Phosphorus requirement of common carp (Cyprinus carpioL) based on growth and mineralization
Autor: | H Kühlwein, F. J. Schwarz, L C Nwanna |
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Rok vydání: | 2010 |
Předmět: | |
Zdroj: | Aquaculture Research. 41:401-410 |
ISSN: | 1365-2109 1355-557X |
Popis: | The effect of diets supplemented with varied levels of inorganic phosphorus (P) (NaH2PO4) on the growth, body composition, nutrient digestibility and mineralization in common carp (Cyprinus carpio L) was evaluated to determine the optimum P requirements. The six diets used were DPO, as the basal diet with a total P content of 1.30 g kg−1, and DP1, DP2, DP3, DP4 and DP5, which contained 4.10, 6.70, 11.6, 14.9 and 23.4 g P kg−1 respectively. Weight gain, SGR, apparent digestibility coefficient of organic matter and P, whole body ash, P, Ca and Mg increased significantly with increasing dietary P levels while dry matter (DM), fat and Zn content decreased. Feed conversion ratio was the poorest (P |
Databáze: | OpenAIRE |
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