LaSota vaccination may not protect against the lesions of velogenic newcastle disease in chickens

Abstract

Two groups of six weeks old cockerels comprising 40 immunized and 40 non-immunized birds were inoculated intramuscularly with VGF-1, which is a local Nigerian strain of velogenic Newcastle disease virus (VNDV). Immunized birds did not show any clinical signs except significant loss (p < 0.05) in body weight on days 5 and 20 post inoculation (PI). But the… (More)
DOI: 10.1007/s11250-008-9210-x

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