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Nitrogen loss abatement from dairy cow excreta through urine and faeces separation: The effect of temperature and exposure period on NH3 fluxes

Author

Listed:
  • Becciolini, Valentina
  • Leso, Lorenzo
  • Fuertes Gimeno, Esperanza
  • Rossi, Giuseppe
  • Barbari, Matteo
  • Dalla Marta, Anna
  • Orlandini, Simone
  • Verdi, Leonardo

Abstract

Manure management is a crucial aspect warranting attention since a significant proportion of anthropogenic NH3 emissions are derived from it. In dairy cattle, only 20 to 30% of the dietary N is retained in milk, while a relevant amount is excreted in urine and faeces. A substantial proportion (60 to 80%) of the urine-N of high-producing dairy cows exists as urea, which is rapidly converted to NH4+ by the urease enzyme, and volatilizes into the atmosphere as NH3. While extensive literature studied the effects of technical solutions for cattle housing and waste storage, environmental parameters and manure treatments on NH3 emission, limited information exists on its quantification under controlled conditions from isolated and mixed excreta.

Suggested Citation

  • Becciolini, Valentina & Leso, Lorenzo & Fuertes Gimeno, Esperanza & Rossi, Giuseppe & Barbari, Matteo & Dalla Marta, Anna & Orlandini, Simone & Verdi, Leonardo, 2024. "Nitrogen loss abatement from dairy cow excreta through urine and faeces separation: The effect of temperature and exposure period on NH3 fluxes," Agricultural Systems, Elsevier, vol. 216(C).
    • Handle: RePEc:eee:agisys:v:216:y:2024:i:c:s0308521x24000489
    DOI: 10.1016/j.agsy.2024.103898
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