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      Desenvolvimento de bezerras de corte após a desmama sob níveis de concentrado Translated title: After weaning beef heifers development under supplementation levels

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          Abstract

          Foi avaliado o desenvolvimento de bezerras de corte recebendo diferentes níveis diários de suplemento concentrado: 0,0; 0,3; 0,6 e 0,9% do peso corporal em pastagem de aveia preta (Avena strigosa Schreb.) e azevém (Lolium multiflorum Lam.). O delineamento experimental foi o inteiramente casualizado, com quatro tratamentos e duas repetições de área. As bezerras tiveram condições similares de disponibilidade de pasto (massa de forragem e oferta de lâminas verdes) em todos os tratamentos. Aumentos na quantidade fornecida de suplemento interferiram positivamente no ganho médio diário, na carga animal, no ganho de peso por área e na eficiência de transformação da forragem. Bezerras suplementadas apresentaram maior peso corporal e maior escore de condição corporal aos 13 meses de idade em relação às não suplementadas. Em aveia preta e azevém, fornecer até 0,9% do peso corporal dos animais em suplementação concentrada é uma alternativa para serem obtidas novilhas mais pesadas e com melhor escore de condição corporal.

          Translated abstract

          It was evaluated the performance of beef heifers receiving different levels of supplement: 0; 0.3; 0.6 and 0.9% of body weight day-1, in black oats (Avena strigosa Schreb.) plus Italian ryegrass (Lolium multiflorum Lam.) pasture. The experimental design was completely randomized with four treatments and two area replicates. Beef heifers from different treatments had access to the same forage allowance (herbage mass and supply of green leaves). Increases on supplement quantity positively interfered on average daily gain, stocking rate, weight gain per area and forage transformation efficiency. Supplemented heifers had greater weight and body condition at 13 months of age than the non supplemented ones. In black oats plus Italian ryegrass pasture, providing up to 0.9% of body weight of the animal concentrate supplementation is an alternative for obtaining heavier heifers and in better body condition score.

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          Most cited references14

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          Nutrient requirements of beef cattle

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            Offcial Methods of Analysis

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              Grazing management: science into practice.

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                Author and article information

                Contributors
                Role: ND
                Role: ND
                Role: ND
                Role: ND
                Role: ND
                Role: ND
                Role: ND
                Journal
                cr
                Ciência Rural
                Cienc. Rural
                Universidade Federal de Santa Maria (Santa Maria )
                1678-4596
                October 2010
                : 40
                : 10
                : 2157-2162
                Affiliations
                [1 ] Universidade Federal de Santa Maria Brazil
                [2 ] Universidade Federal de Santa Maria Brazil
                Article
                S0103-84782010001000017
                4f7340f2-9a7d-4984-8624-ba50570d2149

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

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                SciELO Brazil

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

                Horticulture
                animal growth,Avena strigosa,beef heifers,continuous grazing,Lolium multiflorum,crescimento animal,fêmeas bovinas de corte,pastejo contínuo

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