Comparative evaluation on some available Newcastle disease vaccines in Nigeria

Abstract

Newcastle disease vaccines from three different countries were compared in terms of the level of protection conferred on domestic chickens against Newcastle disease (ND) following routine vaccinations. One hundred and fifty day old chicks were acquired and divided into three groups, with each group of fifty chickens vaccinated with a type of ND vaccine from a particular country. Haemagglutination Inhibition titres revealed that the locally produced vaccines gave superior antibody protection against ND than the other two foreign vaccines. The need to improve on the production rate and use of locally manufactured vaccines is stressed. Keywords : Newcastle, chickens, haemagglutination inhibition test, vaccines Tropical Veterinarian Vol. 22(3&4) 2004: 102-105