Productivity and production efficiency of cows of different genetic groups submitted to cultivated pastures during pre or postpartum
Autor(a) principal: | |
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Data de Publicação: | 2014 |
Outros Autores: | , , , , , , |
Tipo de documento: | Artigo |
Idioma: | por |
Título da fonte: | Semina. Ciências Agrárias (Online) |
Texto Completo: | https://ojs.uel.br/revistas/uel/index.php/semagrarias/article/view/14773 |
Resumo: | We assessed through the weight of cows and calves up to weaning at 90 days and the reproductive performance from pregnancy to weaning, the productivity and efficiency of 94 Charolais (CH), Nellore (NE), ½CH ½NE e ½NE ½CH cows submitted the following feeding systems: cows kept on native pasture (NP); cows kept on cultivated pasture (CP), composed of oat (Avena sativa), ryegrass (Lollium multiflorum) and clover (Trifolium vesiculosum) from July 15 to September 15 and the remainder of the trial on natural pasture (CPN); and cows kept on cultivated pasture during September 15 to November 15, and the remainder on native pasture (NPC). Cows kept on CP produced 22.6% more calves than cows kept exclusively on NP, and were more efficient (P<.05) for calf production index (efficiency of herds) with 57 vs 37 kg of calves/cow kept in the herd. For the production of kg of calves per cow, cows kept postpartum on CP (69 kg) were higher (P <0.05) to those kept on the cultivated pasture during antepartum (61 kg) and both superior to cows maintained exclusively on NP (53 kg). Between purebred cows the Charolais were more productive with higher index production of calves requiring less cows for the production of one calf. Between crossbred cows there was no difference in the variables studied (P>.05), being higher than the purebreds in productivity and production efficiency. |
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Semina. Ciências Agrárias (Online) |
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Productivity and production efficiency of cows of different genetic groups submitted to cultivated pastures during pre or postpartumProdutividade e eficiência de produção de vacas de diferentes grupos genéticos submetidas a pastagens cultivadas no pré ou pós-partoCharolaisCrossbreedingCalf production indexNelloreWeaning rateWeight gain.CharolêsCruzamentoGanho de pesoÍndice de produção de bezerrosNeloreTaxa de desmama.Produção AnimalWe assessed through the weight of cows and calves up to weaning at 90 days and the reproductive performance from pregnancy to weaning, the productivity and efficiency of 94 Charolais (CH), Nellore (NE), ½CH ½NE e ½NE ½CH cows submitted the following feeding systems: cows kept on native pasture (NP); cows kept on cultivated pasture (CP), composed of oat (Avena sativa), ryegrass (Lollium multiflorum) and clover (Trifolium vesiculosum) from July 15 to September 15 and the remainder of the trial on natural pasture (CPN); and cows kept on cultivated pasture during September 15 to November 15, and the remainder on native pasture (NPC). Cows kept on CP produced 22.6% more calves than cows kept exclusively on NP, and were more efficient (P<.05) for calf production index (efficiency of herds) with 57 vs 37 kg of calves/cow kept in the herd. For the production of kg of calves per cow, cows kept postpartum on CP (69 kg) were higher (P <0.05) to those kept on the cultivated pasture during antepartum (61 kg) and both superior to cows maintained exclusively on NP (53 kg). Between purebred cows the Charolais were more productive with higher index production of calves requiring less cows for the production of one calf. Between crossbred cows there was no difference in the variables studied (P>.05), being higher than the purebreds in productivity and production efficiency.Avaliou-se através do desenvolvimento de vacas e bezerros até o desmame aos 90 dias e também do desempenho reprodutivo desde a prenhez até a desmama, a produtividade e a eficiência de 94 vacas de corte dos grupos genéticos Charolês (CH), Nelore (NE), ½CH ½NE e ½NE ½CH submetidas aos seguintes sistemas de alimentação: vacas mantidas exclusivamente em pastagem nativa (PN); vacas mantidas em pastagem cultivada (PC), composta por aveia (Avena sativa), azevém (Lollium multiflorum) e trevo vesiculoso (Trifolium vesiculosum) durante o período de 15 de julho a 15 de setembro e o restante do período experimental em pastagem natural (PCN); e vacas mantidas em pastagem cultivada durante o período de 15 de setembro a 15 de novembro, e o restante do período em pastagem nativa (PNC). As vacas mantida em PC produziram 22,6% a mais de bezerros do que as vacas mantidas exclusivamente em PN, bem como foram mais eficientes no índice de produção de bezerros (eficiência dos rebanhos), com 57,0 vs 37,0 kg de bezerros/vaca mantida no rebanho. Na produção de kg de bezerros por vaca, as fêmeas mantidas em PC no pós-parto (69 kg) foram superiores (P<0,05) as mantidas em pastagem cultivadas no pré-parto (61 kg) e estas superiores as mantidas exclusivamente em PN (53 kg). Entre as vacas puras, as Charolês foram mais produtivas com maior índice de produção de bezerros necessitando de menos vacas para a produção de um bezerro. Entre as vacas cruzadas não ocorreu diferença nas variáveis estudas (P>0,05), sendo estas superiores as puras na produtividade e eficiência produtiva.UEL2014-11-05info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionPesquisaapplication/pdfhttps://ojs.uel.br/revistas/uel/index.php/semagrarias/article/view/1477310.5433/1679-0359.2014v35n5p2697Semina: Ciências Agrárias; Vol. 35 No. 5 (2014); 2697-2708Semina: Ciências Agrárias; v. 35 n. 5 (2014); 2697-27081679-03591676-546Xreponame:Semina. Ciências Agrárias (Online)instname:Universidade Estadual de Londrina (UEL)instacron:UELporhttps://ojs.uel.br/revistas/uel/index.php/semagrarias/article/view/14773/pdf_500Copyright (c) 2014 Semina: Ciências Agráriashttp://creativecommons.org/licenses/by-nc/4.0info:eu-repo/semantics/openAccessVaz, Ricardo ZambardaRestle, JoãoPacheco, Paulo SantanaVaz, Fabiano NunesAlves Filho, Dari CelestinoBrondani, Ivan LuizPascoal, Leonir LuizArgenta, Flânia Mônego2023-01-16T11:59:46Zoai:ojs.pkp.sfu.ca:article/14773Revistahttp://www.uel.br/revistas/uel/index.php/semagrariasPUBhttps://ojs.uel.br/revistas/uel/index.php/semagrarias/oaisemina.agrarias@uel.br1679-03591676-546Xopendoar:2023-01-16T11:59:46Semina. Ciências Agrárias (Online) - Universidade Estadual de Londrina (UEL)false |
dc.title.none.fl_str_mv |
Productivity and production efficiency of cows of different genetic groups submitted to cultivated pastures during pre or postpartum Produtividade e eficiência de produção de vacas de diferentes grupos genéticos submetidas a pastagens cultivadas no pré ou pós-parto |
title |
Productivity and production efficiency of cows of different genetic groups submitted to cultivated pastures during pre or postpartum |
spellingShingle |
Productivity and production efficiency of cows of different genetic groups submitted to cultivated pastures during pre or postpartum Vaz, Ricardo Zambarda Charolais Crossbreeding Calf production index Nellore Weaning rate Weight gain. Charolês Cruzamento Ganho de peso Índice de produção de bezerros Nelore Taxa de desmama. Produção Animal |
title_short |
Productivity and production efficiency of cows of different genetic groups submitted to cultivated pastures during pre or postpartum |
title_full |
Productivity and production efficiency of cows of different genetic groups submitted to cultivated pastures during pre or postpartum |
title_fullStr |
Productivity and production efficiency of cows of different genetic groups submitted to cultivated pastures during pre or postpartum |
title_full_unstemmed |
Productivity and production efficiency of cows of different genetic groups submitted to cultivated pastures during pre or postpartum |
title_sort |
Productivity and production efficiency of cows of different genetic groups submitted to cultivated pastures during pre or postpartum |
author |
Vaz, Ricardo Zambarda |
author_facet |
Vaz, Ricardo Zambarda Restle, João Pacheco, Paulo Santana Vaz, Fabiano Nunes Alves Filho, Dari Celestino Brondani, Ivan Luiz Pascoal, Leonir Luiz Argenta, Flânia Mônego |
author_role |
author |
author2 |
Restle, João Pacheco, Paulo Santana Vaz, Fabiano Nunes Alves Filho, Dari Celestino Brondani, Ivan Luiz Pascoal, Leonir Luiz Argenta, Flânia Mônego |
author2_role |
author author author author author author author |
dc.contributor.author.fl_str_mv |
Vaz, Ricardo Zambarda Restle, João Pacheco, Paulo Santana Vaz, Fabiano Nunes Alves Filho, Dari Celestino Brondani, Ivan Luiz Pascoal, Leonir Luiz Argenta, Flânia Mônego |
dc.subject.por.fl_str_mv |
Charolais Crossbreeding Calf production index Nellore Weaning rate Weight gain. Charolês Cruzamento Ganho de peso Índice de produção de bezerros Nelore Taxa de desmama. Produção Animal |
topic |
Charolais Crossbreeding Calf production index Nellore Weaning rate Weight gain. Charolês Cruzamento Ganho de peso Índice de produção de bezerros Nelore Taxa de desmama. Produção Animal |
description |
We assessed through the weight of cows and calves up to weaning at 90 days and the reproductive performance from pregnancy to weaning, the productivity and efficiency of 94 Charolais (CH), Nellore (NE), ½CH ½NE e ½NE ½CH cows submitted the following feeding systems: cows kept on native pasture (NP); cows kept on cultivated pasture (CP), composed of oat (Avena sativa), ryegrass (Lollium multiflorum) and clover (Trifolium vesiculosum) from July 15 to September 15 and the remainder of the trial on natural pasture (CPN); and cows kept on cultivated pasture during September 15 to November 15, and the remainder on native pasture (NPC). Cows kept on CP produced 22.6% more calves than cows kept exclusively on NP, and were more efficient (P<.05) for calf production index (efficiency of herds) with 57 vs 37 kg of calves/cow kept in the herd. For the production of kg of calves per cow, cows kept postpartum on CP (69 kg) were higher (P <0.05) to those kept on the cultivated pasture during antepartum (61 kg) and both superior to cows maintained exclusively on NP (53 kg). Between purebred cows the Charolais were more productive with higher index production of calves requiring less cows for the production of one calf. Between crossbred cows there was no difference in the variables studied (P>.05), being higher than the purebreds in productivity and production efficiency. |
publishDate |
2014 |
dc.date.none.fl_str_mv |
2014-11-05 |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Pesquisa |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
https://ojs.uel.br/revistas/uel/index.php/semagrarias/article/view/14773 10.5433/1679-0359.2014v35n5p2697 |
url |
https://ojs.uel.br/revistas/uel/index.php/semagrarias/article/view/14773 |
identifier_str_mv |
10.5433/1679-0359.2014v35n5p2697 |
dc.language.iso.fl_str_mv |
por |
language |
por |
dc.relation.none.fl_str_mv |
https://ojs.uel.br/revistas/uel/index.php/semagrarias/article/view/14773/pdf_500 |
dc.rights.driver.fl_str_mv |
Copyright (c) 2014 Semina: Ciências Agrárias http://creativecommons.org/licenses/by-nc/4.0 info:eu-repo/semantics/openAccess |
rights_invalid_str_mv |
Copyright (c) 2014 Semina: Ciências Agrárias http://creativecommons.org/licenses/by-nc/4.0 |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.publisher.none.fl_str_mv |
UEL |
publisher.none.fl_str_mv |
UEL |
dc.source.none.fl_str_mv |
Semina: Ciências Agrárias; Vol. 35 No. 5 (2014); 2697-2708 Semina: Ciências Agrárias; v. 35 n. 5 (2014); 2697-2708 1679-0359 1676-546X reponame:Semina. Ciências Agrárias (Online) instname:Universidade Estadual de Londrina (UEL) instacron:UEL |
instname_str |
Universidade Estadual de Londrina (UEL) |
instacron_str |
UEL |
institution |
UEL |
reponame_str |
Semina. Ciências Agrárias (Online) |
collection |
Semina. Ciências Agrárias (Online) |
repository.name.fl_str_mv |
Semina. Ciências Agrárias (Online) - Universidade Estadual de Londrina (UEL) |
repository.mail.fl_str_mv |
semina.agrarias@uel.br |
_version_ |
1799306069587001344 |