02/14/2025
Spring grazing is right around the corner. Time to start thinking about preventions for upcoming health issues in our herds. One of the big concerns every spring is grass tetany, especially in our older lactating cows and rapidly growing calves. Prevention is key for this disease as when symptoms start to show it can become an emergency situation. Fields at particular risk are ones where heavy amounts of manure or chicken litter have been applied. Cool season grass fields such as fescue and timothy as well as annual grasses such as wheat and rye have low levels of magnesium and increase this risk. The best prevention is to feed a high mag(10-12%)mineral from late winter, prior to lush grass growth, through early summer when the heat slows down the rate of growth. Other preventative measures can be diluting your grass stand with legumes such as clover which can be frost seeded at this time of year as well.
More information can be found at the link below.
Let me know if you would like help assessing your herd risks and developing a plan to mitigate these.
Dr. Brett McCaskill
As spring approaches and grass begins to grow, grazing livestock may experience a forage-related problem known as grass tetany, grass staggers, lactation tetany, or hypomagnesemia. Grass tetany is a metabolic disorder caused by reduced magnesium (Mg) levels in the animal’s blood. In cattle, it gen...