Efficiency of calf production of cows from two genetic groups.
Autor(a) principal: | |
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Data de Publicação: | 2014 |
Outros Autores: | , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice) |
Texto Completo: | http://www.alice.cnptia.embrapa.br/alice/handle/doc/991439 |
Resumo: | 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. |
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Efficiency of calf production of cows from two genetic groups.Calf performanceCrossbreedEfficiencybody sizeThe 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.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.ÍTAVO, L. C. V.EUCLIDES FILHO, K.TORRES JUNIOR, R. A. de A.ÍTAVO, C. C. B. F.NOGUEIRA, E.DIAS, A. M.2014-07-29T11:11:11Z2014-07-29T11:11:11Z2014-07-2920142015-02-11T11:11:11Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleRevista Brasileira de Zootecnia, v. 43, n. 7, p. 390-394, july 2014.1806-9290http://www.alice.cnptia.embrapa.br/alice/handle/doc/991439enginfo:eu-repo/semantics/openAccessreponame:Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice)instname:Empresa Brasileira de Pesquisa Agropecuária (Embrapa)instacron:EMBRAPA2017-08-16T02:00:16Zoai:www.alice.cnptia.embrapa.br:doc/991439Repositório InstitucionalPUBhttps://www.alice.cnptia.embrapa.br/oai/requestopendoar:21542017-08-16T02:00:16falseRepositório InstitucionalPUBhttps://www.alice.cnptia.embrapa.br/oai/requestcg-riaa@embrapa.bropendoar:21542017-08-16T02:00:16Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice) - Empresa Brasileira de Pesquisa Agropecuária (Embrapa)false |
dc.title.none.fl_str_mv |
Efficiency of calf production of cows from two genetic groups. |
title |
Efficiency of calf production of cows from two genetic groups. |
spellingShingle |
Efficiency of calf production of cows from two genetic groups. ÍTAVO, L. C. V. Calf performance Crossbreed Efficiency body size |
title_short |
Efficiency of calf production of cows from two genetic groups. |
title_full |
Efficiency of calf production of cows from two genetic groups. |
title_fullStr |
Efficiency of calf production of cows from two genetic groups. |
title_full_unstemmed |
Efficiency of calf production of cows from two genetic groups. |
title_sort |
Efficiency of calf production of cows from two genetic groups. |
author |
ÍTAVO, L. C. V. |
author_facet |
ÍTAVO, L. C. V. EUCLIDES FILHO, K. TORRES JUNIOR, R. A. de A. ÍTAVO, C. C. B. F. NOGUEIRA, E. DIAS, A. M. |
author_role |
author |
author2 |
EUCLIDES FILHO, K. TORRES JUNIOR, R. A. de A. ÍTAVO, C. C. B. F. NOGUEIRA, E. DIAS, A. M. |
author2_role |
author author author author author |
dc.contributor.none.fl_str_mv |
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. |
dc.contributor.author.fl_str_mv |
ÍTAVO, L. C. V. EUCLIDES FILHO, K. TORRES JUNIOR, R. A. de A. ÍTAVO, C. C. B. F. NOGUEIRA, E. DIAS, A. M. |
dc.subject.por.fl_str_mv |
Calf performance Crossbreed Efficiency body size |
topic |
Calf performance Crossbreed Efficiency body size |
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. |
publishDate |
2014 |
dc.date.none.fl_str_mv |
2014-07-29T11:11:11Z 2014-07-29T11:11:11Z 2014-07-29 2014 2015-02-11T11:11:11Z |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/publishedVersion info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
Revista Brasileira de Zootecnia, v. 43, n. 7, p. 390-394, july 2014. 1806-9290 http://www.alice.cnptia.embrapa.br/alice/handle/doc/991439 |
identifier_str_mv |
Revista Brasileira de Zootecnia, v. 43, n. 7, p. 390-394, july 2014. 1806-9290 |
url |
http://www.alice.cnptia.embrapa.br/alice/handle/doc/991439 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.source.none.fl_str_mv |
reponame:Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice) instname:Empresa Brasileira de Pesquisa Agropecuária (Embrapa) instacron:EMBRAPA |
instname_str |
Empresa Brasileira de Pesquisa Agropecuária (Embrapa) |
instacron_str |
EMBRAPA |
institution |
EMBRAPA |
reponame_str |
Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice) |
collection |
Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice) |
repository.name.fl_str_mv |
Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice) - Empresa Brasileira de Pesquisa Agropecuária (Embrapa) |
repository.mail.fl_str_mv |
cg-riaa@embrapa.br |
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1794503393060847616 |