TARIM BILIMLERI DERGISI-JOURNAL OF AGRICULTURAL SCIENCES, cilt.14, sa.3, ss.251-258, 2008 (SCI-Expanded)
This research was conducted in Sakaryabasi Fish Culture and Research Station. Tilapia (Oreochromis niloticus L.) were stocked into fiberglass tank at 5, 10, 25 kg stock density per cubic metre. During 112 days fishes were fed at the rates of 4 % body weight with trout fish. It was found that live weight of tilapia were as 15,963 g, 19,142 g, 23,305 g and condition factors were as 1,67, 1,68, 1,81 according to the fiberglass tank which were arranged at the different stocking density. The daily weight gain and spesific growth rate were estimated as follows; 8,2, 9,4, 12,8, and 0,615, 0,604, 0,712 respectively. The differences between daily weight gain and spesific growth rate were not statistically significant (p>0,05). The best feed conversion ratio was found in the III. group with 1,830. The differences between feed conversion ratio were not statistically significant (p>0,05). Protein efficiency ratio and feed conversion ratio were found similar. The highest mortality rate was found in the III. Group with 15,112 % and the lowest in the II. Group with 1,813