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Effect of lined and earthen farming practices on pond health in white leg shrimp, Penaeus vannamei culture

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Title Effect of lined and earthen farming practices on pond health in white leg shrimp, Penaeus vannamei culture
Not Available
 
Creator R.Saraswathy
M. Muralidhar
Ravisankar Thiagarajan
A. Panigrahi
Suvana Sukumaran
P. Kumararaja
K. Vinaya Kumar
Arunachalam Nagavel
 
Subject Economics
Lined
Earthen ponds
Shrimp culture
Water quality
 
Description Not Available
Shrimp culture and its export are growing fast in India in tandem with the global
demand for protein-rich seafood. Farmers are always seeking newer technologies and
cultural practices to alleviate risks and remain profitable and sustainable. One of the
practices that is gaining prevalence in recent years is Penaeus vannamei culture in
lined ponds in brackish water and low saline environments. Our study aims to under-
stand the differences in physicochemical and chemical parameters between lined and
earthen ponds in simulated experiments and field studies and weighs the economic
benefits. Earthen ponds exhibited lower pH fluctuations than lined as soil functions
as a buffer against pH variations. The key differentiators were the lower metabolites
and higher nutrients in the lined ponds leading to a healthier pond environment. It was
complemented by lower vibrio load in the lined ponds, reducing the threat of diseases
significantly. Comparatively, 12.5% higher survival rate and 9% higher growth rate
were evidenced in the earthen ponds. Economically, lining material increases the ini-
tial capital cost and the income per culture was lower due to marginally lower survival
and growth rates in lined ponds. However, this reduced profitability was more than
offset by the possible higher number of cultures per year and reduced time between
cultures. The economic analysis of average culture data established economic advan-
tage of culture in lined ponds over earthen ponds with an incremental Benefit Cost
ratio of 2.15. Ultimately, the choice of lined versus earthen culture depends on the
investment and risk potential of the farmer.
Not Available
 
Date 2023-02-03T06:47:59Z
2023-02-03T06:47:59Z
2022-07-26
 
Type Journal
 
Identifier Not Available
Not Available
http://krishi.icar.gov.in/jspui/handle/123456789/75960
 
Language English
 
Relation Not Available;
 
Publisher Not Available