SUMMARY
The influence of carbon materials of various sizes on chicken embryos, obtained from the incubation of eggs from the breed High line white was researched. Solution of activated charcoal, nanodiamonds, soot and thermo-activated graphite on biocompatible dextran was injected into the embryos' yolk sack on the third day of incubation and evaluation of their size and condition of the yolk sack wall vessels was held on the sixth, fourteenth and twentieth days of incubation. The eggs from the intact group were incubated within the same conditions but weren't influenced by any external factors. The negative effect of the soot on condition of the yolk sack wall vessels and of the nanodiamonds and thermo-activated graphite on the both indexes of chicken embryogenesis were shown.