Probiotics on performance, intestinal morphology and carcass characteristics of broiler chickens raised with lower or higher environmental challenge
Autor(a) principal: | |
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Data de Publicação: | 2018 |
Outros Autores: | , , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://dx.doi.org/10.4067/s0719-81322018000100107 http://hdl.handle.net/11449/232869 |
Resumo: | This study aimed to evaluate the effect of probiotics on performance, intestinal morphology and carcass characteristics of broiler chickens housed on lower or higher environmental challenge. Three hundred male Cobb chicks were distributed into four groups in completely randomised design with treatments arranged in a 2 × 2 factorial scheme to evaluate effects of two diets (with or without probiotics) and two environmental conditions (lower or higher challenge), totaling four treatments with five replications with 15 birds per box. Probiotics were added on diets and were composed of Lactobacillus acidophilus, Bacillus subtilis, Bifidobacterium bifidum and Enterococcus faecium. The environment with lower challenge was made up of new wood shavings used as litter, low bird density (8 birds/m2) and daily-cleaned bell drinkers. The environment with higher challenge was made up of re-used wood shavings used as litter (after three broods of broilers), bird density of 16 birds/m2 with bell drinkers cleaned every two days. No significant interaction between diet and environmental challenge was found for any of the variables evaluated. Performance, slaughterhouse variables and chemical carcass composition were not affected by the use of probiotics. Chicks receiving diets without probiotics had lower intestinal crypt depth (267.1 vs. 316.6 μm, P=0.0068). Birds raised in the environment with higher challenge decreased feed intake (4,660 vs 5,020 g, P=0.0422), weight gain (2,610 vs 2,810 g, P= 0.0054), drumstick and thigh yield (21.98 vs 24.14 %, P=0.0354), and increased crypt depth (325.2 vs 258.5 μm P=0.0009). In conclusion, the probiotic does not promote satisfactory improvements, regardless of the environmental challenge. |
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Probiotics on performance, intestinal morphology and carcass characteristics of broiler chickens raised with lower or higher environmental challengeAdditivesIntestinal healthPoultrySanitary challengeThis study aimed to evaluate the effect of probiotics on performance, intestinal morphology and carcass characteristics of broiler chickens housed on lower or higher environmental challenge. Three hundred male Cobb chicks were distributed into four groups in completely randomised design with treatments arranged in a 2 × 2 factorial scheme to evaluate effects of two diets (with or without probiotics) and two environmental conditions (lower or higher challenge), totaling four treatments with five replications with 15 birds per box. Probiotics were added on diets and were composed of Lactobacillus acidophilus, Bacillus subtilis, Bifidobacterium bifidum and Enterococcus faecium. The environment with lower challenge was made up of new wood shavings used as litter, low bird density (8 birds/m2) and daily-cleaned bell drinkers. The environment with higher challenge was made up of re-used wood shavings used as litter (after three broods of broilers), bird density of 16 birds/m2 with bell drinkers cleaned every two days. No significant interaction between diet and environmental challenge was found for any of the variables evaluated. Performance, slaughterhouse variables and chemical carcass composition were not affected by the use of probiotics. Chicks receiving diets without probiotics had lower intestinal crypt depth (267.1 vs. 316.6 μm, P=0.0068). Birds raised in the environment with higher challenge decreased feed intake (4,660 vs 5,020 g, P=0.0422), weight gain (2,610 vs 2,810 g, P= 0.0054), drumstick and thigh yield (21.98 vs 24.14 %, P=0.0354), and increased crypt depth (325.2 vs 258.5 μm P=0.0009). In conclusion, the probiotic does not promote satisfactory improvements, regardless of the environmental challenge.University of Western São PauloUniversity of West Santa CatarinaSão Paulo State University College of Agricultural and Technological SciencesDepartment of Animal Nutrition and Production University of São PauloSão Paulo State University College of Agricultural and Technological SciencesUniversity of Western São PauloUniversity of West Santa CatarinaUniversidade Estadual Paulista (UNESP)Universidade de São Paulo (USP)De Souza, Lilian F.A.Araújo, Denise N.Stefani, Lenita M.Giometti, Ines C.Cruz-Polycarpo, Valquíria C. [UNESP]Polycarpo, Gustavo [UNESP]Burbarelli, Maria F.2022-04-30T17:10:31Z2022-04-30T17:10:31Z2018-01-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article35-41http://dx.doi.org/10.4067/s0719-81322018000100107Austral Journal of Veterinary Sciences, v. 50, n. 1, p. 35-41, 2018.0719-81320719-8000http://hdl.handle.net/11449/23286910.4067/s0719-813220180001001072-s2.0-85063647620Scopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengAustral Journal of Veterinary Sciencesinfo:eu-repo/semantics/openAccess2024-05-07T13:47:06Zoai:repositorio.unesp.br:11449/232869Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-05T14:48:16.148291Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Probiotics on performance, intestinal morphology and carcass characteristics of broiler chickens raised with lower or higher environmental challenge |
title |
Probiotics on performance, intestinal morphology and carcass characteristics of broiler chickens raised with lower or higher environmental challenge |
spellingShingle |
Probiotics on performance, intestinal morphology and carcass characteristics of broiler chickens raised with lower or higher environmental challenge De Souza, Lilian F.A. Additives Intestinal health Poultry Sanitary challenge |
title_short |
Probiotics on performance, intestinal morphology and carcass characteristics of broiler chickens raised with lower or higher environmental challenge |
title_full |
Probiotics on performance, intestinal morphology and carcass characteristics of broiler chickens raised with lower or higher environmental challenge |
title_fullStr |
Probiotics on performance, intestinal morphology and carcass characteristics of broiler chickens raised with lower or higher environmental challenge |
title_full_unstemmed |
Probiotics on performance, intestinal morphology and carcass characteristics of broiler chickens raised with lower or higher environmental challenge |
title_sort |
Probiotics on performance, intestinal morphology and carcass characteristics of broiler chickens raised with lower or higher environmental challenge |
author |
De Souza, Lilian F.A. |
author_facet |
De Souza, Lilian F.A. Araújo, Denise N. Stefani, Lenita M. Giometti, Ines C. Cruz-Polycarpo, Valquíria C. [UNESP] Polycarpo, Gustavo [UNESP] Burbarelli, Maria F. |
author_role |
author |
author2 |
Araújo, Denise N. Stefani, Lenita M. Giometti, Ines C. Cruz-Polycarpo, Valquíria C. [UNESP] Polycarpo, Gustavo [UNESP] Burbarelli, Maria F. |
author2_role |
author author author author author author |
dc.contributor.none.fl_str_mv |
University of Western São Paulo University of West Santa Catarina Universidade Estadual Paulista (UNESP) Universidade de São Paulo (USP) |
dc.contributor.author.fl_str_mv |
De Souza, Lilian F.A. Araújo, Denise N. Stefani, Lenita M. Giometti, Ines C. Cruz-Polycarpo, Valquíria C. [UNESP] Polycarpo, Gustavo [UNESP] Burbarelli, Maria F. |
dc.subject.por.fl_str_mv |
Additives Intestinal health Poultry Sanitary challenge |
topic |
Additives Intestinal health Poultry Sanitary challenge |
description |
This study aimed to evaluate the effect of probiotics on performance, intestinal morphology and carcass characteristics of broiler chickens housed on lower or higher environmental challenge. Three hundred male Cobb chicks were distributed into four groups in completely randomised design with treatments arranged in a 2 × 2 factorial scheme to evaluate effects of two diets (with or without probiotics) and two environmental conditions (lower or higher challenge), totaling four treatments with five replications with 15 birds per box. Probiotics were added on diets and were composed of Lactobacillus acidophilus, Bacillus subtilis, Bifidobacterium bifidum and Enterococcus faecium. The environment with lower challenge was made up of new wood shavings used as litter, low bird density (8 birds/m2) and daily-cleaned bell drinkers. The environment with higher challenge was made up of re-used wood shavings used as litter (after three broods of broilers), bird density of 16 birds/m2 with bell drinkers cleaned every two days. No significant interaction between diet and environmental challenge was found for any of the variables evaluated. Performance, slaughterhouse variables and chemical carcass composition were not affected by the use of probiotics. Chicks receiving diets without probiotics had lower intestinal crypt depth (267.1 vs. 316.6 μm, P=0.0068). Birds raised in the environment with higher challenge decreased feed intake (4,660 vs 5,020 g, P=0.0422), weight gain (2,610 vs 2,810 g, P= 0.0054), drumstick and thigh yield (21.98 vs 24.14 %, P=0.0354), and increased crypt depth (325.2 vs 258.5 μm P=0.0009). In conclusion, the probiotic does not promote satisfactory improvements, regardless of the environmental challenge. |
publishDate |
2018 |
dc.date.none.fl_str_mv |
2018-01-01 2022-04-30T17:10:31Z 2022-04-30T17:10:31Z |
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/10.4067/s0719-81322018000100107 Austral Journal of Veterinary Sciences, v. 50, n. 1, p. 35-41, 2018. 0719-8132 0719-8000 http://hdl.handle.net/11449/232869 10.4067/s0719-81322018000100107 2-s2.0-85063647620 |
url |
http://dx.doi.org/10.4067/s0719-81322018000100107 http://hdl.handle.net/11449/232869 |
identifier_str_mv |
Austral Journal of Veterinary Sciences, v. 50, n. 1, p. 35-41, 2018. 0719-8132 0719-8000 10.4067/s0719-81322018000100107 2-s2.0-85063647620 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Austral Journal of Veterinary Sciences |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
35-41 |
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_ |
1808128420543987712 |