Therapeutic value of bovine saliva in wound healing: a histomorphological study.

Biopsies were collected from the control (normal saline solution treated) and saliva treated wounds (back and loin region) of calves on 3rd, 7th, 14th, 21st and 28th days post-wounding. A faster connective tissue and epidermal regeneration was observed in saliva treated group. The inflammatory response was subdued as early as on 3rd day. On the 14th day the test wounds were covered with a dense layer of fibroblast and collagen and epidermal growth started. On 21st day the condensation of collagen and vascularization of the scar tissue was further augmented. By 28th day, the wounds were completely filled and nearly 85% of the wound surface was covered with epidermis.