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| Provedor de dados: |
Animal Sciences
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| País: |
Brazil
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| Título: |
Effect of phytase supplementation on performance, bone densitometry and carcass yield in broilers chicks - doi: 10.4025/actascianimsci.v33i3.10702
Effect of phytase supplementation on performance, bone densitometry and carcass yield in broilers chicks - doi: 10.4025/actascianimsci.v33i3.10702
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| Autores: |
Junqueira, Otto Mack; FCAV UNESP Jaboticabal
Duarte, Karina Ferreira; FCAV UNESP Jaboticabal
Assuena, Vinícius; FCAV UNESP Jaboticabal
Filardi, Rosemeire da Silva; FEIS UNESP Ilha Solteira
Laurentiz, Antonio Carlos de; FEIS UNESP Ilha Solteira
Praes, Maria Fernanda Ferreira Menegucci; FCAV UNESP Jaboticabal
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| Data: |
2011-06-08
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| Ano: |
2011
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| Palavras-chave: |
5.04.03.00-1 bone characteristics
Carcass yield
Performance
Phytase enzyme bone characteristics
Carcass yield
Performance
Phytase enzyme
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| Resumo: |
An experiment was conducted to evaluate the performance, bone densitometry and carcass yield of broilers chicks, using different levels of phytase enzyme. Nine hundred and sixty male one-day-old broiler chicks were used. The birds were distributed in a completely randomized experimental design, involving five treatments and six replications of 32 chicks each. The treatments consisted of a control diet for each phase, and four other diets were formulated adding growing levels of the phytase enzyme (250, 500, 750 and 1,000 FTU of phytase kg-1 feed). When adding the phytase enzyme, the nutritional matrix was valued to guarantee the same nutritional levels as the control diet. In general, the addition of phytase enzyme determined a linear decrease on the performance of the birds. However, the performance obtained with the level of 250 FTU phytase kg-1 feed were no different from the control treatment. The best bone density results were observed in the control treatment with no phytase, and the highest leg and thigh yield were obtained at the level of 514 FTU phytase kg-1.
An experiment was conducted to evaluate the performance, bone densitometry and carcass yield of broilers chicks, using different levels of phytase enzyme. Nine hundred and sixty male one-day-old broiler chicks were used. The birds were distributed in a completely randomized experimental design, involving five treatments and six replications of 32 chicks each. The treatments consisted of a control diet for each phase, and four other diets were formulated adding growing levels of the phytase enzyme (250, 500, 750 and 1,000 FTU of phytase kg-1 feed). When adding the phytase enzyme, the nutritional matrix was valued to guarantee the same nutritional levels as the control diet. In general, the addition of phytase enzyme determined a linear decrease on the performance of the birds. However, the performance obtained with the level of 250 FTU phytase kg-1 feed were no different from the control treatment. The best bone density results were observed in the control treatment with no phytase, and the highest leg and thigh yield were obtained at the level of 514 FTU phytase kg-1.
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| Tipo: |
Pesquisa de campo
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| Idioma: |
Inglês
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| Identificador: |
http://periodicos.uem.br/ojs/index.php/ActaSciAnimSci/article/view/10702
10.4025/actascianimsci.v33i3.10702
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| Editor: |
Editora da Universidade Estadual de Maringá
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| Formato: |
application/pdf
application/pdf
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| Fonte: |
Acta Scientiarum. Animal Sciences; v. 33, n. 3 (2011); 301-307
Acta Scientiarum. Animal Sciences; v. 33, n. 3 (2011); 301-307
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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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