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Campo DC | Valor | Idioma |
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dc.contributor.author | ÍTAVO, L. C. V. | pt_BR |
dc.contributor.author | EUCLIDES FILHO, K. | pt_BR |
dc.contributor.author | TORRES JUNIOR, R. A. de A. | pt_BR |
dc.contributor.author | ÍTAVO, C. C. B. F. | pt_BR |
dc.contributor.author | NOGUEIRA, E. | pt_BR |
dc.contributor.author | DIAS, A. M. | pt_BR |
dc.date.accessioned | 2014-07-29T11:11:11Z | pt_BR |
dc.date.available | 2014-07-29T11:11:11Z | pt_BR |
dc.date.created | 2014-07-29 | pt_BR |
dc.date.issued | 2014 | pt_BR |
dc.identifier.citation | Revista Brasileira de Zootecnia, v. 43, n. 7, p. 390-394, july 2014. | pt_BR |
dc.identifier.issn | 1806-9290 | pt_BR |
dc.identifier.uri | http://www.alice.cnptia.embrapa.br/alice/handle/doc/991439 | pt_BR |
dc.description | 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. | pt_BR |
dc.language.iso | eng | eng |
dc.rights | openAccess | eng |
dc.subject | Calf performance | pt_BR |
dc.subject | Crossbreed | pt_BR |
dc.subject | Efficiency | pt_BR |
dc.title | Efficiency of calf production of cows from two genetic groups. | pt_BR |
dc.type | Artigo de periódico | pt_BR |
dc.date.updated | 2015-02-11T11:11:11Z | pt_BR |
dc.subject.nalthesaurus | body size | pt_BR |
riaa.ainfo.id | 991439 | pt_BR |
riaa.ainfo.lastupdate | 2015-02-11 | pt_BR |
dc.contributor.institution | 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. | pt_BR |
Aparece nas coleções: | Artigo em periódico indexado (CPAP) |
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Arquivo | Descrição | Tamanho | Formato | |
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Efficiencyofcalfproductionofcowsfromtwogeneticgroupssbzjul20141.pdf | 730,97 kB | Adobe PDF | Visualizar/Abrir |