Twenty five New Zealand White (NZW) rabbit bucks, (aged 9 months and weighed 3.28± 0.1kg) were divided randomly into five comparable groups (5 each).Rabbits in the 1st group were fed pelleted control dietwithout medicinal plants (CO), while those in the 2nd, 3rd, 4th and 5th groups were fed the pelleted diet containing 3% rosemary (RS), 3% marjoram (MR), 1.5% ginger root (ZR) and 2.5% mixture (MX) of these medicinal plants, respectively. Results showed that rabbit bucks of the ZR group had

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... (P<0.05) blood glucose level compared with the control, but did not differ significantly from the other treatments. Serum total protein increased (P<0.05) in RS, MR and MX when compared with control group, but ZR did not differ significantly from the control. Mean concentrations of serum albumin (AL) and AL/GL ratio did not differ significantly due to treatments. Rabbit fed diets containing rosemary, marjoram, ginger or their mixture showed lower (P<0.05) concentrations of plasma triglycerides than those fed the control diet. Rabbit fed ZR and MX had the lowest (P<0.05) level of cholesterol concentration, compared with for CO, RS and MR groups. Serum testosterone levels were significantly (P≤0.05) higher in rabbit bucks of ZR and MX groups compared with CO, RS and MR, respectively.Semen Ejaculate volume was significantly higher in MR, ZR and MX groups compared with the control but RS group did not differ significantly from the control. Means of mass motility were higher (P≤0.05) in treatment groups of RS, ZR and MX than the control but MR group did not differ from the control. The effect of dietary treatment on sperm cell concentration was significant. The ZR group had the highest mean followed by MX, RS, CO and MR groups. The histological examination