Two experiments were designed on buck and doe rabbits. In the 1 st experiment, a total of 25 NZW rabbits bucks (9 months of age with a mean live body weight of 3400±173 g) were allotted into 5 treatments to study the effect of citric, lactic acids and propylene glycol on nutrients digestibility coefficients, blood picture, sexual urge, physical semen and spermatozoa characteristics, feed intake and live body weight changes. In the 2 nd experiment, a total of 40 nulliparous does (8 months of age

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... with an average live body weight of 3100±188 g) were allotted into 5 treatments. Does were inseminated with semen from untreated bucks. Does performance including:-blood picture, litter size and weight at birth and at weaning, milk yield, feed intake and body gain were studied. First group in both experiments received plain water and severed as a control group, while water for the 2 nd ,3 rd ,4 th and 5 th groups for the two experiments supplemented with citric, lactic acids (Concentration of citric and lactic acid 98%) or propylene glycol (2% propylene glycol, as an energy source) at 0.5 ml/liter drinking water and mixture of them with 0.75 ml/liter at 0.25 ml, each, respectively. Results of the first experiments indicates significant improvements in buck's nutrients digestibility of DM, OM, CP and NFE with the mixture of citric, lactic acid and propylene glycol followed by citric acid group compared to other groups. There was no significant treatment effect on CF and EE digestibility coefficient. Hematocrit, red blood cells' counts and white blood cells counts increased significantly in all treated groups compared to control while hemoglobin values, increased significantly in all treated group (except lactic acid group) than control. Total protein, globulin, triiodothyronine and testosterone, were significantly increased