If you handle that stallion properly and he learns to respect his handlers then even if there are females he will still focus on you.
I do not use a stud chain on my stallions and can lead them through a herd of mares in heat with no issues.
They do 'talk' to the mares , strut, and arch their necks but a slight tug on the lead rope and they move off with me.
Good luck. Shalom