Effects of diets supplemented with garlic organic extract and streptomycin sulphate on serum biochemical and hematological parameters of broiler chickens

Abstract

An experiment was carried out to study the effects of diets supplemented with garlic organic extract and streptomycin sulphate on serum biochemical and hematological parameters in broilers. Forty eight Hubbard day-old chicks with an equal number of males and females were arranged in a 4x2 factorial experiment having four (4) diets and two sex (male, female) in a completely randomised design. They were randomly allocated to eight treatment combinations in which garlic organic extract (GOE) and streptomycin sulphate (SS) were supplemented to the basal diet by oral intubation in the following doses: Control (Water), GOE 40 and 60 mg/kg/day, Streptomycin sulphate 30mg/kg/day. Treatments effect on the concentrations of hematological parameters studied indicated no significant differences (P>0.05) either among the main blood constituents which are the white blood cells, red blood cells and the platelets or the erythrocyte indices. The same treatments on the contrary significantly affected (P<0.001) the concentrations of all the biochemical parameters studied. Sexwise, there were no significant differences (P>0.05) in the haematological and biochemical parameters studied, except for serum total protein concentration that was higher (P<0.01) in females than the male birds while the reverse was reported for blood glucose level (P<0.05) and the platelets (P<0.01). Diet and sex interaction significantly affected (P<0.05) the concentrations of almost all the hematological parameters studied except for the red blood cells (RBC) and the mean corpuscular hemoglobin (MCH) indicating that the two factors had a synergistic effect on the broilers’ health maintenance. In like manner, diet and sex interaction equally affected the concentrations of biochemical parameters namely the glucose, cholesterol, protein (P<0.01) and significantly improved the pancreatic α-amylase activity (P<0.05). In summary, diets fortified with garlic organic extract even at 40 ppm improved biochemical activities in broilers for better performance.