Effects of Enrichment of Fish Pond on Growth Performance of Carps - Shoaib, Mohammad;Rizvi, Syed Anser;Karim, Aasia
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An investigation of the effects of enrichment of fish pond on growth performance of Catla catla, Labeo rohita and Cyprinus carpio in Thatta District was carried out in earthen ponds located at the Chilya Fish Hatchery, Chilya, Thatta (Sindh). These ponds were fertilized with two organic manures (poultry manure and cowdung) and two inorganic fertilizers (nitrophos and urea).The length-weight relationships of carps under the enrichment of these four fertilizers followed almost isometric growth pattern except for Catla catla and Labeo rohita under urea and Cyprinus carpio under cowdung and urea.…mehr

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Produktbeschreibung
An investigation of the effects of enrichment of fish pond on growth performance of Catla catla, Labeo rohita and Cyprinus carpio in Thatta District was carried out in earthen ponds located at the Chilya Fish Hatchery, Chilya, Thatta (Sindh). These ponds were fertilized with two organic manures (poultry manure and cowdung) and two inorganic fertilizers (nitrophos and urea).The length-weight relationships of carps under the enrichment of these four fertilizers followed almost isometric growth pattern except for Catla catla and Labeo rohita under urea and Cyprinus carpio under cowdung and urea. Among the four fertilizers, urea showed relatively less yield, as it only augment nitrogen deficiency. The rate of increase fish yield was corresponded with the enrichment response in the form of planktonic biomass. These fertilizers supply adequate levels of nutrients necessary for production of primary producers and ultimately for the fish.
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Autorenporträt
Dr. Mohammad Shoaib is Assistant Professor of Limnology and Freshwater Fisheries Biology at the Department of Zoology, University of Karachi. He has nineteen years of experience in research and teaching. He has written numerous articles to bring new technology resources in fish nutrition and aquaculture.