Fig. 1
From: The coinfection of ALVs causes severe pathogenicity in Three-Yellow chickens
Influences of ALV infection on body weight (a), spleen relative weight (b), bursa relative weight (c) and thymus relative weight (d) in Three-Yellow chickens at 1, 3, 5, 8, 11 and 15 wpi. Five birds were randomly picked from each group to be weighed. The mean weight, which are followed by different lower-case letters, was significantly different (P < 0.05) based on Duncan’s multiple range test (X ± SE). e ALV-positive identification by ALV P27 antigen ELISA; an S/P value greater than or equal to 0.2 was regarded as positive