Do Cows Eat Their Own Poop or Mushrooms?

In the vast realm of bovine behavior, there are plenty of myths and misconceptions. Two topics that often come up are whether cows eat their own feces (a phenomenon known as coprophagy) and whether they consume mushrooms that may develop on their manure. Let's explore the reality behind these claims and uncover the truth about cow behavior.

Myth Found: Do Cows Eat Feces?

Yes, under certain circumstances, cows may indeed engage in the behavior of eating their own feces, a behavior known as coprophagy. This practice is typically observed when conditions are particularly dire, such as when food resources are scarce or when the cow's manure is fresh and rich in undigested material. The primary reason for this behavior is the cows' desire to extract additional nutrients and vitamins from their waste.

Yet, this behavior is not something that cows engage in frequently. In fact, it is more likely to occur in specific situations than as a regular habit. It's important to note that cows do possess a natural aversion to eating their own feces, as well as any other material that smells like it. This aversion has evolutionary roots, helping them protect themselves from parasitic infections, particularly from the eggs of parasitic nematodes, which can be spread through their manure.

Facts on Cow Manure and Mushroom Growth

Cow manure does not typically support the growth of mushrooms or fungi. Once the feces dry into hard patties and decompose, they do not create an environment conducive to fungal spore germination. Therefore, it is accurate to state that cow pats do not grow mushrooms, and mushrooms that grow around them are not a common occurrence.

However, there are instances when cattle have been observed consuming mushrooms, albeit not those found on their own manure. It's not uncommon for cows to eat mushrooms if they are not growing on cow feces. One notable example involves a species of mushroom called Tremella mesenterica, which grows on dead branches. My cow herd actually has a particular preference for this mushroom; while the rest of the herd ignores it, there is one cow who simply adores it.

Conclusion

In summary, while cows may occasionally eat their own feces in specific situations, it is not a common behavior. Their natural instincts prevent them from consuming material that is similar to their own excrement. As for mushrooms, while some cows may eat them, they are not growing on cow manure. The behavior of eating something preferred that happens next to feces is also known to be avoided by cows.

Understanding how cows behave and what they naturally consume can provide valuable insights into their care and management. It's important to separate fact from fiction to ensure proper care for these animals and to protect them from any unwanted health issues.