Another important by-product from tilapia farming is collagen collected from the inside of the fish skins; European countries moved away from the collagen from mammals due to fears of mad cow disease, according to a 2008 report by the University of Arizona.
Lenye intfo lemcoka yetintfo-letakhiwako nge tilapia yekufuywa ngemaprotein latsetfwe kulingekhatsi lwesikhumba semfishi; emave ase Europe asuka kumaprotein lasuka etilwaneni ngenca yekwesaba sifo setinkhomo letihlanyako, ngekuya kwalokwabhalwa ngemnyaka wa 2008 yiNyuvesi yase Arizona.