The Effects of Commercial Diet Supplemented with Mannanoligosaccharide (MOS) and Vitamin B12 on the Growth and Body Composition of the Carp (Cyprinus carpio L. 1758)

Four hundred carp fries (Cyprinus carpio L. 1758) with average initial weight of 1.1 +/- 0.05 g and total average length of 4.04 +/- 0.04 cm, was fed for a period of 90 days with the addition of commercial feed Mannanoligosaccharide (MOS) and vitamin B-12. The carps were divided into four different groups and fed through different feeds (Control; group A with MOS, group B with vitamin B-12, group C with a the combination of MOS + vitamin B-12). The effects of feeding through MOS and vitamin B-12 in different proportions on the parameters such as growth in view of live weight and total length, survival rate, feed conversion, condition factor and protein efficacy for the carp fries was studied. The best growth in view of live weight was maintained through MOS and vitamin B-12 combination in group C (4.51 +/- 0.13 g), while the best growth in terms of length was obtained through MOS in group A (6.68 +/- 0.08 cm). As a consequence, the growth parameters of the carp fries fed through commercial feeds with the addition of MOS and vitamin B-12 in different doses under empirical conditions shown affirmative effects on the survival rate, feed assessment, condition factor and protein efficacy.