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 | Acesso ao texto completo restrito à biblioteca da Embrapa Suínos e Aves. Para informações adicionais entre em contato com cnpsa.biblioteca@embrapa.br. |
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Registro Completo |
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Biblioteca(s): |
Embrapa Suínos e Aves. |
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Data corrente: |
15/03/2016 |
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Data da última atualização: |
15/03/2016 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
BRAINER, M. M. de A.; RABELLO, C. B.; SANTOS, M. J. B. dos; LUDKE, J. V.; LOPES, C. da C.; MEDEIROS, V. R. L. de; COSTA, F. G. P. |
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Afiliação: |
MÔNICA MARIA DE ALMEIDA BRAINER, IFGoiano/Câmpus Ceres; CARLOS BOA VIAGEM RABELLO, UFRPE; MARCOS JOSÉ BATISTA DOS SANTOS, UFRPE; JORGE VITOR LUDKE, CNPSA; CLÁUDIA DA COSTA LOPES, UFRPE; WALESKA ROCHA LEITE DE MEDEIROS, UFRPE; FERNANDO GUILHERME PERAZZO COSTA, UFPB/Centro de Ciências Agrárias. |
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Título: |
Crude protein requirements of free-range laying hens. |
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Ano de publicação: |
2015 |
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Fonte/Imprenta: |
Animal Production Science, 21 may 2015. |
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DOI: |
http://dx.doi.org/10.1071/AN14890 |
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Idioma: |
Inglês |
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Conteúdo: |
he goal of this study was to estimate the crude protein (CP) requirement for the maintenance, weight gain and egg production of free-range hens, and produce a predictive protein requirement equation. A linear regression equation of the nitrogen that was retained in the body relative to the production of eggs as a function of different nitrogen intake levels (ad libitum, 80%, 60% and 40% of the original ad libitum intake) provided the nitrogen requirement for maintenance. This relationship was determined at the x-axis intercept, and the efficiency of dietary nitrogen utilisation was expressed by the regression coefficient. The CP requirement for weight gain was estimated as a function of the nitrogen content in the carcass, and the dietary nitrogen utilisation efficiency was found after each week?s slaughter. The CP requirement for egg production was determined by comparing egg protein concentrations with the efficiency of egg protein deposition. The requirements and efficiency of maintenance protein utilisation were 4.7 g CP/kg0.75.day and 56%, respectively. Because there were no changes in the live bodyweights and nitrogen contents of bird carcasses, the CP requirement and efficiency value for weight gain were not estimated. The protein requirement and utilisation efficiency for egg production were 0.18 g CP/g egg mass (EM) produced and 62%, respectively. From the requirements that were estimated in the present study, the following equation can be used to predict the protein requirements of free-range hens during the laying phase: CP = 4.7 × W0.75 + 0.18 × EM (g/bird.day). Menoshe goal of this study was to estimate the crude protein (CP) requirement for the maintenance, weight gain and egg production of free-range hens, and produce a predictive protein requirement equation. A linear regression equation of the nitrogen that was retained in the body relative to the production of eggs as a function of different nitrogen intake levels (ad libitum, 80%, 60% and 40% of the original ad libitum intake) provided the nitrogen requirement for maintenance. This relationship was determined at the x-axis intercept, and the efficiency of dietary nitrogen utilisation was expressed by the regression coefficient. The CP requirement for weight gain was estimated as a function of the nitrogen content in the carcass, and the dietary nitrogen utilisation efficiency was found after each week?s slaughter. The CP requirement for egg production was determined by comparing egg protein concentrations with the efficiency of egg protein deposition. The requirements and efficiency of maintenance protein utilisation were 4.7 g CP/kg0.75.day and 56%, respectively. Because there were no changes in the live bodyweights and nitrogen contents of bird carcasses, the CP requirement and efficiency value for weight gain were not estimated. The protein requirement and utilisation efficiency for egg production were 0.18 g CP/g egg mass (EM) produced and 62%, respectively. From the requirements that were estimated in the present study, the following equation can be used to predict the protei... Mostrar Tudo |
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Thesagro: |
Galinha para postura; Nutrição animal. |
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Thesaurus Nal: |
Animal nutrition; Laying hens. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 02334naa a2200253 a 4500
001 2040903
005 2016-03-15
008 2015 bl uuuu u00u1 u #d
024 7 $ahttp://dx.doi.org/10.1071/AN14890$2DOI
100 1 $aBRAINER, M. M. de A.
245 $aCrude protein requirements of free-range laying hens.$h[electronic resource]
260 $c2015
520 $ahe goal of this study was to estimate the crude protein (CP) requirement for the maintenance, weight gain and egg production of free-range hens, and produce a predictive protein requirement equation. A linear regression equation of the nitrogen that was retained in the body relative to the production of eggs as a function of different nitrogen intake levels (ad libitum, 80%, 60% and 40% of the original ad libitum intake) provided the nitrogen requirement for maintenance. This relationship was determined at the x-axis intercept, and the efficiency of dietary nitrogen utilisation was expressed by the regression coefficient. The CP requirement for weight gain was estimated as a function of the nitrogen content in the carcass, and the dietary nitrogen utilisation efficiency was found after each week?s slaughter. The CP requirement for egg production was determined by comparing egg protein concentrations with the efficiency of egg protein deposition. The requirements and efficiency of maintenance protein utilisation were 4.7 g CP/kg0.75.day and 56%, respectively. Because there were no changes in the live bodyweights and nitrogen contents of bird carcasses, the CP requirement and efficiency value for weight gain were not estimated. The protein requirement and utilisation efficiency for egg production were 0.18 g CP/g egg mass (EM) produced and 62%, respectively. From the requirements that were estimated in the present study, the following equation can be used to predict the protein requirements of free-range hens during the laying phase: CP = 4.7 × W0.75 + 0.18 × EM (g/bird.day).
650 $aAnimal nutrition
650 $aLaying hens
650 $aGalinha para postura
650 $aNutrição animal
700 1 $aRABELLO, C. B.
700 1 $aSANTOS, M. J. B. dos
700 1 $aLUDKE, J. V.
700 1 $aLOPES, C. da C.
700 1 $aMEDEIROS, V. R. L. de
700 1 $aCOSTA, F. G. P.
773 $tAnimal Production Science, 21 may 2015.
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Embrapa Suínos e Aves (CNPSA) |
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| Acesso ao texto completo restrito à biblioteca da Embrapa Suínos e Aves. Para informações adicionais entre em contato com cnpsa.biblioteca@embrapa.br. |
Registro Completo
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Biblioteca(s): |
Embrapa Suínos e Aves. |
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Data corrente: |
06/11/1997 |
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Data da última atualização: |
20/12/2011 |
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Autoria: |
BONETT, L. P.; MONTICELLI, C. J. (ed.). |
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Afiliação: |
CICERO JULIANO MONTICELLI, CNPSA. |
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Título: |
Suínos: o produtor pergunta, a Embrapa responde. |
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Ano de publicação: |
1997 |
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Fonte/Imprenta: |
Concordia: EMBRAPA-CNPSA; Brasilia: EMBRAPA-SPI, 1997. |
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Páginas: |
243 p. |
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Série: |
(Colecao 500 perguntas 500 respostas) |
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ISBN: |
85-7383-010-7 |
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Idioma: |
Português |
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Conteúdo: |
A Embrapa Suinos e Aves tem a satisfacao de apresentar a publicacao suinos: 500 perguntas e 500 respostas - o produtor pergunta, a Embrapa responde, em cumprimento de sua missao maior que e' gerar e promover conhecimentos, tecnologias, servicos e insumos para o desenvolvimento da suinocultura e avicultura, em beneficio da sociedade. A suinocultura e' uma atividade que exige muita dedicacao do criador para alcancar bons indices de produtividade e, em consequencia, melhores resultados economicos. Esta publicacao visa dirimir as duvidas mais comuns sobre essa atividade, contribuindo para o seu aperfeicoamento. As perguntas contidas neste trabalho foram retiradas de 4920 cartas enviadas a Embrapa Suinos e Aves, de 1989 a 1996, por agricultores, tecnicos, donas de casa, estudantes, professores, entre outros. As perguntas e respostas conferem praticidade a informacao, fazendo desta obra uma valiosa fonte de consulta. |
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Palavras-Chave: |
Alimentacao animal; Animal honsing; Animal sanity; Aspecto econômico; Brasil; Economic situation; Feed; Feeding; Food; Genetic; Improvement; Management; Melhoramento genetico; Pig; Production; Production system; Resíduo animal; Sanidade; Sanity; Suinos; Swin; Tecnologia da carne; Veterinary. |
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Thesagro: |
Água; Alimentação; Alimento Animal; Animal; Carne; Criação; Doença; Genética; Instalação Para Animal; Manejo; Melhoramento Genético Animal; Nutrição; Nutrição Animal; Produção; Produção animal; Reprodução; Sanidade Animal; Sistema de Produção; Suíno; Suinocultura; Tecnologia; Tecnologia de Alimento; Vacina; Veterinária. |
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Thesaurus NAL: |
animal breeding; animal diseases; animal health; animal housing; animal husbandry; animal nutrition; Animal production; beef; breeding; breeding methods; breeds; foods; genetics; livestock; meat; nutrition; pork; reproduction; swine; technology. |
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Categoria do assunto: |
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L Ciência Animal e Produtos de Origem Animal |
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Marc: |
LEADER 03262nam a2200961 a 4500
001 1433193
005 2011-12-20
008 1997 bl uuuu 00u1 u #d
020 $a85-7383-010-7
100 1 $aBONETT, L. P.
245 $aSuínos$bo produtor pergunta, a Embrapa responde.
260 $aConcordia: EMBRAPA-CNPSA; Brasilia: EMBRAPA-SPI$c1997
300 $a243 p.
490 $a(Colecao 500 perguntas 500 respostas)
520 $aA Embrapa Suinos e Aves tem a satisfacao de apresentar a publicacao suinos: 500 perguntas e 500 respostas - o produtor pergunta, a Embrapa responde, em cumprimento de sua missao maior que e' gerar e promover conhecimentos, tecnologias, servicos e insumos para o desenvolvimento da suinocultura e avicultura, em beneficio da sociedade. A suinocultura e' uma atividade que exige muita dedicacao do criador para alcancar bons indices de produtividade e, em consequencia, melhores resultados economicos. Esta publicacao visa dirimir as duvidas mais comuns sobre essa atividade, contribuindo para o seu aperfeicoamento. As perguntas contidas neste trabalho foram retiradas de 4920 cartas enviadas a Embrapa Suinos e Aves, de 1989 a 1996, por agricultores, tecnicos, donas de casa, estudantes, professores, entre outros. As perguntas e respostas conferem praticidade a informacao, fazendo desta obra uma valiosa fonte de consulta.
650 $aanimal breeding
650 $aanimal diseases
650 $aanimal health
650 $aanimal housing
650 $aanimal husbandry
650 $aanimal nutrition
650 $aAnimal production
650 $abeef
650 $abreeding
650 $abreeding methods
650 $abreeds
650 $afoods
650 $agenetics
650 $alivestock
650 $ameat
650 $anutrition
650 $apork
650 $areproduction
650 $aswine
650 $atechnology
650 $aÁgua
650 $aAlimentação
650 $aAlimento Animal
650 $aAnimal
650 $aCarne
650 $aCriação
650 $aDoença
650 $aGenética
650 $aInstalação Para Animal
650 $aManejo
650 $aMelhoramento Genético Animal
650 $aNutrição
650 $aNutrição Animal
650 $aProdução
650 $aProdução animal
650 $aReprodução
650 $aSanidade Animal
650 $aSistema de Produção
650 $aSuíno
650 $aSuinocultura
650 $aTecnologia
650 $aTecnologia de Alimento
650 $aVacina
650 $aVeterinária
653 $aAlimentacao animal
653 $aAnimal honsing
653 $aAnimal sanity
653 $aAspecto econômico
653 $aBrasil
653 $aEconomic situation
653 $aFeed
653 $aFeeding
653 $aFood
653 $aGenetic
653 $aImprovement
653 $aManagement
653 $aMelhoramento genetico
653 $aPig
653 $aProduction
653 $aProduction system
653 $aResíduo animal
653 $aSanidade
653 $aSanity
653 $aSuinos
653 $aSwin
653 $aTecnologia da carne
653 $aVeterinary
700 1 $aMONTICELLI, C. J.
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