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Diseases of Aquatic Organisms

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DAO 55:169-173 (2003)  -  doi:10.3354/dao055169

Enhanced growth and resistance to Vibrio challenge in pond-reared black tiger shrimp Penaeus monodon fed a Bacillus probiotic

Sirirat Rengpipat1,*, Aroon Tunyanun1, Arlo W. Fast4, Somkiat Piyatiratitivorakul2, Piamsak Menasveta2,3

1Department of Microbiology,
2Department of Marine Science, and
3NC GEB Marine Biotechnology Research Unit, Faculty of Science, Chulalongkorn University, Bangkok 10330, Thailand
4Hawaii Institute of Marine Biology, University of Hawaii, PO Box 1346, Kaneohe, Hawaii 96744, USA

ABSTRACT: The bacterial probiont Bacillus S11 (BS11) was used as a supplement in feed (PF) for black tiger shrimp Penaeus monodon in 2 earthen pond field-trials carried out for 100 d during 2 different seasons in Thailand. Growth and survival were compared with those of shrimp receiving an unsupplemented feed (UF). In the hot and cool seasons, respectively, shrimp fed PF grew significantly larger and had significantly higher survival than shrimp fed UF (p < 0.05). Projected yields on an annual basis (two 100 d crops) were 49% greater with PF-fed shrimp. In 8 d challenge tests using the luminescent bacterium Vibrio harveyi 1526, shrimp fed UF all died within 6 d while survival for shrimp fed PF was 5 and 9%.

KEY WORDS: Marine shrimp culture · Black tiger shrimp · Pond culture · Penaeus monodon · Probiotic · Bacillus S11

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