Morphologic measurements end characteristics of meat and organs of Nellore and F1 Nellore x Sind castrated Cattle / Medidas morfofuncionais e características da carne e vísceras de bovinos castrados Nelore e F1 Nelore x Sindi.

AUTOR(ES)
DATA DE PUBLICAÇÃO

2006

RESUMO

The evaluation of the morphologic measurements, meat quality and weight of the organs of two groups of eight steers Nellore and F1 Nellore x Sind, males castrated, raised in confinement and slaughtered with 36 and 48 were the objective of this study. The experimental design was a completely randomized in factorial arrangement 2 (two genetic groups) x 2 (two ages). There was not interaction between genetic group and age for any characteristics studied. By the analysis of morphologic measurements, there was not difference (P>0,05) for depth of chest just behind elbow joint, heart girth, rump height and width, ischium distance, rump length, body length, big thigh thickness, conformation, anamorphogenesis and Baron index. While the Nellore x Sind had higher (P<0,05) height withers (139,5 vs 136,5 cm) than Nellore, the Nellore cattle had a greater (P<0,05) compactness (12,7 vs 11,6). There was not influence (P>0,05) of the genetic group and age for the weight of digestive tract, kidneys, liver and lungs. Nellore animals had higher (P<0,05) heart weight (1,6 vs 1,2 kg) and spleen (1,1 vs 0,9 kg) than F1 Nellore x Sind cattle. The fat colour, luminosity and yellow intensity were similar (P>0,05) for both genetic groups and age. However, red intensity in fat was higher (P<0,05) in Nellore (8,5 vs 7,4) than F1 Nellore x Sind cattle. Animals with 36 months had higher (P<0,05) red intensity in fat (8,5 vs 7,3) than 48 months. The genetic group and age did not influence (P>0,05) moisture, protein, fat and mineral contents of the meat, cooking losses, luminosity, meat red and yellow intensity. It was concluded that Nellore x Sind promote a reduction on heart and spleen weight and no alterations in the most meat characteristics studied. The height and compactness are greater in Nellore and F1 Nellore x Sind. With exception of the greater red intensity in fat, the age not influenced others characteristics studied.

ASSUNTO(S)

cor da gordura cor da carne baço spleen producao animal fat colour meat colour

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