Since higher heterophils is an indication of stress response, the lower count of chickens fed
OligoPKE demonstrated that OligoPKE supplementation reduced stressors possibly including those from
bacterial and fungal infections. In agreement with this study, Brune et al. (1972) and Vleck et al. (2000) reported
that oligosaccharides supplementation reduced blood heterophils in stressed chickens and penguins, respectively.