Development and Evaluation of the Biological Adjuvant Bivalent Vaccine for Preventing Newcastle Disease and Infectious Bursal Disease

Figure 13

Proliferation of splenocytes. Splenocytes were stimulated with VP2 protein, IBDV-B87, or rClone30 virus in all groups. Con A was used as positive control, and 1640 medium alone was used as negative control. The cell proliferation was measured by CCK-8 assay. Data were analyzed and expressed as mean ± SD, ^##P < 0.01 vs rClone30-VP2L-treated chickens and expressed as mean ± SD, ^∗∗P < 0.01 vs rClone30-treated chickens.