STUDIES ON PHYSIOLOGICAL AND IMMUNOLOGICAL TRAITS IN QUAIL

Abstract

This study was carried out at the Quail Research Unit, •• Agricultural Production Technology Center, Faculty of Agriculture, Cairo

University, Giza, Egypt.

It was aimed to evaluate the effect of Biovet- YC, Bioyeast and OSY with Vit E as feed additives on productive performance, immune and physiological responses in Japanese quail (Coturnix coturnix japonica). A total number of 600, one- wk old Japanese quail chicks were used in this study. Birds were selected randomly from the foundation flock. At two wks of age, birds were transferred to the growing batteries. Birds were divided into three groups of 180 chicks each. Chicks of the first, second and third groups were fed basal diet supplemented with either Biovet - YC, Bioyeast and OSY with vit E as feed additives, respectively. Chicks of each group were subdivided into three subgroups each of 60 chicks in two replicated each receiving 250,500 and 1000 g/ton of both Biovet-YC and Bioyeast, while the third subgroups receiving 100,200 and 300g/ton OSY with vit E, respectively. The tenth group was fed basal diet only and consider as control group.