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

Figure 3

The growth curve of recombinant viruses. DF1 cells were infected with viruses at 0.1 MOI and supernatants were harvested after 24 h, 48 h, 72 h, and 96 h for TCID₅₀ calculation. Values represent the means of three independent experiments.