Avaliação das características de carcaça de novilhos nelore suplementados a pasto na estação chuvosa ; Carcass characteristics of nelore steers raised in pastures and supplemented in rainy season

The basis of sustentation of cattle breeding in Brazil are pasture, implanted in 171 millions of ha. In the 35,7 millions of animals slaughtered in Brazil, just 1,5 millions are terminated confined, the remain, approximatedly 34,2 millions, are maintain at pasture. At the last decade, the brazilian creators of cattle for slaughter, making use of techniques of management and alimentation, has searched to product young bovines to slaughter, obtaining more productivity and quality of carcass, and a more quick return of the investiments and better remuneration. Considering the necessity of increase of the productive efficiency to commercial viabilization of the activity and the importance of the nutrition in this process, the evaluation of alternatives of supplementation is necessary. The objective of this experiment was to evaluate the effects of mineral supplementation and complete supplementation (mineral, protein, energy and vitamin) in the characteristics of carcass of Nelore, steers at pasture in the rainy season. The cattle in this study has been maintained in pasture during the rainy season. The 156 days of the season were divided into five periods, and 60 animals were evaluated. They were raised in pastures of Brachiaria bryzantha cultivar Marandu. At the beginning of the study the animals weighed a medium of 292,3kg (±19,2) and 27months (±2.6). They were submitted to three treatments: mineral supplement, complete supplement and a complete offered in two parts, one with the mineral salts and other with the other nutrients. There was no effect of treatments (P>0,05) for the loin area, external fat, composition of the carcass in the forequarter, hindquarter and side cut, carcass dressing and weight loss during refrigeration. ; UFG ; CNPq ; Capes ; A base de sustentação da pecuária de corte no Brasil são as pastagens, implantadas em aproximadamente 171 milhões de hectares. Das 35,7 milhões de cabeças abatidas anualmente no Brasil, apenas 1,5 milhões são terminadas em regime de confinamento, o restante, ...