Innovations advance sustainable winter milk production
Research at Johnstown Castle is enhancing the efficiency and environmental sustainability of winter milk systems in Ireland. The studies focus on optimising grazing, utilising home-grown proteins, and reducing methane emissions to support year-round quality milk supply.
Source:
Teagasc Agricultural News
•
⏱️ 2 min read
Winter milk production remains vital for providing a steady supply of fresh milk throughout the year in Ireland, particularly to meet specific dairy product demands during the colder months. At Teagasc's Johnstown Castle, researchers Dr Michael Dineen, Neil Maher, and Aidan Lawless have been conducting extensive trials to improve the sustainability and efficiency of these systems.
Their work concentrates on maximising the use of high-quality grazed grass and selecting appropriate genetics to enhance profitability and reduce environmental impacts. Despite the reliance on conserved forage and concentrates in winter systems, which can increase costs and emissions, the team has explored strategies such as incorporating home-grown protein sources like field beans and rapeseed meal to reduce dependence on imported feeds.
Trials comparing diets with imported versus native protein ingredients demonstrated significant reductions in feed-related greenhouse gas emissions, although some declines in milk solids production were noted. Supplementing home-grown protein diets with rumen-protected amino acids helped restore milk yields close to those achieved with imported proteins. Additionally, a methane-reducing feed additive was tested, achieving a 26% cut in methane emissions without compromising milk output. These findings underscore the need for integrated approaches combining pasture management, breeding, nutrition, and emissions mitigation to enhance the economic and environmental sustainability of winter milk production in Ireland.
Their work concentrates on maximising the use of high-quality grazed grass and selecting appropriate genetics to enhance profitability and reduce environmental impacts. Despite the reliance on conserved forage and concentrates in winter systems, which can increase costs and emissions, the team has explored strategies such as incorporating home-grown protein sources like field beans and rapeseed meal to reduce dependence on imported feeds.
Trials comparing diets with imported versus native protein ingredients demonstrated significant reductions in feed-related greenhouse gas emissions, although some declines in milk solids production were noted. Supplementing home-grown protein diets with rumen-protected amino acids helped restore milk yields close to those achieved with imported proteins. Additionally, a methane-reducing feed additive was tested, achieving a 26% cut in methane emissions without compromising milk output. These findings underscore the need for integrated approaches combining pasture management, breeding, nutrition, and emissions mitigation to enhance the economic and environmental sustainability of winter milk production in Ireland.
0 views