This study aims to determine the bone histomorphometric parameters in broilers supplemented with boron from different sources and in different concentrations. Experimental work involved the preparation of fixed histological samples of tibial tissue from sampled broiler chickens in five experimental treatment groups: the feed concentrate (FC) of the control group (1) was not boron supplemented; group 2 were received 20 mg B/kg FC in the form of boric acid; group 3–20 mg B/kg FC as phosphate glass; group 4–10 mg B/kg FC in the form of calcium fructoborate; group 5–10 mg B/kg FC as phosphate glass. Histomorphometric parameters evaluated were bone trabeculae width (μ), bone trabeculae perimeter (μ /mm2) and area of bone trabeculae (μ2/mm2). The results indicate an increase in the average values of the three parameters in the experimental groups compared to the control, and at the same time, the higher the average value individuals in groups 3 and 4 where the feed concentrate was supplemented with 20 mg B/kg FC as phosphate glass, respectively 10 mg B/kg FC by calcium fructoborate.