Effect of aeration on production and water quality changes in intensive carp culture
345 / 284
Abstract
The effect of mechanical aeration on the water quality, fish growth and biomass production in earthen ponds, stocked with catla, rohu, mrigal, silver carp, grass carp and Puntius goninotus at a combined density of 25,000 fingerlings/ha,were studied for a period of one year. During the culture period, dissolved oxygen and nitrite contents were significantly higher (P<0.05) in the aerated ponds over the control ones while, variation in water pH, total alkalinity, total hardness, free CO2, DOM, TAN, nitrate and phosphorus were insignificant.
The total alkalinity, total hardness, pH and dissolved oxygen showed decreasing trend, while no definite trend was observed in free CO2 and DOM. Total ammonia, nitrite and nitrate concentration of water increased progressively
with culture period with exception of TAN reducing after eight months. Additional input as mechanical aeration in pond yielded 1.43 times higher production (8,739 kg/ha), 1.33 times higher feed conversion, higher growth rate and survival, while ensuring good water quality in the ponds.
Downloads
Download data is not yet available.
Downloads
Issue
Section
Articles
License
The copyright of the articles published in Indian Journal of Fisheries vests with the Indian Council of Agricultural Research, who has the right to enter into any agreement with any organization in India or abroad engaged in reprography, photocopying, storage and dissemination of information contained in these journals. The Council has no objection in using the material, provided the information is being utilized for academic purpose but not for commercial use. Due credit line should be given to the ICAR where information will be utilized.How to Cite
Das, P. C., Ayyappan, S., Jena, J. K., Singh, S. K., Patamajhi, P., & Muduli, H. K. (2011). Effect of aeration on production and water quality changes in intensive carp culture. Indian Journal of Fisheries, 51(2), 173-183. https://epubs.icar.org.in/index.php/IJF/article/view/7185