25 percent of all cows are culled because mastitis?

That statement is likely an exaggeration. While mastitis is a significant problem in dairy herds, it's not accurate to say that 25% of cows are culled solely because of it.

Here's why:

* Mastitis is a treatable condition: While chronic or severe cases of mastitis can necessitate culling, many cows can be treated and continue to produce milk.

* Other reasons for culling: Cows are culled for various reasons, including low milk production, reproductive issues, injuries, and age.

* Varying prevalence: The prevalence of mastitis varies significantly depending on factors like herd management, hygiene practices, and genetics.

According to research, the culling rate due to mastitis is typically much lower than 25%.

It's important to consult reliable sources and specific studies to get a more accurate picture of culling rates due to mastitis.