Níveis de inclusão do bagaço de mandioca na ração de frangos de crescimento lento: características físico-químicas da carne

Abstract

The purpose of this study the effect of inclusion levels (0, 10, 20 and 30%) of cassava bagasse (BM) to the diet on the physical and chemical parameters of raw and cooked meat thigh , drumstick and breast of chicken was to evaluate cutting hillbilly kind of lineage Label rouge® slaughtered at 84 days of age . Analyzes were performed in the laboratory of Animal Nutrition , Universidade Federal do Tocantins – UFT, Escola de Medicina Veterinaria e Zootecnia , Campus Araguaina . Forty chicken carcasses, which were divided into half-carcases, half-carcases and 10 for analysis of the chemical composition of raw meat and the other 10 half-carcasses for analysis of chemical composition of cooked meat , they are included in these analyzes the crude protein (CP), ether extract ( EE), dry matter (DM) and ash (CZ), with base on the percentage of dry matter, in addition to gross energy (GE) and cooking losses. Analyzes were also conducted of the physical attributes of meat (color, pH and texture) other 20 half-carcasses. The inclusion of BM in the diet of broilers caipira type cut and cooking affected (P <0.05) the chemical characteristics of meat. Observed in thigh meat linear reduction in the deposition of CZ and linear increase in deposition of PB. Drumstick meat in CP content increased up to the level of 17.22% inclusion of BM corresponding to the deposition of 84.21% CP; and lower levels of EE (19.21%) was found in the estimated level of 21.33% inclusion of BM. In breast meat was observed deposition of 29.56% with 2.35% DM inclusion of BM deposition and 88.56% to 13.46% of CP inclusion of BM. However the physical characteristics of meat were not influenced by the levels of inclusion of BM. It is recommended, with base on the chemical composition of the meat, to use up the 20% level of inclusion of BM.