EFFECT OF Linum usitatissimum AND Sesamum indicum EXTRACT AS GROWTH PROMOTORS IN DIETS OF FINGRLINGS OF Ctenpharyngodon idella
A 90-day feeding trial ( 09-06-2014 to 09-09-2014 ) was designed to investigate the effects of dietary supplementation of Linum usitatissimum seed extract and Sesamum indicum seed extract on hematological traits and growth of fingerlings Labeo rohita. Fish were housed in cemented rectangular tanks. There were three treatments and a control group. Control diet contained 32% protein and was composed of conventional ingredients. 1 % of the total ingredients were replaced with extract of Linum usitatissimum seed extract in treatment 1 and 2% of the total ingredients were replaced with extract of Sesamum indicum seed extract in treatment 2 respectively. Where treatment 3 composed of 96% of control diet + 2% Linum usitatissimum seed extract + 2% Sesamum indicum seed extract. Feed was offered to fish @ 2% of its body weight. Initial and final weight of Labeo rohita fingerlings was 7.33g, 15.98gm in control, 7.14 gm, 17.38 gm in T1, 7.27 gm, 16.49gm in T2 and 7.30 gm, 16.86 gm in T3 respectively. All treatments showed better growth than control but treatment composed of linseed oil in diet showed significantly higher growth. Hematological studies showed increased levels of Hemoglobin, Platelets, TLC, RBCs, HCT, WBCs, and MCH in treatments while the level of Lymphocytes & MCV decreased as compared to control diet. Fish were housed in cemented rectangular tanks with stocking density of 126.05mg/liter, meaning 31-33 liters of per fish. Fish fed diet with 2% linseed extract in feed showed highest weight gain (10.24g) best F.C.R (1.28) and good hematological results suggested that Linum usitatissimum seed extract is better option to include in future feed formulations for Labeo rohita for maximum performance and minimum feed wastage.