Open-access Vascular growth in yolk sac membrane and embryonic development of Japanese quail (Coturnix japonica) exposed to low frequency magnetic field

The aim of this study was to observe the influence of the low frequency magnetic field (MF) on the yolk sac membrane (YSM) and embryonic development of Japanese quail (Coturnix japonica) in 72 hours of incubation. Fertilized eggs were exposed to 9 consecutive hours of MF, with a group from 48 hours and the second group from 63 hours of incubation. The evaluation of YSM vascularization was determined by the fractal dimensions obtained through box-counting method and information dimension, while body weight of the embryo and percentage of cephalic length were used as parameters for embryo development. The MF caused no significant differences in vessel density in the YSM, nor in the embryonic development considering the body weight and percentage cephalic length, when were compared to the control group.

magnetic field; fractal dimension; quail embryos; yolk sac membrane; vascularization


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Universidade Federal de Minas Gerais, Escola de Veterinária Caixa Postal 567, 30123-970 Belo Horizonte MG - Brazil, Tel.: (55 31) 3409-2041, Tel.: (55 31) 3409-2042 - Belo Horizonte - MG - Brazil
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