Effects of gradual temperature reduction on the activity and survival rate of pronghon spiny lobster (Panulirus penicullatus) during dry system transportation
1997
Suryaningrum, T.D. (Balai Penelitian Perikanan Laut, Jakarta (Indonesia)) | Setiabudi, E. | Erlina, M.D.
Behavior of pronghon spiny lobster (Panulirus penicullatus) during gradual temperature reduction and their survival during dry transportation system had been observed. The gradual temperature reduction was carried out 5 degree C per hour using large and small size lobsters. The survival rate of the lobster was tested after anasthetilization at 16 degree C for 15 minutes followed by storage in cooled sawdust for 9; 12; 15; and 18 hours. The results showed that small and large pronghon spiny lobsters had the same physiological response to gradual temperature reduction, although the small size had 1 degree C higher critical point. The treated lobster showed physiological activities at distinguishable 8 temperature ranges i.e (1) normal activity (25-21 degree C), (2) slightly reduced activity (21-18 degree C), (3) slow and calm (18-16 degree C) (4) still active (16-14 degree C), (5) uncontrollable movement (14-12 degree C), (6) fell down (12-11 degree C), (7) unconscious (10-8 degree C), and (8) dying (7-1 degree C). The survival rate of lobster anasthetized at 16 degree C for 15 minutes and stored in cooled sawdust up to 18 hours was 100 percent
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