Comparative evaluation of the fertilizer value of human urine, cow manure and their mix for the production of carp fingerlings in small holding tanks

Advanced fry of Indian carps and post-larvae of freshwater prawn were reared for 120 days in 18 small holding tanks using each treatment in triplicate as: (a) non-aerated and (b) aerated fresh human urine (0.01%), (c) cow manure (1.8 kg tank−1), mixed treatment with cow manure and human urine under...

Full description

Saved in:
Bibliographic Details
Published in:Aquaculture international 2012-08, Vol.20 (4), p.735-749
Main Authors: Jana, B. B, Bag, Sujoy Kumar, Rana, Sukanta
Format: Article
Language:English
Subjects:
Agricultural production
animal growth
Anniversaries
Biomedical and Life Sciences
carp
cattle manure
Fertilizers
fingerlings
fish culture
fish production
Freshwater
Freshwater & Marine Ecology
freshwater fish
humans
Life Sciences
Manures
nitrates
phosphates
phytoplankton
primary productivity
shrimp
shrimp culture
tanks
urine
water quality
yields
Zoology
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Advanced fry of Indian carps and post-larvae of freshwater prawn were reared for 120 days in 18 small holding tanks using each treatment in triplicate as: (a) non-aerated and (b) aerated fresh human urine (0.01%), (c) cow manure (1.8 kg tank−1), mixed treatment with cow manure and human urine under (d) iso-phosphorus and (e) iso-nitrogenous conditions and (f) control. Examination of water quality, primary productivity of phytoplankton, plankton and fish growth from different treatments revealed that the total fish yield was maximum in the cow manure treatment (621.5 g tank−1) followed by the mixed treatments under iso-nitrogenous (428 g tank−1) and iso-phosphorus (333 g tank−1) conditions. Fish yield in different treatments was the direct function of the gross and net primary productivity of phytoplankton which, in turn, were directly related to the concentrations of nitrate and phosphate levels of water as well as their ratios in different treatments employed.
ISSN:0967-6120
1573-143X
DOI:10.1007/s10499-012-9500-1