Nitrogen Losses from Laying Hen Manure in Commercial High-rise Layer Facilities

  title={Nitrogen Losses from Laying Hen Manure in Commercial High-rise Layer Facilities},
  author={Peilin Yang and Jeffery C. Lorimor and Hongwei Xin},
Nitrogen (N) losses from four high-rise laying hen houses, representing four commercial layer farms in Iowa, were determined from measured performance data of Hy-Line W-36 White Leghorn layers (i.e., manure production, egg production, feed intake, body weight, and mortality). Nitrogen loss was 25, 33, 37, and 41% for Farms A, B, C, and D, respectively, based on the Total Kjeldahl Nitrogen (TKN) in feed. A significant factor contributing to the difference in the N losses was the moisture content… CONTINUE READING
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