First of all, you should purchase female Mininubians, also called does, which are healthy and also have big udders as they will produce good quantity of milk. Make sure that the does are almost at least 1 year old.
Before buying, observe the temperament of the does as sometimes they become aggressive. Only buy those female Mininubians which are cool in temperament.
Weight is also another thing you should be careful of. The does should be average looking and you should not purchase over-weight does.
Then get a male Mininubians, also called buck, for breeding. The Nigerian buck is the best one for your does as the new born Mininubians will be 75 percent Mininubians and 25 percent Nigerian. This type of Mininubians always grabs attention of traders as they have features of both types of goats.
If you do not have sufficient money to purchase buck, then you can also hire a buck from another breeder. Usually breeders charge 50 percent of the outcome of breeding which is not as costly as buying a buck.
Keep observing the does when they are fertile or in heat. They become fertile mostly in early days of fall season each year.
When your doe is ready, the leave her with a buck in your farm house or let them graze together. You have to be patient as sometimes they take three weeks to get attracted towards each other.
You can check whether your Mininubians doe is pregnant or not after 20 to 25 days of their mating. In this time, the symptoms of pregnancy start appearing on the body of your doe.