Avaliação dos parâmetros que influenciam no aumento da capacidade de retenção de água em carcaças de frango inteiro

Abstract

Within the poultry slaughtering industry, the percentage of water absorbed by the carcass during the pre-cooling process is one of the most important gains in terms of final product quality, carcass yield and consequently profitability. In order to ensure that this process is efficient and satisfactory, it is necessary to control some variables such as chiller water temperature, air injection system (bubble) and retention time of the casings in the system, among others less influential but not less important as Slaughter line, fasting time of the bird, amount of organic matter present in the water of the immersion system, lineage, sex, age, etc. In this context, the present work had as objective to test different parameters within some variables in order to change the current scenario of the refrigerator, increasing the percentage of absorption and establishing an ideal process standard, keeping them stable during all the production shifts. The study was carried out in a poultry slaughterhouse of Paraná during its normal routine, where the samples were chicken carcasses weighing 1 kg and 3 kg live weight, COBB and ROSS females. The tests were performed with the water temperature parameters of the chillers (worm-type chiller), bubble system and retention time, where it was defined the application of the combination of these three variables, with an ideal temperature for pre-chiller of 12 ° C, chiller of 1 ° C, bubble system connected in chiller and pre chiller and retention time of 60 minutes. The results of the tests showed that using these parameters for the variables tested, it is possible to reach the target of 6.5% absorption in this work, and that the gain from this can reach 1,336,599 kg in the year.