The three fungal samples were identified as S. parasitica. In Trial 1, substantial fungal growth on channel catfish eggs was observed in all control egg jars, whereas chemical treatment groups had reduced observable fungal growth on eggs in comparison to the controls. In Trial 2, fungal growth was substantially less in all egg jars compared to the fungal growth observed in Trial 1. Mean percent hatch on Trial 1 (Table 1) was 44% (control), 54% (500 mg l−1), and 69% (750 mg l−1). Hydrogen peroxide treatment at either 500 or 750 mg l−1 significantly increase the probability of hatch compared to the untreated control group (P<0.01). In Trial 2, the mean percent hatch (Table 1) was 57% (control) and 67% (500 mg l−1). Hydrogen peroxide treatments of 500 mg l−1 significantly increased the probability of channel catfish egg hatch compared to untreated control eggs (P<0.01). Removal of the gelatinous matrix (Trial 2) significantly (P<0.05) increased the probability of hatch in both treated and control groups compared to eggs cultured in the natural matrix (Trial 1).
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