Table 3 Effects of clove oil and MS-222 doses on recovery in large-sized and small-sized Far Eastern catfish, Silurus asotus*

Dose (mgL−1) Recovery time (sec)
Clove oil MS-222
Large size Small size Large size Small size
200 190±26.2a 133±13.2ab 377±46.6a 102±11.9a
300 183±10.1ab 131±14.2ab 285±41.6b 108±5.5b
400 179±10.1ab 129±9.4ba 274±61.8bc 109±8.0b
500 173±8.7b 129±13.6ba 206±28.4c 113±9.5c
600 170±10.3b 129±10.3ba 204±29.6c 114±9.5c
Each value is the mean±SD of a triplicate experiment (total n=60). Values in the same column not sharing common superscripts are significantly different (p<0.05). Large-sized specimens were sourced from 1-year-old hatchlings with an average body mass of 302.1±15.22 g and a standard length of 31.5±4.19 cm. Small-sized specimens were sourced from 2-month-old hatchlings with an average body mass of 50.1±5.91 g and a standard length of 15.5±1.58 cm.