TABLE 2.

Bacterial growth inhibition by serum from RASV- or rPlcC-immunized chickensa

Exptl group (source of serum)CFU/ml at start of cultureCFU/ml after 12 h of culture
Culture with no serum2 × 1022.0 × 108
RAS control [χ8914(pYA3493)]2 × 1021.6 × 108
RASV-1 [χ8914(pYA3977)]2 × 1027.8 × 105
RASV-2 [χ8914(pYA4110)]2 × 1023.0 × 106
RASV-3 [χ8914(pYA4149)]2 × 1028.0 × 105
rPlcC s.c. injection2 × 1025.2 × 106
  • a Sera collected at 3 weeks after boost immunization were decomplemented, pooled, and inoculated into C. perfringens cultures containing 2 × 102 CFU at a final serum/culture dilution of 1:20.