ISSN:
1095-8649
Source:
Blackwell Publishing Journal Backfiles 1879-2005
Topics:
Biology
Notes:
The effect of feeding level (FL; 0·5 to 4% dry diet mass per wet fish body mass) and feeding frequency (once every 4 days to twice per day) on postprandial metabolic response was investigated in southern catfish Silurus meridionalis at 27·5° C. The results showed that there was no significant difference in the specific dynamic action (SDA) coefficient among the groups of different feeding levels (P 〉 0·05). The duration increased from 26·0 to 40·0 h and the peak metabolic rate increased from 207·8 to 378·8 mg O2 kg−1 h−1 when the feeding level was increased from 0·5 to 4%. The relationship between the peak metabolic rate (RP, mg O2 kg−1 h−1) and FL could be described as: RP = 175·4 + 47·3 FL(r2 = 0·943, n = 40, P 〈 0·001). The relationship between the SDA duration (D, h) and FL could be described as D=30·97FL0·248 (r2=0·729, n=40, P 〈 0·001).
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1111/j.0022-1112.2005.00722.x
