Effects of repetitive formalin treatments on channel catfish juveniles
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Abstract
Channel catfish Icialurus punctatus ranging from 70 to 148 mm in total length were treated with formalin at a concentration of 25 μL/L for 4 h daily on four successive days each week over a 28-week period beginning in mid-September. Coefficients of condition (weight-tolength ratios) and histological examinations of gill tissues were used to evaluate health of fish exposed to formalin. Gill tissues of both formalin-treated and untreated fish showed effects typical of intensive culture, including hypertrophy, hyperplasia, and excess mucous secretion; no differences were found in gill morphometry between the two groups. Channel catfish periodically treated with formalin had a significantly higher coefficient of condition (P < 0.05) after 28 weeks and no indication of adverse effects attributable to formalin.
| Publication type | Article |
|---|---|
| Publication Subtype | Journal Article |
| Title | Effects of repetitive formalin treatments on channel catfish juveniles |
| Series title | Journal of Aquatic Animal Health |
| DOI | 10.1577/1548-8667(1993)005<0059:EORFTO>2.3.CO;2 |
| Volume | 5 |
| Issue | 1 |
| Year Published | 1993 |
| Language | English |
| Publisher | Wiley |
| Contributing office(s) | Leetown Science Center |
| Description | 5 p. |
| First page | 59 |
| Last page | 63 |
| Google Analytic Metrics | Metrics page |