Table 2. Efficacy of ivermectin in the treatment of the off-white grub disease in channel catfish after 3 and 6 days of treatment

Injection dose (mg Ivermectin/kg body weight)	Number of experimental fish	3^rd day post-injection (n=4)		6^th day post-injection (n=4)
Injection dose (mg Ivermectin/kg body weight)	Number of experimental fish	Treatment effect	Infection intensity index (metacercariae/g liver)	Treatment effect	Infection intensity index (metacercariae/g liver)
0.20	8	–	2.61 ± 0.37	–	1.80 ± 0.78
0.30	8	–	1.26 ± 0.26	+	0
0.40	8	+	0	+	0
0.50	8	+	0	+	0
0.60	8	+	0	+	0
0.70	8	+	0	+	0