Studies on weak electromagnetic fields effects in chick embryos. Annual report, June 1985-June 1986

Technical Report · Sat May 31 04:00:00 EDT 1986

OSTI ID:5414402

This research was directed to test some experimental conditions of the Henhouse project and to enforce a previous study on VLF electromagnetic fields effects on chick embryos. Henhouse Project: the response of White Leghorn Hisex embryos to field exposures effective on the Shaver breed, was studied. 1) A 48-hour exposure, in vivo, to a pulsed horizontal field of 100-Hz frequency, 1.0 micro T intensity, 500-microsecond pulse duration and 2-microsecond rise time induced a significant increase of developmental abnormalities in Hisex embryos. 2) A five-hour exposure of stage 7 Hisex embryos changed the Mitotic Index of their neural tissue. So, the early development of Hisex embryos, like Shaver embryos, can be modified by VLF pulsed electromagnetic fields. In the protocol of the Henhouse project, it was suggested a temperature of 38 C for eggs incubation. Studying the development of chick embryos in relation to the temperature, in the range of 37.4-40 C, it was confirmed that a 48-hour incubation at 38 C (with 55% humidity) does not induce abnormalities and allows a convenient developmental growth rate of the chick embryos. Electromagnetic fields effects in relation to the embryos orientation: preliminary results on the induction of abnormalities in field exposed embryos in relation to their orientation were confirmed. In a East-West oriented horizontal pulsed field, the organisms oriented to Southwest and Southeast showed a significant increase of developmental abnormalities. No effect was appreciable among the embryos Southward oriented.

• Research Organization: Ceskoslovenska Akademie Ved, Praha. Inst. of Experimental Botany
• OSTI ID: 5414402
• Report Number(s): AD-A-168313/5/XAB
• Country of Publication: United States
• Language: English

Related Subjects

560400* -- Other Environmental Pollutant Effects
63 RADIATION, THERMAL, AND OTHER ENVIRON. POLLUTANT EFFECTS ON LIVING ORGS. AND BIOL. MAT.
ANIMALS
BIOLOGICAL EFFECTS
BIOLOGICAL RADIATION EFFECTS
BIRDS
CELL DIVISION
CHICKENS
DOCUMENT TYPES
EGGS
ELECTROMAGNETIC FIELDS
EMBRYOS
FOWL
INDEXES
MITOSIS
NERVES
NERVOUS SYSTEM
RADIATION EFFECTS
VERTEBRATES