抄録
Destruction of spinal cord and bleeding at death were tried to keep the fish muscle freshness. ln case of yellowtail and red sea bream, the sample whose spinal cord was destroyed (tested) showed the delay in onset of nigor mortis comparted with the control sample. On the other hand, in case of plaice, the tested sample attained full-rigor faster thean the control. Rate of ATP consumption was slower in the tested than the control in yellowtail and red sea bream, except for plaice. On the other hand, bleeding caused the dely of muscle softening in the plelagic fish, but not in the demersal fish. Transmission electron microscopy showed the delay of degradation of pericellular collagen fibrils in bled pelagic fish.
These results indicate that destruction of spinal cord and removal of blood have different effects for keeping the fish muscle quality
