Recent research highlights the importance of omega-3 fatty acids in enhancing the longevity and health of dairy cows. The findings, presented by researcher David Sheedy from Dairy UP, suggest that nutritional strategies could significantly improve cow welfare and farm profitability. This research will be discussed during the Dairy Research Foundation Symposium, scheduled for November 26-27, 2025, in Wollongong.
Sheedy emphasized that as cows undergo additional lactations, their chances of facing reproductive and health issues increase. “Under current management systems, farmers often sell cows at younger ages than may be optimal,” he noted. This practice is typically aimed at avoiding the complications that arise with age.
The research indicates that enhancing omega-3 fatty acid metabolism could mitigate metabolic issues, enabling producers to manage herds that are not only more flexible but also more resilient and profitable. “We found that omega-3 fatty acid metabolism may have a role in improving reproduction and health outcomes in older cattle, ultimately increasing longevity,” Sheedy explained.
To reach these conclusions, Sheedy’s research involved analyzing metabolic and fat markers associated with longevity in dairy cows. The study took approximately 2,000 blood samples from 29 Australian dairy herds. A significant finding was the notable decline in blood levels of omega-3 fats as cattle aged.
“If we can boost omega-3 levels through supplementation and meaningfully improve survival, the potential gains for herd longevity are substantial,” Sheedy stated. Following this research, the Dairy UP team is now investigating omega-3 supplementation strategies, potentially utilizing marine-sourced products rich in omega-3 fatty acids. These strategies aim to assess the long-term impacts on cattle health, reproduction, and survival under Australian farming conditions.
The findings from this research could lead to transformative changes in dairy farming practices, offering a pathway to improve cow welfare and extend productive life. For more information on the Dairy Research Foundation Symposium, visit drfsymposium.com.au. Further details on the ongoing research can be found at www.dairyup.com.au.
