Mutasem Haddad MH

IntroductionMaternal immunity for Newcastle Disease (ND) can be quantified with Haemagglutination Inhibition(HI) test. Titres are expressed as log 2 values. Titres in a group are analysed statistically and mean titre in a group depicts status of flock immunity. Quantification of HI titre at day old age and subsequent quantification at weekly interval can determine the maternal antibody interferenc ...