[dqv]

>That seems pretty close.

You're wildly off in your calculations because you've failed to account for replacement rate. It's 90 million heads of cattle with 30 million killed each year.

https://usda.library.cornell.edu/concern/publications/rx913p...

[e93849]

How many wild bison/deer/elk got killed each year? Right now it seems about 2/3 of fawns die, most of them eaten by predators: https://wildlife.onlinelibrary.wiley.com/doi/10.1002/jwmg.21...

I wonder if that number was higher before humans reduced the number of predators.