Reetha, T. LurthuRajeswar, J. JohnsonDorairajan, N.TANUVAS2018-03-232018-03-232002-10http://krishikosh.egranth.ac.in/handle/1/5810042457TNV_CRN_2002_31(5&6)125-127The immune response after different vaccinations of Ranikhet disease was measured by ELISA and heamagglutination inhibition test ( HI) and the correlation between these two tests were studied. A positive correlation existed between ELISA titre and HI titre every level in all the vaccinated groups.enVeterinary ScienceArticle