Effect of protease supplementation on production performance of laying hens

Detalhes bibliográficos
Autor(a) principal: Vieira Filho, Javer Alves
Data de Publicação: 2015
Outros Autores: Geraldo, Adriano, Machado, Luiz Carlos, Brito, Jerônimo Ávito de, Bertechini, Antônio Gilberto, Murakami, Elise Saori Floriano
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Institucional da UFLA
Texto Completo: http://repositorio.ufla.br/jspui/handle/1/12768
Resumo: The experiment was conducted with the objective of evaluating the effect of protease enzyme supplementation on performance parameters and quality shell of laying hens. We used 240 Isa Brown commercial laying hens with 44 weeks of age. A completely randomized split-plot design (5 periods of 21 days) with four treatments and six replications (10 hens per replication) was used. The experimental diets were formulated according to the requirements of the breed. The following parameters were evaluated: egg production, feed intake, feed conversion, average egg weight, egg loss, specific gravity, percentage and shell thickness. After collection, the data were analyzed with SISVAR Statistical Package, and the means compared by SNK test at 5% probability. It was concluded that supplementation of diets low in nutrients with 500 g ton-1 of protease (100 U g-1), provides egg production and feed conversion rates similar to those obtained in laying hens fed diet with the nutritional level recommended for the breed. However, protease supplementation did not show effect on egg shell quality.
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spelling Effect of protease supplementation on production performance of laying hensSuplementação de protease sobre o desempenho produtivo de poedeirasLaying hens farmingGalinhas poedeiras - NutriçãoOvos - Qualidade da cascaLaying hens - NutritionEggs - Bark qualityThe experiment was conducted with the objective of evaluating the effect of protease enzyme supplementation on performance parameters and quality shell of laying hens. We used 240 Isa Brown commercial laying hens with 44 weeks of age. A completely randomized split-plot design (5 periods of 21 days) with four treatments and six replications (10 hens per replication) was used. The experimental diets were formulated according to the requirements of the breed. The following parameters were evaluated: egg production, feed intake, feed conversion, average egg weight, egg loss, specific gravity, percentage and shell thickness. After collection, the data were analyzed with SISVAR Statistical Package, and the means compared by SNK test at 5% probability. It was concluded that supplementation of diets low in nutrients with 500 g ton-1 of protease (100 U g-1), provides egg production and feed conversion rates similar to those obtained in laying hens fed diet with the nutritional level recommended for the breed. However, protease supplementation did not show effect on egg shell quality.O experimento foi conduzido com o objetivo de avaliar o efeito da suplementação da enzima protease sobre o desempenho produtivo e a qualidade de casca de poedeiras semipesadas. Utilizaram-se 240 poedeiras da linhagem comercial Isa Brown com 44 semanas de idade. Foi adotado um delineamento inteiramente casualizado em esquema de parcela subdividida no tempo (5 períodos de 21 dias cada) com quatro tratamentos e seis repetições (10 aves por repetição). Foram avaliados: produção de ovos, consumo de ração, conversão alimentar, peso médio dos ovos, perda de ovos, gravidade específica, porcentagem e espessura de casca. Após a coleta, os dados foram submetidos à análise pelo pacote estatístico SISVAR com as médias comparadas pelo teste de SNK a 5% de probabilidade. Para as variáveis de qualidade externa dos ovos, não houve diferença significativa (p > 0,05) dos tratamentos. Conclui-se que a suplementação de 500 g ton-1 da protease (100 U g-1), em dietas com redução dos níveis nutricionais, proporciona produção de ovos e conversão alimentar semelhantes aos obtido em poedeiras semipesadas, recebendo ração com níveis nutricionais indicados pelo manual da linhagem, porém não mostra efeito sobre a qualidade de casca dos ovos.Universidade Estadual de Maringá2017-04-26T13:29:07Z2017-04-26T13:29:07Z2015-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfVIEIRA FILHO, J. A. et al. Effect of protease supplementation on production performance of laying hens. Acta Scientiarum: Animal Sciences, Maringá, v. 37, n. 1, p. 29-33, Jan./Mar. 2015.http://repositorio.ufla.br/jspui/handle/1/12768Acta Scientiarum. Animal Sciencesreponame:Repositório Institucional da UFLAinstname:Universidade Federal de Lavras (UFLA)instacron:UFLAVieira Filho, Javer AlvesGeraldo, AdrianoMachado, Luiz CarlosBrito, Jerônimo Ávito deBertechini, Antônio GilbertoMurakami, Elise Saori Florianoinfo:eu-repo/semantics/openAccesseng2017-04-26T13:29:07Zoai:localhost:1/12768Repositório InstitucionalPUBhttp://repositorio.ufla.br/oai/requestnivaldo@ufla.br || repositorio.biblioteca@ufla.bropendoar:2017-04-26T13:29:07Repositório Institucional da UFLA - Universidade Federal de Lavras (UFLA)false
dc.title.none.fl_str_mv Effect of protease supplementation on production performance of laying hens
Suplementação de protease sobre o desempenho produtivo de poedeiras
title Effect of protease supplementation on production performance of laying hens
spellingShingle Effect of protease supplementation on production performance of laying hens
Vieira Filho, Javer Alves
Laying hens farming
Galinhas poedeiras - Nutrição
Ovos - Qualidade da casca
Laying hens - Nutrition
Eggs - Bark quality
title_short Effect of protease supplementation on production performance of laying hens
title_full Effect of protease supplementation on production performance of laying hens
title_fullStr Effect of protease supplementation on production performance of laying hens
title_full_unstemmed Effect of protease supplementation on production performance of laying hens
title_sort Effect of protease supplementation on production performance of laying hens
author Vieira Filho, Javer Alves
author_facet Vieira Filho, Javer Alves
Geraldo, Adriano
Machado, Luiz Carlos
Brito, Jerônimo Ávito de
Bertechini, Antônio Gilberto
Murakami, Elise Saori Floriano
author_role author
author2 Geraldo, Adriano
Machado, Luiz Carlos
Brito, Jerônimo Ávito de
Bertechini, Antônio Gilberto
Murakami, Elise Saori Floriano
author2_role author
author
author
author
author
dc.contributor.author.fl_str_mv Vieira Filho, Javer Alves
Geraldo, Adriano
Machado, Luiz Carlos
Brito, Jerônimo Ávito de
Bertechini, Antônio Gilberto
Murakami, Elise Saori Floriano
dc.subject.por.fl_str_mv Laying hens farming
Galinhas poedeiras - Nutrição
Ovos - Qualidade da casca
Laying hens - Nutrition
Eggs - Bark quality
topic Laying hens farming
Galinhas poedeiras - Nutrição
Ovos - Qualidade da casca
Laying hens - Nutrition
Eggs - Bark quality
description The experiment was conducted with the objective of evaluating the effect of protease enzyme supplementation on performance parameters and quality shell of laying hens. We used 240 Isa Brown commercial laying hens with 44 weeks of age. A completely randomized split-plot design (5 periods of 21 days) with four treatments and six replications (10 hens per replication) was used. The experimental diets were formulated according to the requirements of the breed. The following parameters were evaluated: egg production, feed intake, feed conversion, average egg weight, egg loss, specific gravity, percentage and shell thickness. After collection, the data were analyzed with SISVAR Statistical Package, and the means compared by SNK test at 5% probability. It was concluded that supplementation of diets low in nutrients with 500 g ton-1 of protease (100 U g-1), provides egg production and feed conversion rates similar to those obtained in laying hens fed diet with the nutritional level recommended for the breed. However, protease supplementation did not show effect on egg shell quality.
publishDate 2015
dc.date.none.fl_str_mv 2015-01
2017-04-26T13:29:07Z
2017-04-26T13:29:07Z
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 VIEIRA FILHO, J. A. et al. Effect of protease supplementation on production performance of laying hens. Acta Scientiarum: Animal Sciences, Maringá, v. 37, n. 1, p. 29-33, Jan./Mar. 2015.
http://repositorio.ufla.br/jspui/handle/1/12768
identifier_str_mv VIEIRA FILHO, J. A. et al. Effect of protease supplementation on production performance of laying hens. Acta Scientiarum: Animal Sciences, Maringá, v. 37, n. 1, p. 29-33, Jan./Mar. 2015.
url http://repositorio.ufla.br/jspui/handle/1/12768
dc.language.iso.fl_str_mv eng
language eng
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Universidade Estadual de Maringá
publisher.none.fl_str_mv Universidade Estadual de Maringá
dc.source.none.fl_str_mv Acta Scientiarum. Animal Sciences
reponame:Repositório Institucional da UFLA
instname:Universidade Federal de Lavras (UFLA)
instacron:UFLA
instname_str Universidade Federal de Lavras (UFLA)
instacron_str UFLA
institution UFLA
reponame_str Repositório Institucional da UFLA
collection Repositório Institucional da UFLA
repository.name.fl_str_mv Repositório Institucional da UFLA - Universidade Federal de Lavras (UFLA)
repository.mail.fl_str_mv nivaldo@ufla.br || repositorio.biblioteca@ufla.br
_version_ 1807835204028465152

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