The difference between available phosphorus and available phosphorus

Available phosphorus is pointed out in some databases, while available phosphorus is used in others. What is the difference between the two? -it should mean the same thing! Total phosphorus includes phytate phosphorus and available phosphorus, available phosphorus is a customary name, alias it! -there is still a difference between the two. Generally speaking, there are endogenous phytase in animals that can decompose about 30% of phytate phosphorus, so available phosphorus is non-phytate phosphorus, which is equal to inorganic phosphorus in mineral feed + animal feed phosphorus. The available phosphorus is mineral feed phosphorus + animal feed phosphorus + 30% plant feed phosphorus-can be understood in this way, available phosphorus is a calculated value, is the data of total phosphorus minus phytic acid phosphorus, is a more accurate value. Available phosphorus is part of phytic acid phosphorus decomposed by available phosphorus and endogenous enzymes. -one meaning.-it should mean the same thing.