Citation | Bakhtiar, A., S.A. Mehmood, A.R. Bhatti, S. Ahmad, N. Khalid, J. Iqbal, A. Nadeem and W. Ahmad. 2022. Comparative efficacy of newcastle disease’s live vaccines in broilers using hemagglutination inhibition (HI) test at Jaba Mansehra. Pakistan Journal of Agricultural Research, 35(4): 629-636. DOI | https://dx.doi.org/10.17582/journal.pjar/2022/35.4.629.636