Affiliation:
1. Federal University of Grande Dourados (UFGD), Dourados, Mato Grosso do Sul, 79825-070, Brazil
Abstract
This study considered the parameters of the halal market to evaluate different protocols for broiler electronarcosis regarding time to return of consciousness, bleeding efficiency, and carcass and meat quality at a broiler slaughterhouse. One hundred and eighty-four 43-day-old male broilers of the Cobb® strain were used. The experimental design used was completely randomized with 46 broilers for each protocol. The protocols used 80 V and 600 Hz, 50 V and 1000 Hz, 60 V and 1000 Hz, and 70 V and 1000 Hz. Time to return of consciousness, bleeding efficiency, bruising, presence of broken bones in pectoral muscle, and meat quality were evaluated. Birds subjected to stunning by the 50 V and 1000 Hz protocol showed the shortest time to return of consciousness after electronarcosis, and high incidence of breast hemorrhage. Birds subjected to the 60 V and 1000 Hz protocol had a higher percentage of broken bones in the pectoralis minor. The 50 V and 1000 Hz electronarcosis protocol fits better to the halal market due to the shorter time to return of consciousness and improved bleeding efficiency. This study suggests new proposals for stunning protocols to serve the halal market.
Publisher
Canadian Science Publishing
Subject
Animal Science and Zoology,Food Animals
Reference37 articles.
1. American Meat Science Association (AMSA). 2015. Research guidelines for cookery, sensory evaluation and instrumental tenderness measurements of meat. 2nd ed. AMSA, Chicago, IL. p. 104.
2. A Practical Guide to Animal Welfare during Halal Slaughter