Desempenho, biometria e não-constituintes de carcaça de ovinos Santa Inês de diferentes biotipos e pesos de abate.

Abstract

The sheep industry consolidates every year as one of the agricultural activities with highest development, in view of the technological advancements in the animal production area. Meat is the main product of sheep, being an important source of income for agricultural producers, which are also investing in the marketing of the weight of components, which are an additional to their income. Several methods are being employed so that customers can get a quality product; methods such as breeding, crossing, biometrics, all of them apply for the creation as a means of enhancing and improving animal performance. This study aimed to evaluate the performance, consumption, biometric measurements and sheep carcass of non-constituents Santa Ines of different biotypes and slaughter weights. 36 lambs of Santa Ines were used, 18 traditional racial type (small body frame) and 18 of modern racial type (large body structure). They were distributed in a completely randomized design in a 2x2 factorial (two biotypes racial x two groups of slaughter weight), where they remained confined until they reached the weight of pre-established slaughter. Biotypes and slaughter weight did not influence significantly the performance of the animals; however the variable total weight gain got the best results for the animals of traditional biotype for both slaughter weights, for the variable average daily gain weight, Traditional biotype weighing 32 Kg expressed best result. There was interaction and significant influence the consumption of some nutrients by animals, with a predominance of traditional biotype of animals (small body structure). Most biometric characteristics have not suffered significant influence, as well as the weight and performance of the weight of components, especially those edible. Thus, the differences between biotypes were not enough to change the animal's body structure, as different slaughter weights considered no differences in the body non-edible constituents.