Reducing Methane Emissions in Dairy Cows: Key Findings and Implications

Strategic Insights -

Recent research at the University of Wisconsin Madison has investigated the effects of feeding 3-nitrooxypropanol (3-NOP) to dairy cows on lactation performance and income over feed costs (IOFC). The study analyzed data from 15 articles, covering 412 lactating cows, and found that 3-NOP supplementation reduced methane production by 27.9%. This decrease in methane emissions led to a mean reduction in IOFC of $0.35 per cow per day, highlighting the need for dairy farmers to be compensated for emissions reduction or participate in carbon credits programs.

Key Takeaways:

  • The research analyzed data from 15 articles, covering 412 lactating cows, and found that 3-NOP supplementation reduced methane production by 27.9%.
  • The mean reduction in income over feed costs (IOFC) per cow per day due to 3-NOP supplementation was $0.35.
  • The reduction in methane emissions with 3-NOP supplementation requires compensation of -$128,320 per year for a dairy with 1,000 milking cows.
  • The breakeven compensation for use of 3-NOP varied from -$0.42 per cow per day to -$0.21 per cow per day based on feed and milk component values from 2014 to 2023.
  • Future research is warranted to evaluate long-term effects of feeding 3-NOP on the productivity of dairy cows.
  • The study's findings have significant implications for dairy farmers, who will need to balance the economic benefits of reduced methane emissions with the costs of implementing 3-NOP supplementation.

Statistics:

  • 412 lactating cows were used in the analysis.
  • 3-NOP supplementation reduced methane production by 27.9% at an average dose of 80.3 mg/kg DM.
  • The mean reduction in IOFC per cow per day due to 3-NOP supplementation was $0.35.
  • The reduction in methane emissions with 3-NOP supplementation requires compensation of -$128,320 per year for a dairy with 1,000 milking cows.
  • The breakeven compensation for use of 3-NOP varied from -$0.42 per cow per day to -$0.21 per cow per day based on feed and milk component values from 2014 to 2023.

Sources:

  • Pupo, M.R., Ferraretto, L.F., Nicholson, C.F. (2025). Effects of feeding 3-nitrooxypropanol for methane emissions reduction on income over feed costs in the United States. Journal of Dairy Science, 108(5), 5061-5075. doi: 10.3168/jds.2024-25502.