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http://krishi.icar.gov.in/jspui/handle/123456789/69875
Title: | Bioaugmentation with nitrifying and denitrifying microbial consortia for mitigation of nitrogenous metabolites in shrimp ponds. |
Other Titles: | Not Available |
Authors: | Not Available 8. Patil, P.K., Antony, L., Avunje, S., Viswanathan, V., Lalitha, N., Jangam, A.K., Dinesh Kumar, Solanki, H.G., Reddy, M.A., Alavandi, S.V., Vijayan, K.K., |
ICAR Data Use Licennce: | http://krishi.icar.gov.in/PDF/ICAR_Data_Use_Licence.pdf |
Author's Affiliated institute: | ICAR-Central Institute of Brackishwater Aquaculture |
Published/ Complete Date: | 2021-01-01 |
Project Code: | Not Available |
Keywords: | P. vannameiMitigation of nitrogenous wasteAmmonia oxidising bacteriaNitrite oxidising bacteriaDenitrifying bacteria |
Publisher: | Not Available |
Citation: | Not Available |
Series/Report no.: | Not Available; |
Abstract/Description: | Accumulation of nitrogenous metabolites is considered as one of the limiting factors in the intensification of shrimp aquaculture worldwide. The present study reports the development and evaluation of microbial consortium containing ammonia oxidising bacteria (AOB), nitrite oxidising bacteria (NOB) and denitrifying bacteria (DNB) to mitigate total ammonia nitrogen (TAN) in commercial Penaeus vannamei shrimp farms. Oxidation rates of NH3-N and NO2 due to with AOB and NOB enrichment in the spiked media was 1.57 ppm day−1 and 1.46 ppm day−1 respectively under experimental conditions. The nitrite reduction rate due to Marinobacter spp. in the DNB consortia was 3–4.5 ppm h−1. The AOB and NOB consortia carried out ammonia oxidation and nitrite oxidation at salinities between 2 and 35‰ while DNBs were active above 15‰ salinity. DGGE analysis of the consortium showed the presence of eight AOB and 11 NOB and two DNB groups and metagenome analysis revealed the presence of more than 3000 OTUs at 97% similarity index. Eubacteria dominated the enrichment (>95%) while Proteobacteria were the predominant phylum. Nitrosomonas and Nitrosococcus (AOB) and Nitrospira (NOB) and ammonia oxidising archaea like Nitrosopumilus and Nitrososphaera were detected in addition to several unclassified species. Significant reduction in the levels of TAN (p < 0.05) was observed following application (at 5 L ha−1 week-1) of the microbial consortia (formulation) in four commercial P. vannamei shrimp farming sites having the salinity between 15 and 62‰. Results of the study suggests that the AOB, NOB and DNB formulation developed microbial formulation developed in the study could efficiently mitigate the toxic ammonia species in commercial P. vannamei shrimp culture farms. |
Description: | Not Available |
ISSN: | Not Available |
Type(s) of content: | Journal |
Sponsors: | Not Available ICAR |
Language: | English |
Name of Journal: | Aquaculture |
Journal Type: | Research |
NAAS Rating: | 10.24 |
Impact Factor: | 4.242 |
Volume No.: | Not Avail541able |
Page Number: | 736819 |
Name of the Division/Regional Station: | Not Available |
Source, DOI or any other URL: | Not Available https://doi.org/10.1016/j.aquaculture.2021.736819 |
URI: | http://krishi.icar.gov.in/jspui/handle/123456789/69875 |
Appears in Collections: | FS-CIBA-Publication |
Files in This Item:
File | Description | Size | Format | |
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Patil et al 2021c.pdf | 3.88 MB | Adobe PDF | View/Open |
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