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首页> 外文OA文献 >Comparison of Percent Hatch and Fungal Infestation in Channel Catfish Eggs after Copper Sulfate, Diquat Bromide, Formalin, and Hydrogen Peroxide Treatment
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Comparison of Percent Hatch and Fungal Infestation in Channel Catfish Eggs after Copper Sulfate, Diquat Bromide, Formalin, and Hydrogen Peroxide Treatment

机译：硫酸铜，敌草快溴化物，福尔马林和过氧化氢处理后斑点鲶鱼卵中孵化百分比和真菌感染的比较

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摘要

Reduced survival of fish eggs is often a result of infestation with fungi Saprolegnia spp. However, timely chemical treatments often limit these infestations and increase survival. The effect of copper sulfate pentahydrate (CSP; 10 mg of CSP/L of water), diquat bromide (25 mg of diquat cation/L), formalin (433 mg/L), and hydrogen peroxide (H2O2; 250 mg/L) on percent hatch and fungal infestation in eggs of channel catfish Ictalurus punctatus was compared in two identical trials (five replicates for each chemical treatment per trial). The percent hatch in all chemical treatments was significantly better than percent hatch of the controls. The amount of fungal coverage on egg masses treated with CSP, formalin, and H2O2 was significantly less than that observed on the controls. Although not statistically different from the other treatments, H2O2 at 250 mg/L exhibited the highest average percent hatch (64%; control hatch = 34%), the lowest fungal coverage (1.5 cm; control coverage=7.2 cm), and the lowest occurrence of fungi (50%; control occurrence = 100%) among the treatments.
机译：鱼卵存活率降低通常是由于腐烂腐烂菌（Sprolegnia spp）侵染的结果。但是，及时的化学治疗通常会限制这些侵染并增加生存率。五水硫酸铜（CSP; 10 mg CSP / L水），敌草快溴化物（25 mg敌草快阳离子/ L），福尔马林（433 mg / L）和过氧化氢（H2O2; 250 mg / L）的作用在两项相同的试验中比较了channel鱼Ictalurus punctatus卵的孵化率和真菌侵染百分比（每个试验中每种化学处理重复五次）。所有化学处理中的孵化百分比均显着优于对照的孵化百分比。用CSP，福尔马林和H2O2处理的鸡蛋块上的真菌覆盖量明显少于对照。尽管与其他处理在统计学上没有差异，但250 mg / L的H2O2表现出最高的平均孵化率（64％；对照孵化率= 34％），最低的真菌覆盖率（1.5 cm；对照覆盖率= 7.2 cm）和最低的在治疗中真菌的发生率（50％；对照发生率= 100％）。

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