Research Article 
Effects of Head-Only Electrical Stunning on the Physico-Chemical Characteristics
and Desmin Degradation of Broiler Breast Muscles at Different Time Postmortem
M.S. Salwani, A.Q. Sazili, I. Zulkifli, Z. Nizam and W. Zul Edham
Journal of Animal and Veterinary Advances, 2012, 11(14), 2409-2416.
Abstract
The study aimed to determine physico-chemical characteristics and myofibrillar proteolysis of breast muscles from broiler chickens subjected to head only electrical stunning. Pectoralis major muscles were collected from un-stunned (N = 25) and electrically stunned (N = 25) chickens at a commercial poultry processing plant. All samples were analysed for pH, color values, shear force, cooking loss and desmin degradation at 0, 4 and 24 h postmortem. The head only electrical stunning had significantly improved cooking loss and lightness (L*) of the pectoralis major muscles. Besides, there was a tendency for the stunning regime employed in this experiment to cause more rapid degradation of desmin over the 24 h postmortem storage.
ASCI-ID: 156-3569
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