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Efeitos Ambientais sobre Ganho de Peso no Período do Nascimento ao Desmame em Bovinos da Raça Nelore
(Revista Brasileira de Zootecnia, 1999-01-01) [Artigo]
The objective of this work was to study the effects of age of dam (AOD), age of calf (AOC) and Julian date of birth (DOB) on the average daily gain (ADG) from birth to weaning period of Nellore breed animals. The data were ...
Acidosis ruminal en bovinos lecheros: Implicaciones sobre la producción y la salud animal
(Revista Electronica de Veterinaria, 2012-04-01) [Artigo]
Ruminal acidosis is a major problem in the production of cattle fed diets rich in concentrates, especially in cows of high milk production. During rumen acidosis rumen pH is depressed due to the accumulation of volatile ...
Desempenho ponderal de novilhas mestiças Holandês x Zebu submetidas a duas estratégias de suplementação mineral
(Revista Brasileira de Zootecnia, 2008-02-01) [Artigo]
The ponderal performance of heifers under rotational grazing fed two types mineral supplement was evaluated. A total of 25 heifers Holstein x Zebu, including nine regulator animals and 16 test animals, was divided into ...
Desempenho e características da carcaça de tourinhos santa gertrudes confinados, recebendo dietas com alto concentrado e níveis crescentes de polpa cítrica peletizada
(Revista Brasileira de Zootecnia, 2004-03-01) [Artigo]
The experiment was developed to evaluate the effect of the replacement of corn grain by dehydrated citrus pulp pellets on the performance and carcass characteristics of Santa Gertrudis young bulls fed high concentrate ...
Efeitos da Seleção para Peso Pós-desmame sobre Medidas Corporais e Perímetro Escrotal de Machos Nelore de Sertãozinho (SP)
(Revista Brasileira de Zootecnia, 2000-03-01) [Artigo]
The objective of this study was to evaluate the indirect effects of selection for post-weaning weight on body measures and scrotal perimeter of 809 Nellore males from selected herds (NeS and NeT) and control herd (NeC), ...
Fatores de Correção para Ganho de Peso Médio Diário no Período do Nascimento ao Desmame em Bovinos da Raça Nelore
(Revista Brasileira de Zootecnia, 1999-01-01) [Artigo]
The objective of this work was to calculate correction factors for the effects of age of the dam (AOD), age of the calf (AOC) and Julian birth date (DOB) on the average daily gain (ADG) from birth to weaning period of ...
Comportamento sócio-sexual e de manutenção de touros nelore durante a estação de monta
(Archivos de Zootecnia, 2010-08-03) [Artigo]
Changes in the bull: cow proportion in natural breeding have been proposed, but there are not evaluations about the effect of these changes in the behaviour of Nellore bulls. The objective of this study was to test the ...
Profitability measures of dairy cows
(Revista Brasileira de Zootecnia, 2008-09-01) [Artigo]
This study was aimed at defining profitability measures designed for prediction of breeding values (EBV) in dairy cows. Performance and economic data recorded in herds enrolled in the DHIA (Dairy Herd Improvement Association) ...