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Selection of feed phosphates

Although the choice of different feed phosphates depends on individual feeding practices, selection should primarily be based on criteria such as the biological value or digestibility, as well as chemical properties and the content of undesirable elements. The table offers a tool to objectively select feed phosphates based on number of criteria. To select the best possible fitted feed phosphates according to the selection criteria in the table below use our decision tree tool.

Selection criteria of feed phosphates
Application

compound feed

mineral feed
mineral blocks
mash feed
Physicalgranulationgranular
powder
density
friability
molasses absorption
Chemical

P% dietary space dictates phosphorus concentration
P% solubility; a possible indication of quality
      2% citric acid      > 95%
      alk. amm. citrate > 95%
      water                  > 80%  In case of MCP
                                > 50%  In case of MDCP
Ca%
Mg%
Ca/P ratio                  to correct Ca/P ratio in finished feed
pH                             possible reactions
buffering capacity
undesirable elements
trace elements

Biological valueDepending on animal-comparison should be based on available or digestible P-content. This enables to decrease phosphorus output into the environment without endangering animal productivity or welfare. Consider possible validation of trace elements content

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