This project aimed to improve methane (CH4) and nitrous oxide (N2O) emissions quantification techniques. Furthermore, it intended to generate strategies to help mitigate these emissions in dual-purpose livestock in the Andean Region. This project was structured in five components. The first one consisted of biophysical and socioeconomic characterization of dairy production sites. In a second one, CH4 and N2O emissions were evaluated in production systems (traditional and improved). The third one evaluated feeding strategies to enhance milk production systems and to reduce their emissions. Followed by the development of gas mitigation scenarios for pilot sites. Finally, improvements in research capacities in CH4 and N2O and contribution to public policies. Livestock feeding improvements such as non-structural carbohydrates reductions and/or higher dietary protein resulted in greater 1.34 liters of milk per day and 34% lesser CH4 emissions per liter of milk.
Livestock feeding improvements such as non-structural carbohydrates reductions and/or higher dietary protein resulted in greater milk yield per day and lesser CH4emissions per liter of milk.
Improved systems had greater milk yield per lactation (2,369 vs. 1,990 kg/lactation) and lower cost of production (0.29 vs. 0.21 $/kg) compared to the traditional ones. Furthermore, CH4 emission per liter of milk was lower in improved systems than in traditional systems (29 vs. 44 g CH4/kg of milk). Hence, feed with lower structural carbohydrates and greater crude protein contents helped to reduce enteric fermentation and enhance milk production.
- 1 new facility for methane quantification (Corpoica, Colombia)
- 1 new facility for quantification of methane and nitrous oxide (UNALM, Peru)
- 51 professionals trained
- 6 graduate level theses