Table 2.
Efficacy of high dose oral treatment with emamectin benzoate (SLICE®) for Pseudocapilliaria tomentosa with treatment initiated during active infection. Fish were held in three replicate tanks/group with 20 fish/tank. Approximately half the fish from each tank were examined at each sampling date. Controls represent unexposed fish.
Untreated Exposed | Treated Exposed | Untreated Control | Treated Control | |||||
---|---|---|---|---|---|---|---|---|
DPT† (DPE‡) | 22(50) | 30(58) | 22 (50) | 30 (58) | 22(50) | 31(58) | 22(50) | 31(58) |
Number | 20 | 12 | 25 | 15 | 27 | 28 | 27 | 28 |
Prevalence (%) | 95 | 92 | 67 | 60 | 0 | 0 | 0 | 0 |
Abundance§ | 6.45 | 3.00 | 2.46 | 2.20 | 0 | 0 | 0 | 0 |
Prevalence (%) Mature ¶ | 55 | 42 | 21 | 13 | 0 | 0 | 0 | 0 |
Abundance Mature | 1.00 | 0.67 | 0.33 | 0.13 | 0 | 0 | 0 | 0 |
Weight (mg) | 188 | 196 | 223 | 235 | 354 | 308 | 324 | 334 |
Male/Female Ratio | 9/11 | 5/7 | 12/13 | 4/10 | 8/19 | 11/16 | 10/17 | 10/18 |
Mortality (%) # | 11.7 | 63.6 | 3.4 | 44.1 | 0 | 0 | 0 | 0 |
DPT = days post treatment
DPE = days post exposure
Abundance = worms/fish, including negative fish within the population.
Adult female worms with eggs
Percent mortality between 0–50 dpe or 51–58 dpe