Efficacy of Hydrogen Peroxide in Controlling Mortality Associated with Saprolegniasis on Walleye, White Sucker, and Paddlefish Eggs

Autor:	Mark Drobish, Jerry Hamilton, Jeffrey J. Rach, Clark Moen, Tom Harder, Mark P. Gaikowski, Alan Moore, Lynn A. Lee
Rok vydání:	2003
Předmět:	Veterinary medicine Hatching Stizostedion Aquatic animal Aquatic Science Biology White sucker biology.organism_classification Hatchery Fishery chemistry.chemical_compound chemistry parasitic diseases embryonic structures Paddlefish Hydrogen peroxide Incubation
Zdroj:	North American Journal of Aquaculture. 65:349-355
ISSN:	1548-8454 1522-2055
DOI:	10.1577/c02-054
Popis:	The efficacy of hydrogen peroxide in controlling saprolegniasis on eggs of walleye Stizostedion vitreum, white sucker Catostomus commersoni, and paddlefish Polyodon spathula was evaluated at four private, state, and federal production hatcheries participating in an Investigational New Animal Drug efficacy study (experiment 1; walleyes) and in a laboratory-based miniature egg jar incubation system (experiment 2; walleyes, white suckers, and paddlefish). Naturally occurring fungal infestations (saprolegniasis) were observed on eggs in both experiments. Confirmatory diagnosis of infested eggs from one hatchery in experiment 1 identified the pathogen as Saprolegnia parasitica. During experiment 1, eggs were treated daily for 15 min with either 0, 500, or 750 mg/L of hydrogen peroxide, and one trial compared a 500-mg/L hydrogen peroxide treatment with a formalin treatment at 1,667 mg/L. Saprolegniasis infestation was observed in control egg jars, whereas treatment with either formalin or hydrogen pero...
Databáze:	OpenAIRE
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