One of the most significant risks is ruminal acidosis, which can manifest in symptoms like a drop in milk yield, low butterfat content, and loose manure. The article also points to Sub-acute rumen acidosis (SARA) as a danger, as it can suppress the cow’s immune system, making the herd more susceptible to diseases like salmonella and mastitis. These conditions not only impact animal welfare but also present a major challenge to farm profitability, underscoring the importance of proactive animal health management.

Beyond acidosis, the article details other metabolic diseases linked to pasture content. Milk fever, or low blood calcium, is a threat to older, high-producing cows, as spring pastures are often low in calcium and high in potassium. Similarly, grass tetany, caused by a magnesium deficiency, can lead to severe neurological symptoms and even sudden death. For the dairy community, understanding these specific risks is crucial for mitigating potential herd losses and ensuring stability in milk supply.

To combat these threats, a number of proactive management strategies are recommended. The article emphasizes the importance of providing dietary buffers and offering dry hay or straw to balance the high sugar content of the pasture. Furthermore, it advises that farmers conduct pasture testing and avoid grazing hungry cows on risky pastures. These measures are essential for maintaining stable rumen function and preventing the onset of acute and chronic health issues.