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|Unidade da Embrapa/Coleção::||Embrapa Pantanal - Artigo em periódico indexado (ALICE)|
|Data do documento:||29-Jul-2014|
|Tipo do Material:||Artigo em periódico indexado (ALICE)|
|Autoria:||ÍTAVO, L. C. V.|
EUCLIDES FILHO, K.
TORRES JUNIOR, R. A. de A.
ÍTAVO, C. C. B. F.
DIAS, A. M.
|Informaçães Adicionais:||LUÍS CARLOS VINHAS ÍTAVO, UCDB; KEPLER EUCLIDES FILHO, DPD; ROBERTO AUGUSTO DE A TORRES JUNIOR, CNPGC; CAMILA CELESTE BRANDÃO FERREIRA ÍTAVO, UFMS; ERIKLIS NOGUEIRA, CPAP; ALEXANDRE MENEZES DIAS, UFMS.|
|Título:||Efficiency of calf production of cows from two genetic groups.|
|Fonte/Imprenta:||Revista Brasileira de Zootecnia, v. 43, n. 7, p. 390-394, july 2014.|
|Conteúdo:||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 the cow at calving and weaning. The average weights of the Angus-Nellore cows were 529.19 and 514.23 kg at calving and on the weaning day, respectively. These values were higher for Simmental-Nellore cows, which presented 569.60 and 542.59 kg, respectively. The male-calf weight at weaning was 254.69 kg, which was higher than the females (237.70 kg). Genetic group had no effect on weaning weight. The average weight for Canchim × Angus-Nellore calves was 243.41 kg and for Canchim × Simmental-Nellore it was 248.98 kg. Cow age affected weaning weight, promoting a linear increase of 0.804 kg in the weaning weight each year. Younger and smaller cows (Angus-Nellore) are more efficient for calf production.|
|NAL Thesaurus:||body size.|
|Ano de Publicação:||2014|
|Aparece nas coleções:||Artigo em periódico indexado (CPAP)|
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|Efficiencyofcalfproductionofcowsfromtwogeneticgroupssbzjul20141.pdf||730,97 kB||Adobe PDF|