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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 ...
Métodos de coleta de fezes e determinação dos coeficientes de digestibilidade da fração protéica e da energia de alimentos para o pacu, Piaractus mesopotamicus (Holmberg, 1887)
(Revista Brasileira de Zootecnia, 2004-09-01) [Artigo]
To improve the pacu (Piaracatus mesopotamicus) feeding in the growth phase, it's necessary to know the digestibility of the ingredients used in his diets. Initially, four fecal collection methods were analyzed (dissection, ...
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 ...
Relação do perímetro escrotal com a média de peso do grupo contemporâneo para estimação de um modelo de ajuste
(Revista Brasileira de Zootecnia, 1998-11-01) [Artigo]
Measurements of scrotal circumference (SC) of 8934 young Nelore bulls, distributed on 346 contemporary groups (GC) from herds under tropical pasture conditions, were analyzed. The GC, with at least five animals each, were ...
Fatores de correção do perímetro escrotal para efeitos de idade e peso ao sobreano de tourinhos nelore
(Revista Brasileira de Zootecnia, 1998-11-01) [Artigo]
The aim of the study was to estimate adjustment factors to be used in genetic selection programs. Measurement data of scrotal circumference Nellore breed bulls from different herds raised on Brazilian tropical pasture ...
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 ...
Uso de polinômios segmentados para o estudo da curva de lactação de búfalos da raça Murrah e seus mestiços em sistema de criação semi-intensivo, no estado de São Paulo
(Livestock Research for Rural Development, 2008-08-01) [Artigo]
Considering the need to better understand the curve of lactation and the little information of this nature with buffalo, the purpose of this study was to evaluate the use of Polynomials Segments, data from models ...