Weeks Antigens cross vaccinated cross non vaccinated Zebu vaccinated zebu-non-vaccinated Week 3 PPDa 0.291 ± 0.035 0.276 ± 0.018 0.210 ± 0.027 0.294 ± 0.085   MPB83 0.215 ± 0.011 0.269 ± 0.035 0.259 ±0.038 0.225 ± 0.019 Week 5 PPDa 0.261 ± 0.025 0.269 ± 0.026 0.282 ± 0.047 0.254 ± 0.013   MPB83 0.263 ± 0.022 0.247 ± 0.015 0.265 ± 0.044 0.257 ± 0.002 Week 8 PPDa 0.206 ± 0.028 0.195 ± 0.030 0.107 ± 0.002 0.162 ± 0.010   MPB83 0.193 ± 0.005 0.227 ± 0.013 0.124 ± 0.005 0.159 ± 0.019 Week13 PPDa 0.145 ± 0.008 0.153 ± 0.011 0.131 ± 0.009 0.120 ± 0.013   MPB83 0.196 ± 0.014 0.202 ± 0.018 0.151 ± 0.019 0.148 ± 0.018 Week18 PPDa 0.298 ± 0.039 0.245 ± 0.022 0.227 ± 0.033 0.328 ± 0.037   MPB83 0.294 ± 0.028 0.252 ± 0.012 0.221 ± 0.007 0.201 ± 0.003 Week23 PPDa 0.812 ± 0. 303 0.417 ± 0.075 0.234 ± 0.023 0.277 ±0 .027   MPB83 0.494 ± 0.117 0.392 ± 0.062 0.232 ± 0.018 0.249 ± 0.015

Table 1: The Means immunoglobulin Responses to Bovine PPD and MPB83 in BCG Cross (vaccinated and Non vaccinated) and Zebu (vaccinated and Non vaccinated) calves.