TY  - JOUR
T1  - Effects of Exogenous Enzyme Supplementation in Diets on Growth and Feed Utilization in African Catfish, <I>Clarias gariepinus</I>
AU - Bircan Yildirim, Yasemin AU - Turan, Funda 
JO  - Journal of Animal and Veterinary Advances
VL  - 9
IS  - 2
SP  - 327
EP  - 331
PY  - 2010
DA  - 2001/08/19
SN  - 1680-5593
DO  - javaa.2010.327.331
UR  - https://makhillpublications.co/view-article.php?doi=javaa.2010.327.331
KW  - African catfish
KW  -Clarias gariepinus
KW  -exogenous enzyme complex
KW  -growth performance
KW  -control group
AB  - The effects of various supplemental exogenous enzyme on the growth performance in African catfish <I>Clarias gariepinus</I> (initial mean weight 46.32&plusmn;0.29 g) were examined for 12 weeks feeding trial. A multi enzyme complex (containing fungal xylanase, &#946;-glucanase, pentosonase, &#946;-amilase, fungal &#946;-glucanase, hemicellulase, pectinase, cellulase, cellubiase), was included at the level of 0.0 (control group), 0.25, 0.5 and 0.75 g enzyme complex kg<SUP>-1</SUP> diet in four test diets. Each of the four experimental diets was randomly assigned to triplicate groups of fish and accidentally stocked into 100 L aquaria at a density of 10 fish per aquarium. After 90 days of rearing, the survival rate was ranged from 86.67-93.33% and there was no statistical difference between experimental and control groups. Growth rate significantly increased in fish fed with enzyme complex supplemented diets in comparison with the control groups (p&lt;0.001). Specific growth rate was ranged from 1.09&plusmn;0.03 (control group) to 1.23&plusmn;0.01 (0.75 g kg<SUP>-1</SUP> enzyme complex supplemented group). The best specific growth rate was observed at the group receiving 0.75 g kg<SUP>-1</SUP> enzyme complex group. Also, food conversion ratio, protein efficiency ratio and apparent net protein utilization were significantly higher in all enzyme complex groups than that with control (p&lt;0.01). The highest value of protein content (21.75%) was observed at 0.75 g kg<SUP>-1</SUP> enzyme complex group. The results suggested that enzyme supplementation can significantly improve growth performance and feed utilization in African catfish.
ER  -