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      Efeito da enzima fitase nas rações de frangos de corte, durante as fases pré-inicial e inicial Translated title: Effect of phytase enzyme in broilers rations, during pre-starter and starter phases

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          Abstract

          Foram criados 1.080 pintos de corte machos, no período de 1 a 7 e 8 a 21 dias de idade, para estudar os efeitos da fitase nas rações sobre o desempenho. Utilizaram-se duas rações experimentais para cada fase, sendo a primeira formulada por uma empresa integradora de frangos de corte (E-1) e a segunda sugerida pela empresa fornecedora da enzima (E-2). Os tratamentos foram: T1 e T4 - ração sem adição da enzima e T2 e T3 - ração com fitase. O delineamento experimental utilizado foi o inteiramente casualizado, num arranjo fatorial 2 x 2 (duas rações e dois níveis de enzima), com nove repetições e trinta aves por parcela. A enzima foi adicionada na quantidade de 100 g/t de ração. Houve diferença significativa (P<0,01) entre tratamentos para ganho de peso e conversão alimentar para as fases pré-inicial e inicial, sendo os melhores resultados obtidos com a E-1 com adição de enzima, mostrando a importância da fitase em rações com frangos de corte quanto ao desempenho dos animais.

          Translated abstract

          1.080 male broilers were used from 1 to 7 and 8 to 21 days of age to evaluate phytase diet supplementation in chicks performance. Two experimental rations were used each phase, whereas the first diet recommended by company broiler integrator (C-1) and the second suggested by furnished company enzyme (C-2). Treatments consisted in: T1 and T4 - ration without enzyme and T2 and T3 - ration with enzyme. A completely randomized design was used, in a 2 x 2 factorial model (two rations x two levels of enzyme) with nine replicates and 30 birds per unit. The enzyme was used in amount of 100 g/ton of ration. Statistically significant difference (P<0.01) was found between treatments to weight gain and feed:gain ratio to pre-starter and initial phases, where best results were obtained with C-1 with enzyme addition, showing the importance of phytase in broiler chicks rations as to birds performance.

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          Curso de Estatística experimental

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              Tabelas brasileiras para aves e suínos: composição de alimentos e exigências nutricionais

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                Author and article information

                Contributors
                Role: ND
                Role: ND
                Role: ND
                Role: ND
                Journal
                cagro
                Ciência e Agrotecnologia
                Ciênc. agrotec.
                Editora da Universidade Federal de Lavras (Lavras )
                1981-1829
                June 2007
                : 31
                : 3
                : 865-870
                Affiliations
                [1 ] Universidade Federal da Paraíba Brazil
                [2 ] Universidade Federal de Campina Grande Brazil
                [3 ] Universidade Federal da Paraíba Brazil
                Article
                S1413-70542007000300037
                10.1590/S1413-70542007000300037
                c693e6f4-6bcd-4dcc-bd89-29a0016a294c

                http://creativecommons.org/licenses/by/4.0/

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                Product

                SciELO Brazil

                Self URI (journal page): http://www.scielo.br/scielo.php?script=sci_serial&pid=1413-7054&lng=en
                Categories
                AGRICULTURE, MULTIDISCIPLINARY

                General agriculture
                Poultry,performance,enzyme,animal nutrition,Avicultura,desempenho,enzima,nutrição animal
                General agriculture
                Poultry, performance, enzyme, animal nutrition, Avicultura, desempenho, enzima, nutrição animal

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