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Supplementary feeding with thermally treated cereals in common carp (Cyprinus carpio L.) pond farming and its effects on water quality, nutrient budget and zooplankton and zoobenthos assemblages

Identifikátory výsledku

  • Kód výsledku v IS VaVaI

    <a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F25173154%3A_____%2F16%3AN0000007" target="_blank" >RIV/25173154:_____/16:N0000007 - isvavai.cz</a>

  • Výsledek na webu

    <a href="http://dx.doi.org/10.1007/s10499-016-0059-0" target="_blank" >http://dx.doi.org/10.1007/s10499-016-0059-0</a>

  • DOI - Digital Object Identifier

    <a href="http://dx.doi.org/10.1007/s10499-016-0059-0" target="_blank" >10.1007/s10499-016-0059-0</a>

Alternativní jazyky

  • Jazyk výsledku

    angličtina

  • Název v původním jazyce

    Supplementary feeding with thermally treated cereals in common carp (Cyprinus carpio L.) pond farming and its effects on water quality, nutrient budget and zooplankton and zoobenthos assemblages

  • Popis výsledku v původním jazyce

    To test the influence of supplementary feeding with thermally treated cereals on nutrient budget and environmental and biotic variables, three different treatments were applied in four experimental ponds: two with thermally treated cereals, one with raw cereal and a control with no supplementary feeding. Water parameters, zooplankton and zoobenthos were analysed from May to October over two consecutive years (2012 and 2013). In addition, nitrogen and phosphorus budgets were calculated as the difference between input (feed, stocked fish) and output (harvested fish). The results showed that type of supplementary feed had no influence on water quality, aside from water transparency. Ponds with added thermally treated cereal had significantly (P < 0.05) lower turbidity and suspended solids (and increased Secchi depth) compared with control. While no significant differences were observed in zooplankton assemblages between the experimental ponds and the control, macrozoobenthos density and biomass were considerably lower in the control pond. High seasonal fluctuations resulted in significant differences in density in 2012 only. The use of thermally treated cereal led to improved carp growth and nutrient budget, with an increase in carp yield and nutrient removal per hectare of pond surface. This result is a win–win situation with 10 % lower feed conversion ratio, increased profits and lower environmental impact.

  • Název v anglickém jazyce

    Supplementary feeding with thermally treated cereals in common carp (Cyprinus carpio L.) pond farming and its effects on water quality, nutrient budget and zooplankton and zoobenthos assemblages

  • Popis výsledku anglicky

    To test the influence of supplementary feeding with thermally treated cereals on nutrient budget and environmental and biotic variables, three different treatments were applied in four experimental ponds: two with thermally treated cereals, one with raw cereal and a control with no supplementary feeding. Water parameters, zooplankton and zoobenthos were analysed from May to October over two consecutive years (2012 and 2013). In addition, nitrogen and phosphorus budgets were calculated as the difference between input (feed, stocked fish) and output (harvested fish). The results showed that type of supplementary feed had no influence on water quality, aside from water transparency. Ponds with added thermally treated cereal had significantly (P < 0.05) lower turbidity and suspended solids (and increased Secchi depth) compared with control. While no significant differences were observed in zooplankton assemblages between the experimental ponds and the control, macrozoobenthos density and biomass were considerably lower in the control pond. High seasonal fluctuations resulted in significant differences in density in 2012 only. The use of thermally treated cereal led to improved carp growth and nutrient budget, with an increase in carp yield and nutrient removal per hectare of pond surface. This result is a win–win situation with 10 % lower feed conversion ratio, increased profits and lower environmental impact.

Klasifikace

  • Druh

    J<sub>x</sub> - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

  • CEP obor

    GL - Rybářství

  • OECD FORD obor

Návaznosti výsledku

  • Projekt

  • Návaznosti

    O - Projekt operacniho programu

Ostatní

  • Rok uplatnění

    2016

  • Kód důvěrnosti údajů

    S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Údaje specifické pro druh výsledku

  • Název periodika

    Aquaculture International

  • ISSN

    1573-143X

  • e-ISSN

  • Svazek periodika

    24

  • Číslo periodika v rámci svazku

    6

  • Stát vydavatele periodika

    DE - Spolková republika Německo

  • Počet stran výsledku

    17

  • Strana od-do

    1681-1697

  • Kód UT WoS článku

  • EID výsledku v databázi Scopus