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ELISA test for ALVs antigen and ALV-J antibody in the parental line chickens
| Age (Weeks) | ♀ (positive rates) | ♂ (positive rates) | Status for p27 shedding and ALV-J antibody (♀ + ♂) | ||
|---|---|---|---|---|---|
| p27 | ALV-J Ab | p27 | ALV-J Ab | ||
| 5 | 5/20 | 0/20 | 2/8 | 0/8 | S + A- (25%) |
| 12 | 1/20 | 0/20 | 0/8 | 0/8 | S + A- (3.5%) |
| 36 | 6/20 | 4/20 | 0/8 | 0/8 | S + A- (21%), S-A + (14%) |
| 60 | 1/21 | 8/21 | 2/8 | 1/8 | S + A- (10%), S-A + (31%) |
The letter “S” indicated p27 shedding; “A” indicated antibodies of ALV-J
