Here's why:
* Digestibility: Cows have a complex digestive system, but they can't fully break down the tough structure of eggshells. This means the calcium in the eggshells might not be absorbed efficiently.
* Potential Choking Hazard: Large pieces of eggshells can be a choking hazard for cows, especially if they are fed whole.
* Contamination Risk: Eggshells can be contaminated with bacteria, parasites, or chemicals, which can pose health risks to cows.
Instead of feeding eggshells directly, consider:
* Adding crushed eggshells to feed: This provides a calcium supplement, but it's important to crush them finely to ensure they can be digested.
* Using eggshell powder: Eggshell powder is a commercially available calcium supplement that's specifically designed for livestock.
* Providing a calcium-rich mineral mix: This offers a balanced source of calcium and other essential minerals.
Always consult with a veterinarian or livestock nutritionist for advice on the best way to supplement your cows' calcium intake.