Dangerous Heat Stress Expected on Cattle Mid-Week

 

With high pressure firmly in place over the Southeast for the next week, we can expect to see temperatures and heat stress rise to dangerous levels. This will affect both outdoor workers and livestock. Producers will want to keep careful track of worsening conditions and take appropriate actions to reduce the effects of the combination of high heat and humidity. You can see the 7-day forecast for the Southeast at https://www.ars.usda.gov/plains-area/clay-center-ne/marc/docs/heat-stress/main/. The link also takes you to a page with information on how to recognize heat stress in cattle and take protective action. Note that this is an updated link from what I published in this blog a few years ago.

 

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.