Característica de lombo (Longíssimus lumborum) de ovelhas de descarte terminados em diferentes períodos de confinamento

Abstract

The purpose of this study was to evaluate the effect of confinement period about the measures and the tissue composition of the culling ewes back weight weaning their lambs. Fifteen culling ewes were used to breed mongrel, older than 5 years. They were distributed into three groups: T10 = 5 sheep slaughtered with 10 days of confinement; T20 = 5 sheep slaughtered with 20 days of confinement; T30 = 5 sheep slaughtered with 30 days of confinement. These animals were discarded because of productive and reproductive performance below expected. The different periods of confinement did not affect the weight of the back, weights and yields of muscle and bone, presenting the following average: 0.894 kg, 50.31% and 0.454 kg, 0.143 kg and 16.07%, respectively. Higher values were obtained for weight and fat yield in animals that remained confined 30 days. The following average values were found to AOL (10.43%), maximum depth (47.41 mm) and minimum (26.48 mm), they showed no difference (P> 0.05). However, the confinement period that showed the best results for maximum and minimum thickness was 30 days. Among the treatments, which showed better results compared to fat cover, the sheep were confined 30 days after weaning their pups, time enough for them to produce carcasses with coverage and fat. Even as values within the recommended meat of sheep or discard old, has ideal conditions for fresh consumption. The use of this meat in the form of fermented sausages, which could be an alternative for a better use of it.