One male can produce many litters simultaneously. A female can only be bred when in heat and then hopefully not in every cycle.
I've noticed that in litters, typically there are fewer females born than males. Maybe its just the places I've looked at litters though.
Lisa
__________________  Lisa  Proud Marine Mom
Carter, Cooper & Crissy's Mom and Sebastian's Nana Never underestimate the warmth of a cold nose! |