Blood splash and carcass defects were analyzed from beef cattle in Seoul slaughter house and Hanwoo in nationwide all slaughter houses from 2003 to 2007. Carcass defects was analyzed by carcass grade (70,982 cattle) from different marketing province (Seoul-Gyunggi, Chung-nam, Chung-buk, Jeon-buk, Jeon-nam, Gyung-buk, Gyung-nam), sexes (male, female, steer), and breed (33,000 Hanwoo, 7,000 dairy cattle, 37,000 beef cattle). Data were analyzed not by the statistical differences but differences by items and years. Slaughtered cattle in Seoul slaughter house were came from Seoul-Kyunggi (37.8%), Chung Nam-Buk (28.5%), Kyung Buk (11.5%) and rest of province. Incidence of blood splash in Seoul slaughter house was 1.14% in Hanwoo, 0.72% in dairy cattle, and 2.96% in beef cattle and it was the highest in steers. In general, blood splash in nationwide was 0.26～0.32% in Hanwoo, and then it was 80.1～85.5% of carcass defects. This incidence was increased in 2006. However, intrinsic and extrinsic factors, such as transport method, distance, animal density etc, may effect on blood splash in Hanwoo. In conclusion, blood splash would be controlled by the manipulation of beef cattle management during transportation. Blood splash incidence was different among marketing province to Seoul slaughter house, and all carcass defects was increased gradualy during five years in nationwide.
