A common conversation I have with producers usually goes something like this, “I’m renting out 50 acres to my neighbor who wants to run 30 cows on it, does that sound about right to you?” This is a perfectly legitimate question, however, more details are needed on both the cattle and the pasture to fully answer this question. 

The cool spring followed by a quick warm up could make for the perfect storm. Grass tetany usually occurs in the spring when cool weather is followed by a warm period. It is typically seen in early lactation cows grazing cool-season grasses during cool, cloudy, and rainy weather.