carcaça e carne de novilhos cruzas pardo suíço x canchim e purunã x canchim terminados em confinamento feedlot performance and carcass and meat traits of crossbred braunvieh x canchim and purunã x canchim

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ID: 221178
2008
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Abstract
O trabalho teve os objetivos de avaliar o desempenho em confinamento e as características da carcaça e da carne de novilhos inteiros dos grupos genéticos ½ Pardo Suíço + ½ Canchim (1B1C), ½ Purunã + ½ Canchim (1P1C) e ¾ Purunã + ¼ Canchim (3P1C). Foram utilizados 23 novilhos inteiros com idade média de 22 meses, que permaneceram confinados por 145 dias. O aumento da proporção de genes Purunã na composição racial dos animais de 50% para 75% no cruzamento com Canchim resultou em incrementos de peso no abate (PA) e de ganho de peso (GMD) de 10,6 e, 12,1%, respectivamente. Os animais 1B1C apresentaram PA e GMD semelhantes aos animais 3P1C e superiores aos animais 1P1C. O consumo de matéria seca (MS) e o GMD não diferiram entre animais dos grupos 1B1C e 3P1C, ambos apresentando consumo e GMD superiores aos dos animais 1P1C (8,87; 7,97 e 7,02kg de MS animal-1 dia-1, e, 1,62; 1,41 e 1,58kg animal-1 dia-1, respectivamente). Animais 1B1C e 3P1C apresentaram carcaças 12,1% mais pesadas que os animais 1P1C. A conformação da carcaça dos animais 1B1C foi superior (15,0 pontos) em relação aos 1P1C e 3P1C (13,2 e 13,6 pontos, respectivamente). Animais 1B1C e 3P1C demonstraram valores similares para marmoreio da carne (7,5 e 6,6 pontos, respectivamente), e superiores em relação ao 1P1C (4,8 pontos). A produção de animais F1 Pardo Suíço x Canchin é mais interessante ao produtor, devido à maior velocidade de ganho de peso e maior peso de carcaça, ao frigorífico, por obter carcaças de melhor conformação e grau de acabamento, e ao consumidor, por apresentar maior grau de marmorização da carne e textura mais fina.
The research had the objectives of evaluating feedlot performance as well as carcass and meat traits of 23 young bulls from three genetic groups: ½ Braunvieh + ½ Canchim (1B1C), ½ Purunã + ½ Canchim (1P1C) and ¾ Purunã + ¼ Canchim (3P1C). The experimental animals were 22 months old, on average, at the beginning and remained in total confinement during 145 days. The increase in the proportion of Purunã gens, from 50% to 75%, in the cross with Canchim, brought about increment of slaughter weight (SW) and weight gain (GW) of 10.6 and, 12.1%, respectively. Animals 1B1C were superior to the 1P1c animals and similar to the 3P1C ones with respect to SW and GW. Likewise, the feed intake and GW were similar between animals of the1B1C and 3P1C, both being superior to the ½ P + ½ C animals. (8.87, 7.97 and 7.02kg animal-1 day-1; and, 1.62, 1.41 and 1.58kg animal-1 day-1, respectively). The 1B1C and 3P1C animals produced carcasses weighing 12.1% more than those of the 1P1C animals. Better carcass conformation scores were observed for the 1B1C animals in comparison to those from the1P1C and 3P1C ones. The group averages for this trait were 15.0 points versus 13.2 and 13.6 points, respectively. The 1B1C and 3P1C groups had similar averages for marbling score of the meat (7.5 and 6.6 points, respectively), both being superior to the ½ P + ½ C group that had an average marbling score of 4.8 points. The production of F1 Braunvieh x Canchim animals is advantageous for the entire beef cattle production chain. The producer benefits because these animals yield heavier carcass weight; the slaughter plants also gain with the better carcass conformation and degree of finish; and, finally, the consumer because the meat of these animals has better marbling and texture scores.
Reference Key
kuss2008cinciacarcaa Use this key to autocite in the manuscript while using SciMatic Manuscript Manager or Thesis Manager
Authors ;Fernando Kuss;José Luis Moletta;Daniel Perotto;Meiby Carneiro de Paula;Adriana de Souza Martins;Nilceu Lemos da Silva;Maria Celina Jorge Leme
Journal Trials
Year 2008
DOI
10.1590/S0103-84782008000400024
URL
http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782008000400024
Keywords
conformation intramuscular fat dry matter intake ganho de peso

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