Role of Collagen in Wound Healing of Fishes

The term 'wound' refers to the break in the continuity of tissue, it can be a varying degree of loss of substance caused by either physical, chemical, microbial, or immunological damage to tissue [8].In aquaculture, fish are subject to injury from a variety of sources, like viral and bacterial pathogens causing internal hemorrhages, parasites, and predators that disrupt the mucosal surfaces by conspecific biting, abrasion against raceways, or contusions, from sorting procedures [13].These wounds lead to poor welfare on the part of the fish and lead to downgrading fillet quality mostly due to poor visual appeal to the consumer.Wound healing is a physiological process of repairing proceeding injury to the skin and other soft tissues in humans and other animals.It is a complex cellular event which includes resurfacing, reconstruction and restoration of the tensile strength of the injured tissue.For fishes the epidermis protects from osmotic shock and entry of pathogens from the aquatic environment, any injury to it should be corrected rapidly to prevent further damage thus, re-epithelialization is fast in these water inhabitants.