تأثير المعزز الحيوي المحلي (Iraqi Probiotic)‎ على نمو صغار أسماك الكارب الشائع Cyprinus carpio L.

الملخص EN

A local probiotic (Iraqi Probiotic) were used in the diets of young common carp Cyprinus carpio (average weight 28.70 ± 0.59 g ) at different inclusions (0 , 2, 4 and 6 ‰) in a laboratory experiment to study its effect on growth.

The results showed that weight increase , relative and specific growth rate was higher in the diet containing 2 ‰ while diets containing 4 and 6 ‰ did not show comparable increase and its values approach to the control diet (0 ‰).

It was also found that the feed conversion ratio was efficient in the same diet , which amounted to 3.25 while it achieved 4 or more in the other diets .

It was conclude from the current study that the use of probiotic by 2‰ improved growth, weight gain and feed conversion ratio for the young of common carp.

The result indicate that chemical composition of fish did not differ significantly (P>0.05) between treatments with minor increase in body protein with the addition of 2 ‰ probiotic.