Effects of live feeds and compounded diet on growth parameters of brown trout fry (Salmo trutta abanticus T. 1954) in the context of habitat restoration

Abstract

Three diets were tested to feed triplicate groups of Salmo trutta abanticus fry with initial average body weight of 0.091 g in fiberglass tank. Two diets consisted of live guppy fry (Lebistes sp.), tubifex (Tubifex tubifex) and third diet was compound diet made up from commercial trout feed. At the end of 12 week of feeding, the best results for average daily growth, specific growth rate, feed conversion ratio, protein efficiency ratio, daily growth index, feed efficiency, plasma total protein, weight increase, mean weight gain and survival rate were observed for the group fed with guppy fry (P<0.05) whereas the poorest results were obtained for the group fed with compound diet. © Ankara Üniversitesi Ziraat Fakültesi.