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.
Suggested Citation
Bodensteiner, L., Sheenan, R., Lewis, W., Wills, P., Herman, R., 1993, Effects of repetitive formalin treatments on channel catfish juveniles: Journal of Aquatic Animal Health, v. 5, no. 1, p. 59-63, https://doi.org/10.1577/1548-8667(1993)005<0059:EORFTO>2.3.CO;2.
| 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 |