The use of potassium permanganate against trichodiniasis on milkfish (Chanos chanos) fingerlings
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Trichodiniasis was noted in an intensive milkfish (Chanos chanos) nursery pond in Dumangas, Iloilo, Philippines. It was predominantly caused by a small trichodinid species (body diameter=23-29 µm) with well-developed denticles, identified as Paratrichodina sp. The trichodinid infection resulted in proliferative changes, including clubbing and epithelial hyperplasis of the gill lamellae sufficient to disrupt respiratory function. Tolerance tests of milkfish fingerlings in an earthen pond-simulated environment resulted in a 24 h TL90 value of 1.98 ± 0.25 ppm KMnO4. A treatment of 1.0 ppm KMnO4 was highly efficacious (96%) in eliminating trichodinids on gills with minimal mortality of treated milkfish observed 24 hours post-treatment.
Suggested CitationPalma, P., Cruz-Lacierda, E. R., & Corre Jr., V. L. (2015). The use of potassium permanganate against trichodiniasis on milkfish (Chanos chanos) fingerlings.
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