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Efficiency of calf production of cows from two genetic groups R. Bras. Zootec.
Ítavo,Luís Carlos Vinhas; Euclides Filho,Kepler; Torres Júnior,Roberto Augusto de Almeida; Ítavo,Camila Celeste Brandão Ferreira; Nogueira,Ériklis; Dias,Alexandre Menezes.
The objective was to evaluate the effect of weight, age and production efficiency of cows from genetic groups based on the calf weight at calving and at weaning. For a period of five years, data of 120 cows (60 Angus-Nellore (AN) and 60 Simmental-Nellore (SN)) at four to nine-years of age were evaluated. All cows were maintained on Brachiaria decumbens pastures, with two forage availability levels (high and low), distributed in a randomized-block design. The cows were placed together with Canchim bulls to generate the crossbred calves. A supplement, consisting of 200 g/kg crude protein and 820 g/kg of total digestible nutrients, was provided to the calves in creep feeding until 210 days-old (weaning). Supplement had a significant effect on the weight of...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Body size; Calf performance; Crossbreed; Efficiency.
Ano: 2014 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982014000700390
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