Características de carcaça e carne de novilhos de diferentes predominâncias genéticas alimentados com dietas contendo níveis de substituição do grão de milho pelo grão de milheto
Carregando...
Data
2015-04
Título da Revista
ISSN da Revista
Título de Volume
Editor
Universidade Estadual de Londrina
Resumo
This study aimed to assess the carcass characteristics of European crossbred young bulls or Zebu
feedlot finished with diets with high percentage of concentrate (80%) containing different levels of pearl
millet grain as replacement for corn grain (0, 33, 66 and 100%). Forty-five young bulls with genotype
predominance of Aberdeen Angus and forty-four young bulls with genotype predominance Nellore with
average initial weight of 317.8 and 320.7 kg, respectively, and average age of 21 month, were allocated
in 16 collective pens. At the end of the finishing period were slaughtered six animals of each genetic
group, chosen according to the body weight and degree of finishing each treatment. The experimental
design was the completely randomized design with treatments in a 4x2 factorial arrangement using six
replicates. The replacement of corn grain by millet grain did not significantly influence slaughter weight
(480.4 kg), hot carcass weight (259.5 kg), carcass yield (54.1%) and subcutaneous fat thickness (3.95
mm). Young bulls with genotype predominance of Aberdeen Angus showed significantly higher values
for slaughter weight (507.6 vs. 453.3 kg), hot carcass weight (269.6 vs. 249.3 kg) and longissimus dorsi
area (65.34 vs 56.83 cm2), however, were lower in carcass yield (53.2 vs. 55.0%). Millet grain can be
used in substitution to corn grain for finishing steers since it does not change carcass traits of economic
interest.
Descrição
Palavras-chave
Aberdeen angus, Gordura de cobertura, Nelore, Peso de carcaça, Traseiro especial, Carcass weight, Nellore, Pistol cut, Subcutaneous fat
Citação
SILVA, Rodrigo Medeiros da; RESTLE, João; MISSIO, Regis Luis; BILEGO, Ubirajara Oliveira; PACHECO, Paulo Santana; REZENDE, Pedro Leonardo de Paula; FERNANDES, Juliano José de Resende; SILVA, Alexey Heronville Gonçalves da; PÁDUA, João Teodoro. Características de carcaça e carne de novilhos de diferentes predominâncias genéticas alimentados com dietas contendo níveis de substituição do grão de milho pelo grão de milheto. Semina: ciências agrárias, Londrina, v. 36, n. 2, p. 943-960, mar./abr. 2015.