ONTARIO STUDY SHOWS STEAMED HAY IS SUPERIOR FOR EQUINE ATHLETES

Results are in from the Equine Guelph funded research that marks the first study to investigate steamed, soaked and dry hay in Ontario. Tiana Owens, a University of Guelph graduate student involved in the study, presented these results during her thesis defence last month. The research team, which also includes Madeline Barnes, Vanessa Gargano, Wilfredo D. Mansilla, Katrina Merkies and Anna K. Shoveller, found that steaming hay may be a superior method for treating hay when it’s being used to feed healthy performance horses.

 

The researchers compared nutrient content, feed preference, and glycemic response between dry, soaked and steamed timothy-alfalfa hay grown in Ontario. Standardbred racehorses were used in the study for researchers to examine which hay treatment may be most suitable for performance horses. Owens explains, “Horse caregivers often soak or steam hay to reduce its non-structural carbohydrate (NCS), including water soluble carbohydrates (WSCs). A high dietary intake of these carbohydrates can be detrimental to some horses.” However, these practices are based on research from the United Kingdom, so information on Ontario hay was needed.

Video: Swine Industry Advances: Biodigesters Lower Emissions and Increase Profits

Analysis of greenhouse gas (GHG emissions) in the Canadian swine sector found that CH4 emissions from manure were the largest contributor to the overall emissions, followed by emissions from energy use and crop production.

This innovative project, "Improving Swine Manure-Digestate Management Practices Towards Carbon Neutrality With Net Zero Emission Concepts," from Dr. Rajinikanth Rajagopal, under Swine Cluster 4, seeks to develop strategies to mitigate greenhouse gas emissions.

While the management of manure can be very demanding and expensive for swine operations, it can also be viewed as an opportunity for GHG mitigation, as manure storage is an emission source built and managed by swine producers. Moreover, the majority of CH4 emissions from manure occur during a short period of time in the summer, which can potentially be mitigated with targeted intervention.

In tandem with understanding baseline emissions, Dr. Rajagopal's work focuses on evaluating emission mitigation options. Manure additives have the potential of reducing manure methane emissions. Additives can be deployed relatively quickly, enabling near-term emission reductions while biodigesters are being built. Furthermore, additives can be a long-term solution at farms where biogas is not feasible (e.g., when it’s too far from a central digester). Similarly, after biodigestion, additives can also be used to further reduce emissions from storage to minimize the carbon intensity of the bioenergy.