![]() |
|
|
Disease and Environmental Stress Laboratories, RutgersThe State University, New Brunswick, New Jersey
Newcastle disease virus (NDV) involvement, in the immature White Leghorn cockerel, resulted in a greater growth depression when complete rations rather than those imbalanced by deficiencies of lysine were supplied.
Trypsin or amylase supplementation of a low-lysine diet resulted in increased growth of NDV-infected chicks. This phenomenon was observed, however, only when the experimental rations were deficient in lysine.