[Changes in the serum protein fractions of pigeons in experimentally reproduced food toxinfection].

Paper electrophoresis was employed to analyze changes taking place in the composition of the blood serum protein fractions of pigeons following an experimental reproduction in them of toxinfection caused by Cl. perfringens, type A, and also upon exposure of the pigeons to a high and low temperature, as factors conducive to the development of toxinfection. The blood serum protein fractions of the diseased birds showed a distinct increase of the gamma-globulin fractions by as much as 4 times) that occurred at the expense of a corresponding drop of other globulin fractions, whereas the amount of albumin remained nearly the same. The action on the pigeons of high and low temperature also led to a change in the proportion of the protein fractions in their blood, the nature of these changes with the birds subjected to heating being similar to the changes occurring in developing toxinfection, whereas with the pigeons undergoing cooling the quantity of gamma-globulins increased at the expense of the albumins (the A/G ratio being almost halved).