In-situ environmental amelioration of biofloc supported Litopenaeus vannamei culture in West Bengal, India

Date 2021-05
Author(s) Das Shib KinkarORCID1, Mandal AmitORCID2
Affiliation(s) 1 : Department of Aquaculture, Faculty of Fishery Sciences, West Bengal University of Animal and Fishery Sciences, Kolkata- 700094, West Bengal, India
2 : Department of Aquaculture, College of Fisheries, Guru Angad Dev Veterinary and Animal Sciences University, Ludhiana-141004, Punjab, India
DOI 10.17882/80770
Publisher SEANOE
Abstract

In-situ environmental amelioration potential of biofloc media mediated through the removal of nitrogenous metabolites, reduction of pathogenic Vibrio with concurrent increase in Bacillus community and reduction of feed was studied in white Litopenaeus vannamei culture. Three treatments viz. biofloc without neem+ commercial feed (B), biofloc with neem +commercial feed (NB), only commercial feed without biofloc (F)and, one control (C) withno biofloc and no feed in triplicate was employed with a stocking density of 60 PL-20 m3 in outdoor earthen ponds (1000 m3). Two biofloc media (C: N = 15-10:1) with and without neem leave extract were applied with reduction of supplementary feed from 50% to100%. Final body weight in neem based biofloc media was higher than the others. with high survival (87%). Superiority of biofloc system over the feed based system was established as live weight gain was higher by 28.48-137 % with reduced FCR (7.60% - 8.18%) in the former. Ffeed cost was reduced both in B (8.1 %) and NB (8.77%) compared to feed based culture system (F). Biofloc system supported cumulative increase of Bacillus population with concomitant reduction of luminous Vibrio population.

Licence CC-BY-ND
Utilisation Data may not be completely reproducible because of the temporal, spatial variations with a number of variable and interacting environmental factors. Data are published without any warranty, express or implied. The user assumes all risk arising from his/her use of data. Data are intended to be research-quality and include estimates of data quality and accuracy, but it is possible that these estimates or the data themselves contain errors. It is the sole responsibility of the user to assess if the data are appropriate for his/her use, and to interpret the data, data quality, and data accuracy accordingly.
Acknowledgments Authors acknowledge the owner of shrimp culture ponds, East Midnapur, West Bengal, India for allowing experimentation as per our design. The laboratory facilities provided by the Department of Aquaculture, Faculty of Fishery Sciences, West Bengal University of Animal and Fishery Sciences, Kolkata, India are gratefully acknowledged.
Data
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Data 38 KB XLS, XLSX Processed data Open access
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How to cite 

Das Shib Kinkar, Mandal Amit (2021). In-situ environmental amelioration of biofloc supported Litopenaeus vannamei culture in West Bengal, India. SEANOE. https://doi.org/10.17882/80770


In addition to properly cite this dataset, it would be appreciated that the following work(s) be cited too, when using this dataset in a publication :


Das Shib Kinkar, Mandal Amit (2021). Environmental amelioration in biofloc based rearing system of white leg shrimp (Litopenaeus vannamei) in West Bengal, India. Aquatic Living Resources (accepted)