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      Avaliação nutricional e energética do farelo de girassol para aves Translated title: Nutritional and energetic evaluation of sunflower meal in broiler diets

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          Abstract

          Foram realizados dois ensaios de metabolismo a fim de determinar a energia metabolizável aparente (EMA), por meio do método de coleta total de excretas com frangos, e a energia metabolizável verdadeira (EMV) e a digestibilidade verdadeira dos aminoácidos do farelo de girassol, por meio do método de alimentação forçada com galos cecectomizados. No primeiro ensaio, foi utilizado o delineamento experimental inteiramente ao acaso com 80 frangos Cobb, distribuídos em dois tratamentos, ração referência (RR) e RR mais 20% de inclusão de farelo de girassol e oito repetições e cinco aves por unidade experimental. No segundo ensaio, foi utilizado o delineamento experimental inteiramente ao acaso com 14 galos Leghorn, distribuídos em dois tratamentos, farelo de girassol e jejum, sete repetições e um galo por unidade experimental. O farelo de girassol apresentou 90,0% de matéria seca, 28,1% de proteína bruta, 4.42kcal/kg de energia bruta, 22,4% de fibra bruta, 2,9% de extrato etéreo, 0,8% de fósforo e 0,3% de cálcio. A EMV, a EMV corrigida, a EMA e a EMA corrigida determinadas foram 3.013; 2.200; 2.141 e 1.983kcal/kg, respectivamente. A lisina foi o aminoácido essencial que apresentou a menor digestibilidade e a arginina, a maior.

          Translated abstract

          Two experiments were carried out to determine apparent metabolizable energy (AME), by the method of total excreta collection using broilers; and true metabolizable energy (TME) and true amino acid digestibility of sunflower meal (SFM), by the method of forced feeding using cecectomized roosters. In the first experiment, a completely randomized experimental design, with two treatments (reference diet (RD) and RD plus 20% SFM inclusion) with eight replicates of five birds each, was applied. In the second experiment, a completely randomized experimental design, with two treatments (SFM vs. fasting) with seven replicates of one rooster each, was used. Sunflower meal presented 90,0% dry matter, 28.1% crude protein, 4,429kcal/kg crude energy, 22.4% crude fiber, 2.9% ether extract, 0.8% phosphorus, and 0.3% calcium. TME, nitrogen-corrected TME, AME, and nitrogen-corrected AME were: 3,013; 2,200; 2,141; and 1,983 kcal/kg, respectively. Lysine was the essential amino acid that presented the lowest digestibility, and arginine, the highest. It is important to constantly upgrade energy and nutrient values of feedstuffs used in feed formulation to supply poultry nutritional requirements.

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          Most cited references24

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          Nutrient Requirements of Swine : Eleventh Revised Edition

          (2012)
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            TABELA de composição química e valores energéticos de alimentos para suínos e aves

            (1991)
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              A Bioassay for True Metabolizable Energy in Feedingstuffs

              I Sibbald (1976)
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                Author and article information

                Journal
                abmvz
                Arquivo Brasileiro de Medicina Veterinária e Zootecnia
                Arq. Bras. Med. Vet. Zootec.
                Universidade Federal de Minas Gerais, Escola de Veterinária (Belo Horizonte, MG, Brazil )
                0102-0935
                1678-4162
                February 2010
                : 62
                : 1
                : 172-177
                Affiliations
                [01] Viçosa MG orgnameUFV
                [02] Viçosa MG orgnameUFV orgdiv1Departamento de Zootecnia
                Article
                S0102-09352010000100023 S0102-0935(10)06200123
                10.1590/S0102-09352010000100023
                c559813e-302b-4208-a3dd-b6c4c5896704

                This work is licensed under a Creative Commons Attribution 4.0 International License.

                History
                : 10 September 2008
                : 28 December 2009
                Page count
                Figures: 0, Tables: 0, Equations: 0, References: 24, Pages: 6
                Product

                SciELO Brazil

                Categories
                Zootecnia e Tecnologia e Inspeção de Produtos de Origem Animal

                metabolizable energy,frango de corte,alimento alternativo,aminoácido,digestibilidade,energia metabolizável,broiler chickens,alternative feedstuffs,amino acids,digestibility

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