The effects of electrical stimulation during bleeding on shear values and cook loss of breast fillets from mature chickens deboned at two or twenty-four hours post-evisceration

Journal of Applied Poultry Research

Volumn 11, Issue 1, 2002, Pages 111-116

  Dickens, J A ^a   Lyon, C E ^a   Buhr, R J ^a  

^a RUSSELL RESEARCH CENTER   (United States)

Author keywords

Broiler breeder hen; Cook loss; Electrical stimulation; Shear value

Indexed keywords

AVES; GALLUS GALLUS;

EID: 0035982012     PISSN: 10566171     EISSN: None     Source Type: Journal    
DOI: 10.1093/japr/11.1.111     Document Type: Article

References (27)

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15. SF-7000 pre-stunner brine cabinet, Simmons Engineering, Dallas, GA.
16. SK-5 automated knife, Simmons Engineering, Dallas, GA.
17. Electrical stimulation was accomplished by dragging the head of treated carcasses on a charged plate with the shackles being grounded. Two hundred volts alternating current was pulsed 1 s on and 1 s off for 30 cycles during the last 60 s of bleeding. Each carcass drew between 128 and 132 mA.
18. Johnson Food Equipment Co., Kansas City, KS.
19. Kane-May, Swallowfield, Welyn Garden City, Hertfordshire, AL 1JG, UK.
20. A template was placed on the fillets, with two 1.9 cm wide strips being excised with a knife from the anterior region of the cooked muscle. Orientation of the first strip was from the humeral insertion to the keel parallel to the fiber, and the second strip was directly posterior to the first. Due to the size of the cooked muscles, the height of all samples had to be trimmed to 1.9 cm with the same template. This trimming resulted in a sample that was 1.9 cm wide and 1.9 cm high. The top of the strip (closest to the skin) was used for shear force measurement. Each strip was sheared once, and the two values were averaged to obtain the final shear value for each fillet. Three replications of 48 birds per replication were used for a total of 72 fillets per treatment per deboning time with 2 shears per fillet per treatment per deboning time for a total of 576 shears.
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24. Lyon, C.E., C.E. Davis, J.A. Dickens, C.M. Papa, and J.O. Reagan, 1989. Effect of electrical stimulation on post-mortem changes and texture of broiler pectoralis muscle. Poult. Sci. 68:249-257.
25. Walker, L.T., S.D. Shackelford, S.G. Birkhold, and A.R. Sams, 1995. Biochemical and structural effects or rigor morris-accelerating treatments in broiler Pectoralis. Poult. Sci. 74:176-186.
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27. Lyon, B.G., and C.E. Lyon, 1991. Research note: Shear value ranges by Instron Warner-Bratzler and single blade Allo-Kramer devices that correspond to sensory tenderness. Poult. Sci. 70:188-191.