Influence of feed withdrawal before slaughter on meat quality of local meat-type chicken in summer.

摘要

The influence of feed withdrawal before slaughter on meat quality of local meat-type chickens in summer was evaluated. Tsushima crossbreds which are one of the local meat-type chickens were subjected to 0, 16, or 36 h feed withdrawal before slaughter. Measures of meat quality included muscle pH, meat colour, and cooking loss. Muscle pH of leg meat was higher, as feed withdrawal time increased (p<0.05). But the influence of feed withdrawal on muscle pH of breast and sasami meat was not significant.In leg meat, lightness (L* value) of meat colour was lower, as feed withdrawal time increased (p<0.05). But the influence of feed withdrawal on meat colour of breast and sasami meat was not significant. Cooking loss of leg meat was lower, but that of breast meat was higher, as feed withdrawal time increased. These results indicate that feed withdrawal affect meat quality of local meat-type chicken, especially leg meat pH and colour.