Indexing

Effect of Different Organic Manures on Growth and Production of Different Carps Rearing from Fry to Fingerlings

Author: Rajanna, C.* and Shivananda Murthy H.

PDF Download PDF

Abstract

Aquaculture is rapidly developing sector in India and has great demand. Presently, the productivity of fisheries was poor. In order to reduce cost of rearing, the use of indigenous wastes as food is sustainable approach. An experiment was conducted in cement ponds to determine the effect of different organic manures on Specific growth rate and net production of carps (Catla catla, Labeo rohita and Cyprinus carpio) during fry to fingerling stage. Ponds were applied with three types of organic manures viz., cow dung (T1: CD), poultry manure (T2: PM) and cow dung + poultry manure (T3: CD + PM) applied @ 10,000 kg/ha, 5000 kg/ha and 5,000 + 5,000/ha respectively. Periodically growth and survival of fishes were recorded. The result revealed that, in Catla, the growth in weight appeared best in PM treatment, followed by CD, and CD+PM treatment in that order but the differences between treatments were slight. In rohu, the growth in weight may be considered best in PM treatment, followed by CD

Keywords

Organic Manures, Poultry manure, Cow dung, Rohu, Catla and Common carp.

Conclusion

The low-cost fish production needs use of organic fertilizers and better utilization of naturally available food through composite fish culture. In Catla, Rohu and Common carp, poultry manure treated ponds were shown significantly higher weight, specific growth rate and net production. The known interaction of organic manure and fish production is through abundance of phytoplankton as well as zooplanktons in rearing ponds. The detailed mechanism of interaction of organic manure and fish growth should be studied in future.

References

-

How to cite this article

Rajanna C. and Shivananda Murthy H. (2021). Effect of Different Organic Manures on Growth and Production of Different Carps Rearing from Fry to Fingerlings. Biological Forum – An International Journal, 13(3a): 511-516.