Effect of feeding probiotic (Lactobacillus cremoris) on growth and survival of Macrobrachium rosenbergii post larvae

To study the viability of probiotic (Lactobacillus cremoris) and optimum concentration in the diet, its impact On growth and survival of Macrobrachium rosenbergii post larvae (PL), three hundred PL (140-170 mg) were equally divided in five experimental groups having four replicates each. Five experimental diets prepared by adding different concentrations of L. cremoris (T1, 2.8 x 10(11) cfu/100g; T2, 5.7 x 10(11) cfu/ 100g; T3, 8.5 x 10(11) cfu/100g; T4, 11.4 x 10(11) cfu/100g; T5, control) with Similar all other ingredients were fed for 60 days. Although insignificant (P > 0.05) but growth promoting effect was elucidated at a minimum concentration of 8.5 x 10(11) cfu/100g (L. cremoris) diet: But maximum concentration Of inclusion remained inconclusive and needs further investigation. Maximum viability of L. cremoris in the pelleted diet was found to be 18 days at 4 C. Survival was not affected due to feeding Of L. cremoris in the diet of Macrobrachium rosenbergii PL.