Jeopardize induced by use of carotenoides in small scale trout farms in the Ohrid Lake Catchment (Albania)

Abstract

Due to chemical features additional fish food ingredients and particularly carotenoids are considered able to protect against oxidative stress, while are also were investigated in terms of disease prevention and treatment. The color of Ohrid Lake trout (Salmo letnica) and Ohrid belvica (Salmo ohridanus) is one of their most important quality criteria. In their natural ecosystems this is naturally induced particularity due to their food diet i.e., copepod calanoid (Eudiaptomus gracilis). The application of carotenoides as a nutrient impute to the feeding system of rainbow trout (Oncorhynchus mykiss) has other side of authenticity associated within fish marketing at the small-scale farms.