Mature cattle grazing pasture with rapidly growing grass are sometimes found to be afflicted with a disease called grass tetany. It is characterized by an uncoordinated gait (grass staggers), convulsions, coma, and death. The primary cause is limited dietary intake of magnesium (Mg) leading to hypomagnesemia (low blood Mg) in the cow. Cows nearing calving and up to two months post-calving are most susceptible as they must draw on feed and body reserves to supply minerals for milk production. Tetany is rarely observed in younger cattle. In sheep it is not a common problem, but may occur in ewes in the first few weeks after lambing.
Weeds can lower the quality and quantity of forage in a pasture or hayfield. In general, weeds have lower protein and energy than improved, cool season perennial and annual forages under good grazing...
You are probably wondering how this applies to you if your cows are still pregnant and calves aren’t expected just yet. Let’s take a few minutes and review events prior to and after calving that have an impact on subsequent reproductive processes (and calves).
Creep-feeding and early weaning are two options a cow-calf manager has in dealing with young calves. Each practice has a specific purpose in a management scheme. However, they are sometimes used improperly and the expected goal is not achieved.