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      Desempenho e consumo de matéria seca de bovinos sob suplementação protéico-energética, durante a época de transição água-seca Translated title: Protein and energy supplementation of steers during the transition of the wet to the dry season

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          Abstract

          Avaliou-se o efeito da suplementação protéico-energética em dois níveis de ingestão diária, 0,17 e 0,37% do peso vivo médio, sobre o no desempenho e consumo de matéria seca por bovinos, em pastagens de Brachiaria brizantha cv. Marandu. Para avaliação do desempenho foram utilizados 42 novilhos (Holandês x Gir - HG), com média de 211kg de peso vivo inicial (PVI) e para a avaliação do consumo de matéria seca total (CMST) e de forragem (CMSF) foram usados 15 novilhos inteiros HG, com 239kg de PVI. Os tratamentos foram: SM - controle; SUP1 - suplementação protéico-energética com ingestão média diária de 0,17% do peso vivo e SUP2 - suplementação protéico-energética com ingestão média diária de 0,37% do peso vivo (PV). Os valores do CMSF foram de 2,6, 2,4 e 2,3% PV, e os de CMST 2,6, 2,6 e 2,6% PV, para SM, SUP1 e SUP2, respectivamente. Esses valores não diferiram entre si (P>0,05). A suplementação protéico-energética proporcionou maior ganho de peso, 0,54, 0,66 e 0,75kg/cabeça/dia para SM, SUP1 e SUP2, respectivamente.

          Translated abstract

          The effect of two levels of daily intake (0.17% and 0.37% of live weight) of protein and energy supplementation on weight gain and on dry matter intake of bulls grazing Brachiaria Brizantha cv. Marandu grass was evaluated. Forty two bulls (Holstein x Gir - HG), averaging 211kg initial LW, were used in the performance trial, and 15 HG steers, averaging 239kg initial LW, for evaluation of total dry matter intake (TDMI) and forage dry matter intake (FDMI). The treatments were: MS - mineral supplementation, SUP1 - protein and energy supplementation with an average daily intake of 0.17% of the live body weight, and SUP2 - protein and energy supplementation with an average daily intake of 0.37% of the live body weight. The average FDMI intakes were 2.6, 2.4, and 2.3% of the LW, for MS, SUP1 and SUP2, respectively. The average TDMI intakes were 2.6, 2.6, and 2.6% for MS, SUP1, and SUP2, respectively. Protein and energy supplementation increased weight gain from 0.54kg/day in the MS treatment to 0.66 and 0.75kg/day for SUP1 and SUP2, respectively.

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              Neutral detergent-soluble carbohydrates nutritional relevance and analysis. A laboratory manual

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                Author and article information

                Contributors
                Role: ND
                Role: ND
                Role: ND
                Role: ND
                Role: ND
                Journal
                abmvz
                Arquivo Brasileiro de Medicina Veterinária e Zootecnia
                Arq. Bras. Med. Vet. Zootec.
                Universidade Federal de Minas Gerais, Escola de Veterinária (Belo Horizonte )
                1678-4162
                February 2007
                : 59
                : 1
                : 160-167
                Affiliations
                [1 ] Universidade Federal de Minas Gerais Brazil
                [2 ] Instituto de Tecnologia Brasil Pecuária
                Article
                S0102-09352007000100027
                10.1590/S0102-09352007000100027
                2f84e288-c6fe-46d9-8ca6-afc435f983f7

                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=0102-0935&lng=en
                Categories
                VETERINARY SCIENCES

                General veterinary medicine
                bovino,Brachiaria brizantha,pasto,suplementação,cattle,pasture,supplementation

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