Effect of feeding Lactobacillus-based probiotics on the gut microflora, growth and survival of postlarvae of Macrobrachium rosenbergii (de Man)

By Himabindu K Venkat, N. P. Sahu, K. K. Jain. 2004

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The present study was conducted to study probiotics treatment in the post-larval diet of Macrobrachium rosenbergii. Three hundred postlarvae (average weight, 114^118 mg � 0.11) were divided in ¢ve experimental groups each with four replicates. The experiment was conducted for 60 days. Experimental diets were identical in all the aspects except for variation in the probiotics strain. T1 and T2 groups were fed Lactobacillus acidophilus (140 � 10 11 CFU 100 g � 1 )a ndL. sporogenes (24 � 10 7 CFU 100 g � 1 ) respectively. The T3 group was fed L. sporogenes bioencapsulated in Artemia nauplii. T4 was the control group (without probiotic) whereas T5 was fed Artemia along with control diet. The bacteriological study indicated that the gut micro£ora of postlarvae are devoid of lactic acid bacteria. The probiotic strains were found to have inhibitory eiects against the gram-negative bacterial £ora present in the gut. Growth of the probiotic fed groups was signi¢cantly higher (Po0.05) than the control group. Signi¢cantly higher growth (Po0.05), per cent weight gain (132.5%), speci¢c growth rate (1.41%), feed e⁄ciency ratio (FER) (0.45), protein e⁄ciency ratio (1.29) and protein gain (161.6%) were recorded in T3 group fed Artemia bioencapsulated L. sporogenes over the control group (Po0.05). Although insigni¢cant (P40.05), growth-promoting eiects of L. sporogenes were found to be higher than L. acidophillus. Survival of the postlarvae was not aiected by probiotics in the diet.

Subfields: Aquatic Science, Food Science, Molecular Biology

View Paper: https://www.semanticscholar.org/paper/61a1757c7899bab642da8a883e0b98b74aafbdf3

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In Aquatic Science

  1. Vikash Kumar
  2. D. K. Meena
  3. Uttam Kumar Sarkar
  4. Suvra Roy
  5. S. Nayak

In Molecular Biology

  1. J. Nicolas

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