Effect of Supplementation of Withania somnifera L. Roots on Some Blood Physiological Parameters of Japanese Quail Hens Reared Under High Environmental Temperature

Abstract

An experiment was conducted to assess the antistress efficacy of Withania somnifera roots ethanolic on some blood physiological traits of Japanese quail hens reared under high environmental temperature (27-37-27ºC).
Three hundred Japanese quail hens of six weeks old were randomly distributed into five treatments T0 untreated group (control), T1, T2 quails supplemented orally with 50, 100 mg/kg/day root ethanolic extract(WSRE) respectively,T3, T4 received 1,2 g/kg diet root
powder(WSRP) respectively.
Results revealed significant increase in Hb and PCV % in quails supplemented with T4 at 10 and 15weeks of age, and in T3 and T4 groups at 12 weeks of age in comparison with T0 and WSRE groups. At 10 and 15 weeks old, T2 resulted in significant increasing in Heterophil/Lymphocyte ratio in comparison withT0and other treatments. At 15 weeks of age,T1and T2 significantly increased Heterophil% in comparison with T0 and WSRP groups, while, quails in T4 showed significant reduction in Heterophil% and significant increasing in Lymphocyte% compared with T1, also results showed that supplementing quails with T4
significantly increased serum iron .Thyroid hormones didn’t affected significantly due to treatments while T3 significantly increased TSH.