b1-anti-b2 and b2-anti-b1 allo-antisera were raised by i.v . immunization of homozygous b1/1 and b2/2 chickens , respectively , with b1/2 cells of the following sources : peripheral blood leucocytes ( pbl ) , erythrocytes , thymus cells and bursa cells .
C0229664
peripheral blood
C0023516
leucocytes