On this Gynarchic planet many male slaves are kept on farms and ranches to aid in the production of food.
The slaves faces are often keep hidden behind hoods and masks. This limits bonding among the slave creatures. And diminishes any sense of individuality. Male farm slaves are most useful when they become just one of the herd.
After reaching full physical maturity the male slave is gelded. This aids in keeping the farm slaves docile and merged in the herd identity.
With these techniques and many cycles of breeding the male farm slaves are content with a simple life of servitude.