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      SILAGENS DE GIRASSOL (Helianthus annus L.), MILHO (Zea mays L.) E SORGO (Sorghum bicolor (L.) Moench) PARA OVELHAS EM CONFINAMENTO Translated title: SILAGES OF SUNFLOWER (Helianthus annus L.), CORN (Zea mays L.) AND SORGHUM (Sorghum bicolor (L.) Moench) FOR EWES IN FEEDLOT

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          Abstract

          Este trabalho teve como objetivo avaliar o desempenho de ovelhas recebendo silagens de milho, sorgo e girassol. Metade da matéria seca da dieta foi fornecida pelas silagens e a outra metade por uma mistura de 25% de farelo de soja e 75% de milho grão. Foram utilizadas 47 ovelhas confinadas por um período de 70 dias. As ovelhas que receberam silagem de girassol ganharam mais (P<0,01) peso diariamente (0,263kg) do que as que receberam silagens de milho (0,175kg) ou sorgo (0,171kg). Os consumos de alimento, tanto como percentagem do peso vivo, quanto por unidade de tamanho metabólico, diferiram entre os tratamentos (P<0,01), sendo maiores pelos animais tratados com silagem de milho, intermediário com silagem de girassol e menores com aqueles com silagem de sorgo. As conversões alimentares foram de 7,96; 7,26 e 6,14 (P>0,05), respectivamente, para ovelhas recebendo silagens de milho, sorgo e girassol. As ovelhas alimentadas com silagem de girassol apresentaram maior percentagem de carcaça quente (53,14%) do que aquelas com silagem de sorgo (48,13%) ou com silagem de milho (46,36%). Portanto, a silagem de girassol é superior às silagens de milho e sorgo na terminação de ovinos confinados.

          Translated abstract

          The objective of this paper was to evaluate the performance of ewes receiving corn, sorghum or sunflower silages. Half of the dry matter diet came from the silages and the other half from a concentrate, 25% of soybean meal and 75% of ground corn. Forty-seven ewes were used and confined during a period of 70 days. Ewes receiving sunflower silage had a greater (P<0.01) daily weight gain (0.263kg) than ewes receiving corn (0.175kg) or sorghum (0.171kg) silages. Feed consumption, as a percentage of the body weight (BW) or per unit of metabolic body weight (BW0.75), were greater (P<0.01) for ewes receiving corn silage, intermediate for ewes receiving sunflower silage and lower for ewes receiving sorghum silage. Feed conversion were 7.96, 6.14 and 7.26 (P>0.05), respectively, for ewes receiving corn, sunflower and sorghum silages. Ewes fed sunflower silage showed greater percentage of hot carcass (53.14%) than the ewes fed sorghum (48.13%) or corn (46.36%) silages. It can be concluded that the sunflower silage is better than corn and sorghum silages for termination of feedlot sheep.

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          Most cited references14

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          Tabelas para cálculo de rações

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            SAS/STAT User's Guide, Version 6

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              Características bioquímicas e nutricionais do óleo e do farelo de girassol

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                Author and article information

                Contributors
                Role: ND
                Role: ND
                Role: ND
                Role: ND
                Journal
                cr
                Ciência Rural
                Cienc. Rural
                Universidade Federal de Santa Maria (Santa Maria )
                1678-4596
                April 2002
                : 32
                : 2
                : 299-302
                Affiliations
                [1 ] Universidade Estadual de Londrina Brazil
                Article
                S0103-84782002000200019
                10.1590/S0103-84782002000200019
                bee74b75-6e12-4dfe-9313-dc2fb61120b7

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

                History
                Product

                SciELO Brazil

                Self URI (journal page): http://www.scielo.br/scielo.php?script=sci_serial&pid=0103-8478&lng=en
                Categories
                AGRONOMY

                Horticulture
                carcass,feed conversion,sheep,silage,sunflower,weight,carcaça,conversão alimentar,ganho de peso,girassol,ovinos,silagem

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