Effect of supplemental feed type on water quality, plankton and benthos availability and carp (Cyprinus carpio L.) growth in semi-intensive monoculture ponds
| Autor: | Gordana Subakov-Simić, Miloš Ćirić, Katarina Bjelanović, Zoran Marković, Zorka Dulic, Stanislav Čičovački |
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| Rok vydání: | 2015 |
| Předmět: |
0106 biological sciences
Aquatic Science 01 natural sciences Zooplankton water quality cyanobacteria Common carp Nutrient Aquaculture Carp semi-intensive system 2. Zero hunger pelleted feed biology business.industry 010604 marine biology & hydrobiology digestive oral and skin physiology fungi 04 agricultural and veterinary sciences 15. Life on land biology.organism_classification 6. Clean water Agronomy Cladocera common carp 040102 fisheries 0401 agriculture forestry and fisheries pond Water quality Monoculture business |
| Zdroj: | Aquaculture Research |
| Popis: | A four-and-a-half months study was conducted in nine earthen ponds to evaluate the addition of different supplemental feeds as a management tool for enhancing natural food availability and common carp growth, while maintaining optimal water quality in the semi-intensive system. Three supplemental feeds were used: commercial extruded and pelleted feed with 25% protein and 7% fat and cereals. The type of supplemental feed did not influence water quality, except hardness, but significantly affected abundance of cyanobacteria, natural food availability and common carp growth. The use of pelleted feed was related to the lowest abundance of cyanobacteria in the ponds. For the two groups of large zooplankton, Cladocera and Copepoda, abundances were higher in the ponds with pelleted feed compared with the ponds where cereals and extruded feed were used. The abundance of benthic macroinvertebrates in the treatment with pelleted feed was three times higher than in the other two treatments. The results of this study indicate that pelleted feed can help farmers not only as a source of nutrients for carp growth but also indirectly as a management tool for maintaining ecological stability and control of cyanobacterial bloom in ponds. |
| Databáze: | OpenAIRE |
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