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    ECONOMIC RETURNS FROM REDUCING POULTRY LITTER PHOSPHORUS WITH MICROBIAL PHYTASE

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    Requiring that crop applications of manure be based on phosphorus content (P-standard) could increase poultry litter disposal costs. Microbial phytase reduces litter P content and could reduce litter disposal costs under a P-standard. For a representative Virginia turkey farm, phytase costs 2,500andcouldincreasevalueoflitterusedforfertilizerontheturkeyfarmby2,500 and could increase value of litter used for fertilizer on the turkey farm by 390 and reduce supplemental P feed costs by 1,431.Basedonassumedlitterdemandandsupply,estimatedlitterexportpriceswithphytasecouldexceedexportpriceswithoutphytaseby1,431. Based on assumed litter demand and supply, estimated litter export prices with phytase could exceed export prices without phytase by 3.81 per ton. Phytase net returns to the farm are an estimated $ 1,435.Economic returns, Microbial phytase, Nutrient management, Phosphorus, Poultry litter, Water quality, Livestock Production/Industries,

    ECONOMIC RETURNS FROM REDUCING POULTRY LITTER PHOSPHORUS WITH MICROBIAL PHYTASE

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    Requiring that crop applications of manure be based on phosphorus content (P-standard) could increase poultry litter disposal costs. Microbial phytase reduces litter P content and could reduce litter disposal costs under a P-standard. For a representative Virginia turkey farm, phytase costs 2,500andcouldincreasevalueoflitterusedforfertilizerontheturkeyfarmby2,500 and could increase value of litter used for fertilizer on the turkey farm by 390 and reduce supplemental P feed costs by 1,431.Basedonassumedlitterdemandandsupply,estimatedlitterexportpriceswithphytasecouldexceedexportpriceswithoutphytaseby1,431. Based on assumed litter demand and supply, estimated litter export prices with phytase could exceed export prices without phytase by 3.81 per ton. Phytase net returns to the farm are an estimated $ 1,435
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