Características de la canal y rendimiento en cortes comerciales en novillos Criollo Argentino y Braford criados en sistemas extensivos ecológicos RESUMENSe estudiaron las características de las canales y el rendimiento en cortes comerciales de novillos de raza Criollo Argentino y Bradford criados en un sistema extensivo ecológico sin suplementación. Los novillos se sacrificaron a una edad media de 898 días y un peso de 401 kg. La valoración de las canales de novillos Braford fue superior a la de novillos Criollo Argentino, lo que repercutió en el precio (1.47 dólares.kg -1 vs. 1.42 dólares.kg -1 canal, respectivamente). Las canales de novillos Criollo Argentino proporcionaron porcentajes superiores de cortes de Primera categoria (51.0% vs. 49.4%) y menores para las piezas de Segunda (26.9% vs. 27.6%) y Tercera categoria (22.1% vs. 23.2%). Así mismo, las canales de novillos Criollo Argentino presentaron menor cantidad de grasa (3.9% vs. 5.5%) y mayor porcentaje de carne vendible (86.7% vs. 85.6%), lo que motivo un mayor precio medio de la carne (2.78 dólares.kg -1 carne vs. 2.76 dólares.kg -1 carne). En sistemas extensivos sin suplementación y en las condiciones de la experiencia, las canales de novillos Braford presentaron un mayor rendimiento y nivel de engrasamiento, mientras que las canales de novillos Criollo Argentino proporcionaron mayor porcentaje de carne vendible. En conjunto, los ingresos obtenidos con novillos Braford fueron superiores a los registrados con novillos Criollo Argentino. Palabras clave: bovinos, despieceCarcass characteristics and commercial meat yield in Criollo Argentino and Braford steers reared in extensive ecologic system AB S TR ACTWe studied carcass characteristics and commercial joints of Criollo Argentino and Braford steers reared in an extensive ecologic system, without supplementation. Steers were slaughtered at an average age of 898 days and weighing 401 kg. The Braford steers had higher scores for carcass assessments and higher percentages for carcass yield and excess fat on the carcass than Criollo Argentino steers, which resulted in the price (1.47 dollars.kg -1 vs. 1.42 dollars.kg -1 channel, respectively). The carcasses of Criollo Argentino steers had higher percentages of prime category cuts (51.0% vs. 49.4%) and lower of second (26.9% vs. 27.6%) and third category cuts (22.1% vs. 23.2%). The carcasses of Criollo Argentino steers had less fat (3.9% vs. 5.5%) and highest percentage of salable meat (86.7% vs. 85.6%), which cause a higher purchase prices of meat (2.78 dollars.kg -1 meat vs. 2.76 dollars.kg -1 meat). In extensive systems without supplementation and the terms of the experience, the carcasses from Braford steers had a higher yield and fatness, while the carcasses from Criollo Argentino steers provided greater percentage of salable meat. Overall, revenue from Braford steers were higher than those registered with Criollo Argentino steers.
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