| Registro completo |
| Provedor de dados: |
Animal Sciences
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| País: |
Brazil
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| Título: |
Carbohydrase and phytase supplementation in diets for semi-heavy laying hens
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| Autores: |
Geraldo, Adriano; Instituto Federal de Educação Ciência e Tecnologia de Minas Gerais
Gomes, Karina Rodrigues Aurora; Instituto Federal de Educação Ciência e Tecnologia de Minas Gerais
Fassani, Édison José; Universidade Federal de Lavras
Bertechini, Antonio Gilberto; Universidade Federal de Lavras
Simão, Sérgio Domingos; Instituto Federal de Educação Ciência e Tecnologia de Minas Gerais
Nogueira, Filipe Soares; Instituto Federal de Educação Ciência e Tecnologia de Minas Gerais
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| Data: |
2014-07-23
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| Ano: |
2014
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| Palavras-chave: |
5.04.03.00-1 enzymes
Monogastrics
Nutrient availability
Performance
Egg quality
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| Resumo: |
This study was conducted in order to evaluate the association of phytase with an enzymatic complex comprised of carbohydrases (α-galactosidase, galactomannan, xylanase and β-glucanase) in nutrition reduction diets for semi-heavy laying hens and its effect on egg performance and egg quality. Four hundred Isa Brown laying hens with 42 to 57 weeks of age were distributed in an entirely random experiment with five treatments and 8 repetitions, during five production periods of 21 days. Variables studied: egg production, feed intake, mean egg weight, feed conversion, Haugh unit, percentage of yolk, egg white and albumen, yolk color, eggshell thickness and specific gravity. There was a significant interaction (p < 0.05) between treatments and experimental periods for feed intake. There were no significant effects (p > 0.05) of treatment on production, egg weight or internal and external egg quality. Treatment effects on feed conversion showed better values for hens fed with the control diet. The levels of nutrient reduction used in the diets with or without enzyme supplementation did not provide good results with regard to feed conversion and feed intake. However, they did not affect the other parameters for egg production and internal and external egg quality.
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| Tipo: |
Info:eu-repo/semantics/article
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| Idioma: |
Inglês
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| Identificador: |
http://periodicos.uem.br/ojs/index.php/ActaSciAnimSci/article/view/21952
10.4025/actascianimsci.v36i3.21952
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| Editor: |
Editora da Universidade Estadual de Maringá
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| Relação: |
http://periodicos.uem.br/ojs/index.php/ActaSciAnimSci/article/view/21952/pdf_40
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| Formato: |
application/pdf
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| Fonte: |
Acta Scientiarum. Animal Sciences; v. 36, n. 3 (2014); 285-290
Acta Scientiarum. Animal Sciences; v. 36, n. 3 (2014); 285-290
1807-8672
1806-2636
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| Direitos: |
DECLARATION OF ORIGINALITY AND CESSATION OF COPYRIGHTI Declare that current article is original and has not been submitted for publication, in part or in whole, to any other national or international journal. I also declare that once published in the Acta Scientiarum. Animal Sciences, a publication of the Universidade Estadual de Maringá, it will not be submitted by me or by any co-author to any scientific communication mean. In my name and in the name of co-authors, I shall cede the copyright of the above mentioned article to the Universidade Estadual de Maringá and I declare that I know that the non-observance of this norm may make me liable for the penalties contemplated in the Law for the Protection of Authors’ Rights (Act 9609 of the 19th February 1998).
DECLARAÇÃO DE ORIGINALIDADE E CESSÃO DE DIREITOS AUTORAIS Declaro que o presente artigo é original, não tendo sido submetido à publicação em qualquer outro periódico nacional ou internacional, quer seja em parte ou em sua totalidade. Declaro, ainda, que uma vez publicado na revista Acta Scientiarum. Animal Sciences, editada pela Universidade Estadual de Maringá, o mesmo jamais será submetido por mim ou por qualquer um dos demais co-autores a qualquer outro meio de divulgação científica. Através deste instrumento, em meu nome e em nome dos demais co-autores, porventura existentes, cedo os direitos autorais do referido artigo à Universidade Estadual de Maringá e declaro estar ciente de que a não observância deste compromisso submeterá o infrator a sanções e penas previstas na Lei de Proteção de Direitos Autorias (Nº9609, de 19/02/98).
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