo HenriqueCândido Da Silva, Welex [UNESP]Veira, Alini Mari [UNESP]Fraga, Alicia Zem [UNESP]Caetano, Raphael Perini [UNESP]Hauschild, Luciano [UNESP]2021-06-25T11:09:48Z2021-06-25T11:09:48Z2021-03-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article551-559http://dx.doi.org/10.1071/AN20078Animal Production Science, v. 61, n. 6, p. 551-559, 2021.1836-57871836-0939http://hdl.handle.net/11449/20829310.1071/AN200782-s2.0-85098933218Scopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengAnimal Production Scienceinfo:eu-repo/semantics/openAccess2024-06-07T18:39:52Zoai:repositorio.unesp.br:11449/208293Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-05T14:08:43.421641Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Performance and carcass composition of pigs from two sire lines are affected differently by ambient temperature |
title |
Performance and carcass composition of pigs from two sire lines are affected differently by ambient temperature |
spellingShingle |
Performance and carcass composition of pigs from two sire lines are affected differently by ambient temperature Sousa Dos Santos, Luan [UNESP] breeding genetics heat stress pigs |
title_short |
Performance and carcass composition of pigs from two sire lines are affected differently by ambient temperature |
title_full |
Performance and carcass composition of pigs from two sire lines are affected differently by ambient temperature |
title_fullStr |
Performance and carcass composition of pigs from two sire lines are affected differently by ambient temperature |
title_full_unstemmed |
Performance and carcass composition of pigs from two sire lines are affected differently by ambient temperature |
title_sort |
Performance and carcass composition of pigs from two sire lines are affected differently by ambient temperature |
author |
Sousa Dos Santos, Luan [UNESP] |
author_facet |
Sousa Dos Santos, Luan [UNESP] Reis Furtado Campos, Paulo Henrique Cândido Da Silva, Welex [UNESP] Veira, Alini Mari [UNESP] Fraga, Alicia Zem [UNESP] Caetano, Raphael Perini [UNESP] Hauschild, Luciano [UNESP] |
author_role |
author |
author2 |
Reis Furtado Campos, Paulo Henrique Cândido Da Silva, Welex [UNESP] Veira, Alini Mari [UNESP] Fraga, Alicia Zem [UNESP] Caetano, Raphael Perini [UNESP] Hauschild, Luciano [UNESP] |
author2_role |
author author author author author author |
dc.contributor.none.fl_str_mv |
Federal Rural University of Rio de Janeiro Universidade Estadual Paulista (Unesp) Universidade Federal de Viçosa (UFV) |
dc.contributor.author.fl_str_mv |
Sousa Dos Santos, Luan [UNESP] Reis Furtado Campos, Paulo Henrique Cândido Da Silva, Welex [UNESP] Veira, Alini Mari [UNESP] Fraga, Alicia Zem [UNESP] Caetano, Raphael Perini [UNESP] Hauschild, Luciano [UNESP] |
dc.subject.por.fl_str_mv |
breeding genetics heat stress pigs |
topic |
breeding genetics heat stress pigs |
description |
Context: Differences among breeds or lines of pigs in terms of growth and carcass characteristics may be affected by rearing environment (genetic × environment interaction). Aims: The present study compared the growth performance and carcass composition of pigs from two sire lines reared under constant thermoneutral (22°C; TN) or high ambient temperature (33°C; HT) conditions. Methods: Hampshire (HAM) and synthetic-cross (SYN) castrated male pigs (n = 12 per group; 32.0 ± 2.0 kg) were kept in individual pens at either 22°C (TN) or 33°C (HT) for 55 days (two experimental phases: 0-27 and 28-55 days) following an adaptation period of 7 days. Throughout the experimental period, growth performance and body composition (by dual-energy X-ray absorptiometry on Days 27 and 55) were assessed, and a range of other measurements (serum parameters and physiological responses), which were divided into four measurement groups, was taken on 9 days. Key results: Irrespective of genetic line (G), the pigs in the HT treatment had lower average daily feed intake values (P < 0.001, by 29% and 41%) than did the pigs in the TN treatment during both experimental phases (0-27 and 28-55 days). During the second growth phase, the average daily gain of the SYN pigs in the HT treatment was reduced by 50%, whereas that of the HAM pigs was reduced by 24% (P < 0.05 for G × ambient temperature (AT)). On Days 27 and 55, pig bodyweight was lower (P < 0.05) in the HT treatment than in the TN treatment. On Day 27, a G × AT interaction was detected for backfat thickness (P < 0.05); among the SYN pigs, the value of this trait was lower (16%; P < 0.05) in the HT treatment than in the TN treatment, while for the HAM pigs, it was not influenced by treatment type. Conclusion: Despite progeny from both genetic lines being affected negatively by high AT, the purebred HAM pigs were less affected by the high AT conditions than were the pigs from the synthetic line. Implication: The present findings suggest that individual farm conditions and AT are among the most important factors to consider before implementing a G. |
publishDate |
2021 |
dc.date.none.fl_str_mv |
2021-06-25T11:09:48Z 2021-06-25T11:09:48Z 2021-03-01 |
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/10.1071/AN20078 Animal Production Science, v. 61, n. 6, p. 551-559, 2021. 1836-5787 1836-0939 http://hdl.handle.net/11449/208293 10.1071/AN20078 2-s2.0-85098933218 |
url |
http://dx.doi.org/10.1071/AN20078 http://hdl.handle.net/11449/208293 |
identifier_str_mv |
Animal Production Science, v. 61, n. 6, p. 551-559, 2021. 1836-5787 1836-0939 10.1071/AN20078 2-s2.0-85098933218 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Animal Production Science |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
551-559 |
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_ |
1808128321228111872 |