Antibody response in partridge (Perdix perdix L.) 1. Effect of sex and age on the immune response to sheep red blood cells (SRBC), newcastle disease virus (NDV) and Brucella abortus (Buck 19)

摘要: To ascertain the immune response capacity of Partridges to classical experimental and natural antigens, dose time curves sheep red blood cells (SRBC), Newcastle disease virus (NDV) Brucella abortus (Buck 19 strain), were determined in two strains reared different farms. 1 ml 20% SRBC, 109 NDV particles 107 Buck microorganisms, gave optimal antibody responses seven (SRBC 19) or fourteen days after immunization. As far as SRBC is concerned, was sex independent, but declined markedly partridges older than year. The immunization schedule used by us allow identification high low responder animals. In fact, highly significant correlation individual between titers obtained successive immunizations an given three weeks apart, found. This together with observed great variability antigens considered, should a selection for lines, order improve fitness toward environmental pathogens.