Classificação e tipificação de carcaças bovinas na região oeste da Bahia em duas épocas do ano

Autor: Paulo Sérgio de Azevedo, Bruno Rodrigues Paes, Alexandro Pereira Andrade, Danilo Gusmão de Quadros, Jorge Aurélio Macedo Araújo, Guilherme Augusto Vieira, Alisson Magalhães Miranda
Rok vydání: 2015
Předmět:
Zdroj: Boletim de Indústria Animal. 72:102-110
ISSN: 1981-4100
0067-9615
Popis: The final result of beef cattle production systems is verified in carcasses. However, in Brazil the cold storage facility rarely separates the products according to quality, especially in the northeastern region of the country. The objective of this study was to evaluate beef carcasses from the western region of Bahia during two seasons (rainy and dry) of the year according to the National Beef Carcass Grading System (Sistema Nacional de Tipificacao de Carcacas Bovinas - SNTCB). The evaluations were performed at a cold storage facility in Barreiras, Bahia, which is monitored by the Federal Inspections Service (Servico de Inspecao Federal - SIF). A total of 1,000 carcasses, half during the dry season (August) and the other half during the rainy season (December), were sampled. Descriptive statistics was used for data analysis and the mean and standard error of each response variable were obtained. The season of the year did not influence the sex of the animals slaughtered, with a balance between intact males (44%) and females (42%) and little participation of castrated males (14%). The degree of maturity of the slaughtered animals was high, with about 70% of the animals possessing more than four permanent incisors. The carcasses varied in terms of finishing from scores 2 to 4; 32% had a low fat cover (score ≤ 2) in the dry season and 52% in the rainy season. Prolonged drought affected the results. The conformation data indicated more than 90% of the carcasses to be rectilinear, subconvex and convex and most of them weighed less than 240 kg, the minimum weight recommended by cold storage facilities. Sixty-four percent of the carcass analyzed were graded as letter “I”, the penultimate score of the official system (B-R-A-S-I-L). Regardless of the season of the year, cattle slaughtered in the western region of Bahia resulted in low-quality carcasses due to the high degree of maturity, inadequate conformation and finishing, and low weight of the animals. Genetic improvement and adequate management are necessary to produce high-quality carcasses.
Databáze: OpenAIRE
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