SHARING OPTIONS: Buckets should be placed in areas where sheep are likely to congregate or travel past with multiple buckets used if required. Grass tetany The forecast for the coming days includes wintry showers and sharp fluctuations in temperature, which will lead to an increased risk of grass tetany. As animals have a poor ability to store magnesium, prevention must focus on regular supplementation or enhancing magnesium absorption. The most common form of supplementation is offering ewes access to high-mag lick buckets. Multiple buckets may need to be offered in large areas and where ewes and lambs are less likely to travel to access them. Feeding concentrates containing magnesium will help raise blood magnesium levels while even feeding standard concentrates will also help.