Field trial of beneficial effects of carotenoid-producing Bacillus aquimaris SH6 spores to whiteleg shrimps

This field study was performed to demonstrate that Bacillus aquimaris SH6 spores administered as a feed supplement in adequate amounts confer beneficial effects to the whiteleg shrimp. Shrimps were administered either B. aquimaris SH6 spores at 1×106 CFU g-1 pellet (SH6 group) or a mixture of SH6 a...

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Main Authors: Thi Tham Nguyen, Thi Huong Nguyen, Thi Ngoc Que Nguyen, Thi My Tran, Thi Thu Huong Pham, Dinh Thang Nguyen, Thi Van Anh Nguyen
Format: Article
Language:English
Published: Vietnam Ministry of Science and Technology 2022-04-01
Series:Vietnam Journal of Science, Technology and Engineering
Subjects:
Online Access:https://vietnamscience.vjst.vn/index.php/vjste/article/view/199
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author Thi Tham Nguyen
Thi Huong Nguyen
Thi Ngoc Que Nguyen
Thi My Tran
Thi Thu Huong Pham
Dinh Thang Nguyen
Thi Van Anh Nguyen
author_facet Thi Tham Nguyen
Thi Huong Nguyen
Thi Ngoc Que Nguyen
Thi My Tran
Thi Thu Huong Pham
Dinh Thang Nguyen
Thi Van Anh Nguyen
author_sort Thi Tham Nguyen
collection DOAJ
description This field study was performed to demonstrate that Bacillus aquimaris SH6 spores administered as a feed supplement in adequate amounts confer beneficial effects to the whiteleg shrimp. Shrimps were administered either B. aquimaris SH6 spores at 1×106 CFU g-1 pellet (SH6 group) or a mixture of SH6 and B. subtilis SH23 spores at 5×105 CFU g-1 pellet for each strain (SH6-SH23 group). After a 28-day feeding period, the number of SH6 spores in the gut of whiteleg shrimp in the SH6 group and the SH6-SH23 group were 5.7×103 CFU gut-1 and 7.7×103 CFU gut-1, respectively. The total bacterial population of these two experimental groups increased about 10-75% compared to that of the control group. The astaxanthin level and red colour score were the highest in the SH6-SH23 group (1.66 µg.g-1 shrimp; 28-29), followed by the SH6 spore group (1.42 µg.g-1 shrimp; 27-28), and were the lowest in the control group (0.61 µg.g-1 shrimp; 26-27). Nevertheless, the growth rate of shrimps was similar (7.8-8%) among the three groups. In conclusion, feed supplements containing SH6 and SH23 spores co-effectively improved live counts and diversity of microbiota in shrimp guts, as well as improved astaxanthin level and red colour of whiteleg shrimps.
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spelling doaj.art-eb9c6b01acae47679b12249bb61b71432023-02-01T08:12:49ZengVietnam Ministry of Science and TechnologyVietnam Journal of Science, Technology and Engineering2525-24612615-99372022-04-0161110.31276/VJSTE.61(1).52-57Field trial of beneficial effects of carotenoid-producing Bacillus aquimaris SH6 spores to whiteleg shrimpsThi Tham Nguyen0Thi Huong Nguyen1Thi Ngoc Que Nguyen2Thi My Tran3Thi Thu Huong Pham4Dinh Thang Nguyen5Thi Van Anh Nguyen6Key Laboratory of Enzyme and Protein Technology, University of Science, Vietnam National University, Hanoi; Faculty of Biology, University of Science, Vietnam National University, HanoiKey Laboratory of Enzyme and Protein Technology, University of Science, Vietnam National University, Hanoi; Faculty of Biology, University of Science, Vietnam National University, HanoiKey Laboratory of Enzyme and Protein Technology, University of Science, Vietnam National University, Hanoi; Faculty of Biology, University of Science, Vietnam National University, HanoiANABIO Research & Development JSC, HanoiKey Laboratory of Enzyme and Protein Technology, University of Science, Vietnam National University, Hanoi; Faculty of Biology, University of Science, Vietnam National University, HanoiKey Laboratory of Enzyme and Protein Technology, University of Science, Vietnam National University, Hanoi; Faculty of Biology, University of Science, Vietnam National University, HanoiKey Laboratory of Enzyme and Protein Technology, University of Science, Vietnam National University, Hanoi; Faculty of Biology, University of Science, Vietnam National University, Hanoi This field study was performed to demonstrate that Bacillus aquimaris SH6 spores administered as a feed supplement in adequate amounts confer beneficial effects to the whiteleg shrimp. Shrimps were administered either B. aquimaris SH6 spores at 1×106 CFU g-1 pellet (SH6 group) or a mixture of SH6 and B. subtilis SH23 spores at 5×105 CFU g-1 pellet for each strain (SH6-SH23 group). After a 28-day feeding period, the number of SH6 spores in the gut of whiteleg shrimp in the SH6 group and the SH6-SH23 group were 5.7×103 CFU gut-1 and 7.7×103 CFU gut-1, respectively. The total bacterial population of these two experimental groups increased about 10-75% compared to that of the control group. The astaxanthin level and red colour score were the highest in the SH6-SH23 group (1.66 µg.g-1 shrimp; 28-29), followed by the SH6 spore group (1.42 µg.g-1 shrimp; 27-28), and were the lowest in the control group (0.61 µg.g-1 shrimp; 26-27). Nevertheless, the growth rate of shrimps was similar (7.8-8%) among the three groups. In conclusion, feed supplements containing SH6 and SH23 spores co-effectively improved live counts and diversity of microbiota in shrimp guts, as well as improved astaxanthin level and red colour of whiteleg shrimps. https://vietnamscience.vjst.vn/index.php/vjste/article/view/199astaxanthinBacillus aquimariscarotenoidgutspore
spellingShingle Thi Tham Nguyen
Thi Huong Nguyen
Thi Ngoc Que Nguyen
Thi My Tran
Thi Thu Huong Pham
Dinh Thang Nguyen
Thi Van Anh Nguyen
Field trial of beneficial effects of carotenoid-producing Bacillus aquimaris SH6 spores to whiteleg shrimps
Vietnam Journal of Science, Technology and Engineering
astaxanthin
Bacillus aquimaris
carotenoid
gut
spore
title Field trial of beneficial effects of carotenoid-producing Bacillus aquimaris SH6 spores to whiteleg shrimps
title_full Field trial of beneficial effects of carotenoid-producing Bacillus aquimaris SH6 spores to whiteleg shrimps
title_fullStr Field trial of beneficial effects of carotenoid-producing Bacillus aquimaris SH6 spores to whiteleg shrimps
title_full_unstemmed Field trial of beneficial effects of carotenoid-producing Bacillus aquimaris SH6 spores to whiteleg shrimps
title_short Field trial of beneficial effects of carotenoid-producing Bacillus aquimaris SH6 spores to whiteleg shrimps
title_sort field trial of beneficial effects of carotenoid producing bacillus aquimaris sh6 spores to whiteleg shrimps
topic astaxanthin
Bacillus aquimaris
carotenoid
gut
spore
url https://vietnamscience.vjst.vn/index.php/vjste/article/view/199
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