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Volume 6 Issue 1
Jan.  2015
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Article Navigation >  Journal of Tropical Biology  > 2015  >  6(1): 18-24

KE Yangyong, LAI Qiuming, SU Shuye, LIN Zhiyu. Application of Lactic Acid Bacteria in Shrimp Farming[J]. Journal of Tropical Biology, 2015, 6(1): 18-24. doi: 10.15886/j.cnki.rdswxb.2015.01.003
Citation: KE Yangyong, LAI Qiuming, SU Shuye, LIN Zhiyu. Application of Lactic Acid Bacteria in Shrimp Farming[J]. Journal of Tropical Biology, 2015, 6(1): 18-24. doi: 10.15886/j.cnki.rdswxb.2015.01.003
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Application of Lactic Acid Bacteria in Shrimp Farming

doi: 10.15886/j.cnki.rdswxb.2015.01.003

  • College of Ocean, Hainan University, Haikou 570228, China

  • Received Date: 2014-04-17
  • A strain of lactic acid bacteria HN3 isolated from Litopenaeus vannamei digestive tract was used to conduct experiments to observe its antagonistic effect on two pathogenic vibrio species: Vibrio harveyi and Vibrio parahaemolyticus and its aquacultural effect on the growth of L. vannamei. The antagonism experiment showed that both the lactic acid bacteria HN3 and its extracellular fluid showed significantly different inhibitory effects against the growth of V. harveyi and V. parahaemolyticus. The aquaculture experiment showed that the daily gain rate（ DGR）,survival rate（ SR） and specific growth rate（ SGR） of the shrimps fed the diet containing probiotic HN3 were significantly higher than those of the control（ P ＜ 0. 05）. Similarly,significantly higher population density of the lactic acid bacteria and total bacteria were noted in the shrimp digestive tract and culture water compared to the control,but the number of Vibrio bacteria was reduced greatly（ P ＜ 0. 05）. The diet supplemented with 4 × 106—5 × 106cfu·g-1 probiotic HN3 was the best to farm the shrimps,and the probiotic HN3 promoted the growth and improved the survival rate of the shrimps,which indicates that HN3 is adapted to the digestive tract environment,inhibits the growth of V. harveyi and V. parahaemolyticus and plays an important role in improving the composition of flora in the farming environment.
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Application of Lactic Acid Bacteria in Shrimp Farming

doi: 10.15886/j.cnki.rdswxb.2015.01.003
  • College of Ocean, Hainan University, Haikou 570228, China
  • Received Date: 2014-04-17

Abstract: A strain of lactic acid bacteria HN3 isolated from Litopenaeus vannamei digestive tract was used to conduct experiments to observe its antagonistic effect on two pathogenic vibrio species: Vibrio harveyi and Vibrio parahaemolyticus and its aquacultural effect on the growth of L. vannamei. The antagonism experiment showed that both the lactic acid bacteria HN3 and its extracellular fluid showed significantly different inhibitory effects against the growth of V. harveyi and V. parahaemolyticus. The aquaculture experiment showed that the daily gain rate（ DGR）,survival rate（ SR） and specific growth rate（ SGR） of the shrimps fed the diet containing probiotic HN3 were significantly higher than those of the control（ P ＜ 0. 05）. Similarly,significantly higher population density of the lactic acid bacteria and total bacteria were noted in the shrimp digestive tract and culture water compared to the control,but the number of Vibrio bacteria was reduced greatly（ P ＜ 0. 05）. The diet supplemented with 4 × 106—5 × 106cfu·g-1 probiotic HN3 was the best to farm the shrimps,and the probiotic HN3 promoted the growth and improved the survival rate of the shrimps,which indicates that HN3 is adapted to the digestive tract environment,inhibits the growth of V. harveyi and V. parahaemolyticus and plays an important role in improving the composition of flora in the farming environment.

KE Yangyong, LAI Qiuming, SU Shuye, LIN Zhiyu. Application of Lactic Acid Bacteria in Shrimp Farming[J]. Journal of Tropical Biology, 2015, 6(1): 18-24. doi: 10.15886/j.cnki.rdswxb.2015.01.003
Citation: KE Yangyong, LAI Qiuming, SU Shuye, LIN Zhiyu. Application of Lactic Acid Bacteria in Shrimp Farming[J]. Journal of Tropical Biology, 2015, 6(1): 18-24. doi: 10.15886/j.cnki.rdswxb.2015.01.003
shu

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