LEARN: how farms can help reduce greenhouse gases (GHG) in livestock systems-- with a focus on the methane (CH4) produced in the livestock gut where microbes live and help animals digest feed.
(enteric fermentation, comparison of emissions between stall vs grazing livestock).
9am: The Magical Mystical Rumen and Dairy Cattle Sustainability presented by Dr. Larry Chase (Cornell)
Dairy cows are a biological factory that can convert a wide variety of forages and feeds into milk which is a high-quality food for humans. The key to this ability is the function of the rumen microorganisms. Many of the feeds used by the dairy cow are co-products of food processing and are not directly consumable by humans. The progress that dairy industry has made in lowering its impact on the environment and improving sustainability will be highlighted.
10am: Comparison of Confinement Vs Grazing Dairy Systems: Effect on production performance, nutrient use efficiency, and enteric methane emissions in dairy cows presented by Dr. Andre Brito (UNH)
Grazing systems perform multiple ecosystem services including food production, climate regulation, nutrient cycling, and erosion control. Consumers often associate grazing with “healthier and happy cows” and are willing to pay premiums for “grass-fed” dairy products. However, milk production and nutrient utilization generally decrease in pasture-based systems relative to confinement systems, which may reduce farm profitability depending on milk prices. It should be noted that there is limited research reporting both milk nitrogen (N) efficiency and methane emissions in confined versus grazing dairy cows. Therefore, our overarching objective was to build data sets to compare nutrient utilization in dairy cows under confinement or grazing management where milk N efficiency or methane emissions or both were reported in the same studies. Dietary strategies to mitigate methane emissions in grazing dairy systems will be also explored.
Check out our Spring Webinar 2022 Series
Join us, Tuesday’s, from 9-11 am and learn about ways that farms, forests, and citizens can reduce Greenhouse Gases (GHG).
January 25: Livestock Rumen & GHG
February 8: Manure Management & GHG
March 8: Field Nitrogen & GHG
April 12: TBD
May 10: Food Waste & GHG
All Webinar recordings can be found here.
This series is co-hosted with the USDA Northeast Climate Hub.
This series is supported by the USDA National Institute of Food and Agriculture, Smith Lever Project 2019-20-110.