Beyondcollagen, tilapia produce marine antimicrobial peptides(MAPs) as part of their immune system, such as piscidin, defensin,hepcidin, cathelicidin, and histone, which have antimicrobial effectsand are essential for keeping the wound area free from infection. Piscidins are a family of cationic antimicrobialpeptides expressed by fish mast cells, consisting of structurallyrelated mature amphipathic α-helical structure peptides of 21to 44 residues. Here, HAMP is linked to infection.