Cows and chickens can reproduce on their own. For chickens to reproduce you just need a rooster around. For cows you just need a bull.
The forced insemination is actively deciding which animal is bred with which other animal and when. It is a control thing with more reliability than just having them together in the same field and hoping it worked out. Without humans they would reproduce just fine.
As a species they would likely struggle for a while as they adapted to not being protected from predators and being able to freely roam would result in some roaming places where there wasn’t enough food and water. Out of the millions of cattle there would be plenty of successes and they would live on and adapt.
Cows and chickens can reproduce on their own. For chickens to reproduce you just need a rooster around. For cows you just need a bull.
The forced insemination is actively deciding which animal is bred with which other animal and when. It is a control thing with more reliability than just having them together in the same field and hoping it worked out. Without humans they would reproduce just fine.
As a species they would likely struggle for a while as they adapted to not being protected from predators and being able to freely roam would result in some roaming places where there wasn’t enough food and water. Out of the millions of cattle there would be plenty of successes and they would live on and adapt.