Neither altered incubation temperature during fetal development nor preferred rearing temperature improves leg bone characteristics of broilers
Autor(a) principal: | |
---|---|
Data de Publicação: | 2020 |
Outros Autores: | , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://dx.doi.org/10.1016/j.jtherbio.2020.102726 http://hdl.handle.net/11449/205186 |
Resumo: | The present study evaluated whether broiler femoral and tibiotarsal characteristics (as assessed at slaughter age) could be improved if birds were reared under their preferred temperature and whether continuous high or low incubation temperature during the fetal period improves bone characteristics of broilers reared under heat stress or thermal preference. Broiler breeder eggs were incubated from day 13 until hatching under cold (36 °C), control (37.5 °C), or hot (39 °C) temperatures. Under these conditions, the eggshell temperatures were 37.4 ± 0.1°C, 37.8 ± 0.15°C, and 38.8 ± 0.3°C, respectively. Then, broiler chicks were reared under control, preferred (determined previously in thermal preference test), or high temperatures. At day 42 of age, the broilers were weighed and euthanized, and femora and tibiotarsi collected to measure weight, length, diaphysis perimeter, breaking strength, maximum flexion, rigidity, ash, phosphorus, and calcium. Rearing under the preferred temperature did not affect broiler body weight or femoral and tibiotarsal characteristics (P > 0.05). In contrast, high rearing temperature, decreased the body weight, mineral contents of both bones, femoral breaking strength, and tibiotarsal rigidity (P < 0.05). Regarding incubation temperature effects, egg exposure to cold and hot temperatures during the fetal period minimized or avoided a few effects of high rearing temperature, such as those on femoral and tibiotarsal morphological characteristics, mineral composition, and mechanical properties at slaughter age (P < 0.05), but not all. In conclusion, rearing under the preferred broiler temperature did not improve the bone characteristics, and the negative effects of high rearing temperature on bone development were minimized but not completely prevented by high or low temperature incubation during the fetal period. |
id |
UNSP_9d951ff1ca7e784f4ed6a46118a9a5d1 |
---|---|
oai_identifier_str |
oai:repositorio.unesp.br:11449/205186 |
network_acronym_str |
UNSP |
network_name_str |
Repositório Institucional da UNESP |
repository_id_str |
2946 |
spelling |
Neither altered incubation temperature during fetal development nor preferred rearing temperature improves leg bone characteristics of broilersFemurHeat stressIncubation temperatureLeg bonesThermal preferenceTibiotarsusThe present study evaluated whether broiler femoral and tibiotarsal characteristics (as assessed at slaughter age) could be improved if birds were reared under their preferred temperature and whether continuous high or low incubation temperature during the fetal period improves bone characteristics of broilers reared under heat stress or thermal preference. Broiler breeder eggs were incubated from day 13 until hatching under cold (36 °C), control (37.5 °C), or hot (39 °C) temperatures. Under these conditions, the eggshell temperatures were 37.4 ± 0.1°C, 37.8 ± 0.15°C, and 38.8 ± 0.3°C, respectively. Then, broiler chicks were reared under control, preferred (determined previously in thermal preference test), or high temperatures. At day 42 of age, the broilers were weighed and euthanized, and femora and tibiotarsi collected to measure weight, length, diaphysis perimeter, breaking strength, maximum flexion, rigidity, ash, phosphorus, and calcium. Rearing under the preferred temperature did not affect broiler body weight or femoral and tibiotarsal characteristics (P > 0.05). In contrast, high rearing temperature, decreased the body weight, mineral contents of both bones, femoral breaking strength, and tibiotarsal rigidity (P < 0.05). Regarding incubation temperature effects, egg exposure to cold and hot temperatures during the fetal period minimized or avoided a few effects of high rearing temperature, such as those on femoral and tibiotarsal morphological characteristics, mineral composition, and mechanical properties at slaughter age (P < 0.05), but not all. In conclusion, rearing under the preferred broiler temperature did not improve the bone characteristics, and the negative effects of high rearing temperature on bone development were minimized but not completely prevented by high or low temperature incubation during the fetal period.Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)Department of Animal Morphology and Physiology School of Agricultural and Veterinary Sciences São Paulo State University – UNESP, Access Road Professor Paulo Donato Castellane S/n Km5Faculty Marechal Rondon - FARON Medicine Veterinary Sector, Marechal Rondon Avenue N.10058Department of Animal Morphology and Physiology School of Agricultural and Veterinary Sciences São Paulo State University – UNESP, Access Road Professor Paulo Donato Castellane S/n Km5FAPESP: 2011/18373–2FAPESP: 2012/24156-4Universidade Estadual Paulista (Unesp)Medicine Veterinary SectorMorita, Viviane S. [UNESP]Almeida, Ayla R. [UNESP]Matos Junior, João B.Vicentini, Tamiris I. [UNESP]Zanirato, Gisele L. [UNESP]Boleli, Isabel C. [UNESP]2021-06-25T10:11:18Z2021-06-25T10:11:18Z2020-10-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articlehttp://dx.doi.org/10.1016/j.jtherbio.2020.102726Journal of Thermal Biology, v. 93.1879-09920306-4565http://hdl.handle.net/11449/20518610.1016/j.jtherbio.2020.1027262-s2.0-85091207033Scopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengJournal of Thermal Biologyinfo:eu-repo/semantics/openAccess2021-10-23T11:43:42Zoai:repositorio.unesp.br:11449/205186Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-05T20:03:58.094053Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Neither altered incubation temperature during fetal development nor preferred rearing temperature improves leg bone characteristics of broilers |
title |
Neither altered incubation temperature during fetal development nor preferred rearing temperature improves leg bone characteristics of broilers |
spellingShingle |
Neither altered incubation temperature during fetal development nor preferred rearing temperature improves leg bone characteristics of broilers Morita, Viviane S. [UNESP] Femur Heat stress Incubation temperature Leg bones Thermal preference Tibiotarsus |
title_short |
Neither altered incubation temperature during fetal development nor preferred rearing temperature improves leg bone characteristics of broilers |
title_full |
Neither altered incubation temperature during fetal development nor preferred rearing temperature improves leg bone characteristics of broilers |
title_fullStr |
Neither altered incubation temperature during fetal development nor preferred rearing temperature improves leg bone characteristics of broilers |
title_full_unstemmed |
Neither altered incubation temperature during fetal development nor preferred rearing temperature improves leg bone characteristics of broilers |
title_sort |
Neither altered incubation temperature during fetal development nor preferred rearing temperature improves leg bone characteristics of broilers |
author |
Morita, Viviane S. [UNESP] |
author_facet |
Morita, Viviane S. [UNESP] Almeida, Ayla R. [UNESP] Matos Junior, João B. Vicentini, Tamiris I. [UNESP] Zanirato, Gisele L. [UNESP] Boleli, Isabel C. [UNESP] |
author_role |
author |
author2 |
Almeida, Ayla R. [UNESP] Matos Junior, João B. Vicentini, Tamiris I. [UNESP] Zanirato, Gisele L. [UNESP] Boleli, Isabel C. [UNESP] |
author2_role |
author author author author author |
dc.contributor.none.fl_str_mv |
Universidade Estadual Paulista (Unesp) Medicine Veterinary Sector |
dc.contributor.author.fl_str_mv |
Morita, Viviane S. [UNESP] Almeida, Ayla R. [UNESP] Matos Junior, João B. Vicentini, Tamiris I. [UNESP] Zanirato, Gisele L. [UNESP] Boleli, Isabel C. [UNESP] |
dc.subject.por.fl_str_mv |
Femur Heat stress Incubation temperature Leg bones Thermal preference Tibiotarsus |
topic |
Femur Heat stress Incubation temperature Leg bones Thermal preference Tibiotarsus |
description |
The present study evaluated whether broiler femoral and tibiotarsal characteristics (as assessed at slaughter age) could be improved if birds were reared under their preferred temperature and whether continuous high or low incubation temperature during the fetal period improves bone characteristics of broilers reared under heat stress or thermal preference. Broiler breeder eggs were incubated from day 13 until hatching under cold (36 °C), control (37.5 °C), or hot (39 °C) temperatures. Under these conditions, the eggshell temperatures were 37.4 ± 0.1°C, 37.8 ± 0.15°C, and 38.8 ± 0.3°C, respectively. Then, broiler chicks were reared under control, preferred (determined previously in thermal preference test), or high temperatures. At day 42 of age, the broilers were weighed and euthanized, and femora and tibiotarsi collected to measure weight, length, diaphysis perimeter, breaking strength, maximum flexion, rigidity, ash, phosphorus, and calcium. Rearing under the preferred temperature did not affect broiler body weight or femoral and tibiotarsal characteristics (P > 0.05). In contrast, high rearing temperature, decreased the body weight, mineral contents of both bones, femoral breaking strength, and tibiotarsal rigidity (P < 0.05). Regarding incubation temperature effects, egg exposure to cold and hot temperatures during the fetal period minimized or avoided a few effects of high rearing temperature, such as those on femoral and tibiotarsal morphological characteristics, mineral composition, and mechanical properties at slaughter age (P < 0.05), but not all. In conclusion, rearing under the preferred broiler temperature did not improve the bone characteristics, and the negative effects of high rearing temperature on bone development were minimized but not completely prevented by high or low temperature incubation during the fetal period. |
publishDate |
2020 |
dc.date.none.fl_str_mv |
2020-10-01 2021-06-25T10:11:18Z 2021-06-25T10:11:18Z |
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/10.1016/j.jtherbio.2020.102726 Journal of Thermal Biology, v. 93. 1879-0992 0306-4565 http://hdl.handle.net/11449/205186 10.1016/j.jtherbio.2020.102726 2-s2.0-85091207033 |
url |
http://dx.doi.org/10.1016/j.jtherbio.2020.102726 http://hdl.handle.net/11449/205186 |
identifier_str_mv |
Journal of Thermal Biology, v. 93. 1879-0992 0306-4565 10.1016/j.jtherbio.2020.102726 2-s2.0-85091207033 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Journal of Thermal Biology |
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_ |
1808129156330815488 |