Why do we use cow manure in so many things but other animals’ poop (i.e. cats and dogs) are considered to be toxic?

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Why do we use cow manure in so many things but other animals’ poop (i.e. cats and dogs) are considered to be toxic?

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As a gardener, I think of this question as asking, “Why can I go to the garden shop and buy a bag of cow manure and put that in my garden, but I shouldn’t put my cat’s poop in my garden?”

Some things that come to mind:

* The problem isn’t “toxicity” but rather living parasites. Cats have different parasites from cows. If cat parasites are worse for me than cow parasites, then having cat poop in my garden (where I will probably touch it) is worse than having cow poop in it.
* The cow manure from the garden shop has been dried and fermented for a while; it isn’t raw wet cow poop. Some of the parasites have been killed. I can’t guarantee that I can do the same with my cat’s poop.
* Maybe it’s quite possible to process cat poop in a way that would make good fertilizer for a garden, but you and I haven’t heard of it yet.

Vegetarian poop is best for the garden. Rabbits is best as it’s good as soon as it’s pooped. Meat eater poop probably needs more composting to be useful as meat takes longer to break down and might have more nasties.

you can use dog or cat poop but you have to compost it.

9 weeks in average temps, several months in colder temps.

In any case, do not use on crops.

Carnivores and omnivores generally have manure that is less suitable for gardening.

Additionally, any animal that has or does eat rodents is likely to carry parasites that can infect humans, due to unusual similarity in our macro biology.

If it eats meat, it’s generally no good. If it eats rats and mice, it’s generally dangerous.

Before we had indoor plumbing, and chemical fertilizers you used to be able to sell your own poop to night soil men.

The poop was processed in a way that made it safe to use as fertilizer for crops. If you were rich and ate a lot of meat, you could sell your poop for more as meat poop has more nitrogen.

If the infrastructure still existed to compost human poop, you would also still be able to sell your pets poop. Right now, chemical fertilizer is cheap enough that there is no market for collecting poop from a dispersed group of omnivores and obligate carnivores.

Cows, pigs and chickens on the other hand live in massive farms where waste disposal is the business owner’s responsibility and the density of factory farms make it possible to produce a product that is cheap enough to compete with chemical fertilizers.