Affecting the Phosphorus Retention in Fish Breeding by Using Special Cereal Varieties
Identifikátory výsledku
Kód výsledku v IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F62156489%3A43210%2F16%3A43910141" target="_blank" >RIV/62156489:43210/16:43910141 - isvavai.cz</a>
Výsledek na webu
<a href="https://mnet.mendelu.cz/mendelnet2016/mnet_2016_full.pdf" target="_blank" >https://mnet.mendelu.cz/mendelnet2016/mnet_2016_full.pdf</a>
DOI - Digital Object Identifier
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Alternativní jazyky
Jazyk výsledku
angličtina
Název v původním jazyce
Affecting the Phosphorus Retention in Fish Breeding by Using Special Cereal Varieties
Popis výsledku v původním jazyce
The aim of the study was to monitor the phosphorus digestibility of the feed used in the fish breeding. Phosphorus excreted by fish into the aquatic environment may be one of the potential sources of pollution of the aquatic environment by biogenic elements. The efforts to influence the amount of phosphorus leaving the fish breeding are divided into several directions, where the main reason is different physiology of fish digestion. In particular the pond breeding of cyprinids is becoming an increasingly addressed issue. The possibility of influencing phosphorus digestibility by the use of phytate enzymes in the carp breeding is almost impossible in practise; therefore it is important to focus on one of the other methods. Breeding of new varieties of cereals with reduced content of indigestible form of phosphorus for cyprinids is one of the potentially successful ways how to eliminate the amount of phosphorus leaving the fish breeding. 60 pc of common carp fry and four experimental diets were selected for this study. The first part of the test was focused on the feeding of wheat and the second one on the feeding of barley. Control varieties and varieties with a reduced content of phytate were used in both parts. Phosphorus digestibility of the feeds was determined through the indicator method where the crude fibre served as an indicator. In the case of wheat, there was determined a statistically highly significant increase (P<0.01) of phosphorus digestibility (by 11.21%) when feeding a low -phytate variety. In the case of barley, there was determined a statistically significant increase (P<0.05) of phosphorus digestibility when feeding a low-phytate variety. Feeding cereals varieties with a reduced content of phytate has a significant effect on reducing phosphorus loading of the aquatic environment.
Název v anglickém jazyce
Affecting the Phosphorus Retention in Fish Breeding by Using Special Cereal Varieties
Popis výsledku anglicky
The aim of the study was to monitor the phosphorus digestibility of the feed used in the fish breeding. Phosphorus excreted by fish into the aquatic environment may be one of the potential sources of pollution of the aquatic environment by biogenic elements. The efforts to influence the amount of phosphorus leaving the fish breeding are divided into several directions, where the main reason is different physiology of fish digestion. In particular the pond breeding of cyprinids is becoming an increasingly addressed issue. The possibility of influencing phosphorus digestibility by the use of phytate enzymes in the carp breeding is almost impossible in practise; therefore it is important to focus on one of the other methods. Breeding of new varieties of cereals with reduced content of indigestible form of phosphorus for cyprinids is one of the potentially successful ways how to eliminate the amount of phosphorus leaving the fish breeding. 60 pc of common carp fry and four experimental diets were selected for this study. The first part of the test was focused on the feeding of wheat and the second one on the feeding of barley. Control varieties and varieties with a reduced content of phytate were used in both parts. Phosphorus digestibility of the feeds was determined through the indicator method where the crude fibre served as an indicator. In the case of wheat, there was determined a statistically highly significant increase (P<0.01) of phosphorus digestibility (by 11.21%) when feeding a low -phytate variety. In the case of barley, there was determined a statistically significant increase (P<0.05) of phosphorus digestibility when feeding a low-phytate variety. Feeding cereals varieties with a reduced content of phytate has a significant effect on reducing phosphorus loading of the aquatic environment.
Klasifikace
Druh
D - Stať ve sborníku
CEP obor
GL - Rybářství
OECD FORD obor
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Návaznosti výsledku
Projekt
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Návaznosti
S - Specificky vyzkum na vysokych skolach
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 statě ve sborníku
MendelNet 2016: Proceedings of International PhD Students Conference
ISBN
978-80-7509-443-8
ISSN
—
e-ISSN
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Počet stran výsledku
6
Strana od-do
325-330
Název nakladatele
Mendelova univerzita v Brně
Místo vydání
Brno
Místo konání akce
Brno
Datum konání akce
9. 11. 2016
Typ akce podle státní příslušnosti
EUR - Evropská akce
Kód UT WoS článku
000392968500059