СУБВІТАЛЬНІ МУТАЦІЇ СІЛЬСЬКОГОСПОДАРСЬКОЇ ПТИЦІ
In populations of fowl present hereditary burden of subvital mutations. In breeds of chiken brama and yurlovska vociferous there is "croked fingers." In ducks was described anomaly "tuft." Polimeliya typical for chickens, ducks and quail. Although these anomaies is non-lethal but they reduce the fitness of birds to environmental conditions.