TABLE 3.

Intestinal lesion scores of birds immunized with three injections intramuscularly and then infected with a mild challenge with C. perfringens

ProteinNo. of chickensNo. of chickens with the following lesion scores:Mean no. of chickens
01+2+3+4+5+
Vehicle-only controls101341101.55
Culture supernatanta108110000.4
Alpha-toxoid123431101.41
HPa1210200000.16
GPDa107210000.4
tPFORa104510000.7
FBAa104600000.6
  • a Immunized groups that had significantly fewer chickens with lesions than the unimmunized vehicle-only control group (Fisher's exact test, P ≤ 0.05).