resistance by microorganisms, the expression of Major Histocompatibility Complex (MHC)
class II gene in three commercial strains of broiler chickens administered varying levels of
ginger extract was investigated. Ninety each of Arbor acres Plus, Cobb 500 and Ross 308
were used in the experiment. The birds were randomly divided into three treatment groups,
on breed basis, of 30 birds, designated as T1, T2, and T3. Each treatment per breed were …