Effect of Dietary Supplementation of Bacillus spp. on Growth Performance, and Resistance of Pacific White Shrimp (Litopenaeus vannamei) to Acute Hepatopancreatic Necrosis Disease

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dc.contributor.author Chorong, L.
dc.contributor.author Jee, E.H.
dc.contributor.author Ji, E.K.
dc.contributor.author Sung, H.K.
dc.contributor.author Jae, W.K.
dc.contributor.author Jong, S.E.
dc.contributor.author Kyeong-Jun, L.
dc.date.accessioned 2019-05-22T20:40:37Z
dc.date.available 2019-05-22T20:40:37Z
dc.date.issued 2019
dc.description.abstract This study was conducted to investigate effect of dietary supplementation of three Bacillus spp. on disease resistance of L. vannamei against Vibrio parahaemolyticus, a main causative pathogen for acute hepatopancreatic necrosis disease (AHPND), and growth performance and feed efficiency. Four diets were prepared by supplementing powder forms of Bacillus spp. (1 × 1010 CFU/g) with a combination at 0.2% (BS, B. subtilis only), 0.4% (BS/BP, a mixture of B. subtilis and B. pumilus), and 0.6% (BS/BP/BL, a mixture of B. subtilis, B. pumilus and B. licheniformis) into a control diet (no supplement). Quadruplicate groups of shrimp (average body weight, 0.51 g) per each diet were hand-fed the diets for 33 days. Shrimp fed the BS diet had significantly higher growth performance than those fed the control diet or other diets (BS/BP and BS/BP/BL) (P<0.05). After the feeding trial, the shrimp were challenged with V. parahaemolyticus through an immersion method at a concentration of 2 × 105 CFU/ml water for 193 h. The shrimp groups fed the Bacillus supplemented diets showed significantly increased (P<0.05) cumulative survival rates compared to the control diet group. At the last sampling (193h), AHPND toxin was not detected in shrimp fed BS diet while no hepatopancreas was sampled due to 100% mortality in the control group. The findings indicate that growth performance and disease resistance of L. vannamei against AHPND could be improved when shrimp are fed the tested Bacillus spp.
dc.format.extent 10 pages
dc.identifier.issn 0792-156X
dc.identifier.uri http://hdl.handle.net/10524/61067
dc.publisher The Israeli Journal of Aquaculture - Bamidgeh
dc.subject Litopenaeus vannamei
dc.subject probiotic
dc.subject Bacillus spp.
dc.subject disease resistance
dc.subject acute hepatopancreatic necrosis disease
dc.subject histopathology
dc.title Effect of Dietary Supplementation of Bacillus spp. on Growth Performance, and Resistance of Pacific White Shrimp (Litopenaeus vannamei) to Acute Hepatopancreatic Necrosis Disease
dc.type Article
dc.type.dcmi Text
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