Hatching in zebrafish (Danio rerio) embryos exposed to a 50 Hz magnetic field

Zebrafish embryos were exposed intra ovo to a 50 Hz AC magnetic field of 1000 μT rms, and the progress of asynchronous hatching was monitored. A statistically significant delay was observed when field exposure started 48 h after fertilization. In contrast, when exposure started 2 h after fertilizati...

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Bibliographic Details
Published in:Bioelectromagnetics 2000-07, Vol.21 (5), p.407-410
Main Authors: Skauli, Kirsten S., Reitan, Jon B., Walther, Bernt T.
Format: Article
Language:English
Subjects:
Animals
Danio rerio
EMFs
Female
hatching
low frequency
Magnetics - adverse effects
Male
Progesterone - pharmacology
Reproduction
Zebrafish - embryology
Zebrafish - growth & development
Zebrafish - physiology
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Summary:Zebrafish embryos were exposed intra ovo to a 50 Hz AC magnetic field of 1000 μT rms, and the progress of asynchronous hatching was monitored. A statistically significant delay was observed when field exposure started 48 h after fertilization. In contrast, when exposure started 2 h after fertilization, no statistically significant effect was seen. When field exposure was administered together with submaximal doses of progesterone at 48 h postfertilization, the two treatments appeared to delay hatching in an additive manner. Evaluating the progress of hatching in zebrafish embryos seems relevant for exploration of EMF effects on reproduction. Bioelectromagnetics 21:407–410, 2000. © 2000 Wiley‐Liss, Inc.
ISSN:0197-8462
1521-186X
DOI:10.1002/1521-186X(200007)21:5<407::AID-BEM10>3.0.CO;2-V