What was wrong with them and the hens, that they could not do it the normal way? (Turkey stud farm?)
Domestic turkeys are unable to mate naturally because the birds are bred to have enormous breastmeat and cannot actually get close enough to each other to mate.
The breasts on the hybrid white turkey toms is so big he cannot mount a female and get his parts lined up right.
So humans have to “help”. Those big, broad-breasted turkeys are really over-bred freaks but everyone wants that kind of bird come Thanksgiving.