TY  - JOUR
T1  - Effects of Dietary Energy Level on Growth and Behaviours of African 
Catfish, Clarias gariepinus, Under Experimental Conditions
AU - , Erdal Yilmaz AU - , Ahmet Sahin AU - , Ihsan Akyurt AU - , Metin Duru 
JO  - Journal of Animal and Veterinary Advances
VL  - 4
IS  - 1
SP  - 130
EP  - 134
PY  - 2005
DA  - 2001/08/19
SN  - 1680-5593
DO  - javaa.2005.130.134
UR  - https://makhillpublications.co/view-article.php?doi=javaa.2005.130.134
KW  - 
AB  - In this study, the effects of five different energetic diets (10.85, 11.82, 12.73, 13.69, and 15.06 MJ DE kg-1 in order) with same protein content (350 g CP per kg diet) on growth and behaviours of the African catfish, Clarias gariepinus, were investigated. Diets were offered to fishes two times a day as two meals one was at 09:00 and the another one was at 17:00 for 90 days. Behavioural observations were recorded twice a week for a period of 1 h during four successive observations (at between 08:00-09:00, 10:00-11:00, 16:00-17:00, and 18:00-19:00 h) at 10 minutes intervals. Fish consuming the lowest (10.85 MJ DE kg-1) and intermediate energy (12.73 MJ DE kg-1) showed the similar weight gain, but the intermediate energy group provided the best feed and protein efficiency, when compared to others (P<0.05). The dietary energy level affected swimming, resting, grouping and foraging behaviours of African catfish fingerlings during the experimental period (P<0.01) without affecting attention to the servicer. To conclude; when energy content of the diet increased, the feed intake was affected negatively with consequent reduction in growth performance of African catfish, Clarias gariepinus.
ER  -