ZBRK.htm

NR ZBRK

AU Walker,J.M.; Buhr,R.J.; Fletcher,D.L.

TI Investigation of processing factors contributing to hemorrhagic leg syndrome in broilers

QU Poultry Science 1993; 72: 1592-6

PT journal article

AB Broiler processing trials were conducted to determine the effects of dark-conditioning, electrical stunning, picking, and femoral vein flushing on the occurrence of hemorrhagic leg syndrome (HLS). Broilers were processed using the following treatments: 1) dark-conditioning for 10 min, stunning, and killing in the dark; compared with controls processed by holding in coops, hanging, stunning, and killing in daylight; 2) electrical stunning with 100 V alternating current for 2 s compared with controls that were not stunned; 3) picking for 30 s in a rotary drum picker compared with controls that were not picked; 4) flushing the femoral vein with saline compared with controls that were not flushed. After chilling, broiler legs were scored subjectively (1, 2, or 3) for the presence and severity of HLS. Scoring was based on a three point scale with 1 = no apparent HLS, 2 = moderate HLS, and 3 = severe HLS. Results indicated that dark-conditioning, drum picking, and flushing did not significantly (P > .05) increase or decrease the incidence or severity of HLS. Electrical stunning consistently resulted in significantly (P < .05) higher incidence and severity of HLS. Flushing the femoral vein reduced surface blood splash at the proximal end of the femur and resulted in less blood retention in the femoral vein.

AD UNIV GEORGIA,DEPT POULTRY SCI,ATHENS,GA 30602

SP englisch

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