What is the difference between available phosphorus and utilizable phosphorus?
The difference between available phosphorus and utilizable phosphorus
Some databases refer to available phosphorus, while others use the term utilizable phosphorus. What exactly is the difference between the two?
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They should mean the same thing! Total phosphorus includes phytate phosphorus and utilizable phosphorus. Available phosphorus is just a customary term, an alias!
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There is still a difference between the two
Generally speaking, endogenous phytase in the animal body can break down about 30% of phytate phosphorus, so utilizable phosphorus is non-phytate phosphorus, equal to inorganic phosphorus in mineral feed + phosphorus in animal feed; whereas available phosphorus is mineral feed phosphorus + animal feed phosphorus + 30% plant feed phosphorus
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They should mean the same thing
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Can it be understood this way: utilizable phosphorus is a calculated value, the figure obtained by subtracting phytate phosphorus from total phosphorus, and is a relatively accurate value, whereas available phosphorus is utilizable phosphorus plus the portion of phytate phosphorus broken down by endogenous enzymes.
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Same meaning
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They should mean the same thing
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They should mean the same thing! Total phosphorus includes phytate phosphorus and utilizable phosphorus. Available phosphorus is just a customary term, an alias!
---------------------
There is still a difference between the two
Generally speaking, endogenous phytase in the animal body can break down about 30% of phytate phosphorus, so utilizable phosphorus is non-phytate phosphorus, equal to inorganic phosphorus in mineral feed + phosphorus in animal feed; whereas available phosphorus is mineral feed phosphorus + animal feed phosphorus + 30% plant feed phosphorus
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They should mean the same thing
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Can it be understood this way: utilizable phosphorus is a calculated value, the figure obtained by subtracting phytate phosphorus from total phosphorus, and is a relatively accurate value, whereas available phosphorus is utilizable phosphorus plus the portion of phytate phosphorus broken down by endogenous enzymes.
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Same meaning
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They should mean the same thing