Effect of Earth Apple Helianthus tuberosus and Germinated Barley Hordeum Vulgare as a Source of Prebiotic on Growth Performance of Common Carp Cyprinus carpio L.

Abstract

The recent study was conducted in Fish lab./ College of Agricultural Sciences/ University of Sulaimani during the period 18/6/2016 till 27/8/ 2016 to study the effect of adding germinated barley GB (Importer) and Jerusalem artichoche JA (Helianthus tuberosus) powder in different levels (2.5, 5, and 7.5 gm/kg diet) in common carp fingerlings diets that contain 30% crude protein, with the control to make seven treatments: control treatment without any additives; adding 7.5 gm of earth apple powder; third treatment adding of 5 gm of earth apple powder; adding 2.5 gm of earth apple powder; adding 7.5 gm of hydroponic germinated barley; the sixth treatment with adding 5 gm of hydroponic germinated barley and 2.5 gm of hydroponic germinated barley. To study each of weight gain, daily growth rate, specific and relative growth rate, food conversion ratio, diet and protein efficiency ratio. The results indicated that the significant increased (P<0.05) T4 7.5g/kg JA in total weight gain, daily weight gain, relative growth rate and specific growth rate. The significant differences (P<0.05) T7 7.5 g/kg GB showed elevated in feed conversion ratio, feed efficiency ratio, protein efficiency ratio.