Growth Performance, Blood Components, Immune Response, and Carcass Traits in Broiler Chickens Fed with Eucalyptus globulus

The research was conducted to determine the effect of various concentrations of Eucalyptus globulus leaves powder on growth performance, blood components, immune response, and carcass traits in one-day-old male (Hubbard) chickens. A total of 180-day-old broiler chicks were randomly divided into four groups i.e., R1, R2, R3, and R4. Group R1, as control, whereas groups R2, R3, and R4 were fed at the dose of 0.25, 0.50 and 0.75% of eucalyptus leaves powder/kg feed of broilers, respectively. The Results showed a sig-nificant (P 0.05) increased in body weight and maximum water consumption by treated groups. The high-est feed intake was consumed by control group. Feed conversion ratio was improved in all treated groups. Carcass weight and dressing percentage were improved significantly (P 0.05) in treated groups. Weights of edible and non-edible organs showed non-significant (P 0.05) differences among treated groups. White blood cells significantly (P 0.05) increased in treated groups. The values of red blood cells and hemoglobin were non-significant (P 0.05) in treated groups. Glucose levels significantly (P 0.05) increased in treated groups, whereas cholesterol levels were recorded to decreased as non-significant (P 0.05) among treated groups. Levels of serum glutamic-pyruvic transaminase (SGPT) recorded a significant (P 0.05) increased among all treated groups as compared to control group. Treated groups with Eucalyptus globulus powder were observed to improve the immunity against Newcastle disease and infections bronchitis in birds as compared to control group. It is concluded that Eucalyptus globulus 0.75%/kg in feed showed as a useful replacement for antibiotics and would improve growth performance, blood components, and immune response of broiler chickens.