If you want to breed never breed from closely related Degus particularly brother and sister pairs but try to get your Degus as unrelated as possible. Cataracts in Degus are a genetic condition and the symptoms are greying of the eye and sight problems in older Degus. Degus have whiskers which prevent them from bumping into things and a good sense of smell and so should manage fine. Please think very carefully before breeding any small animal. It can be difficult to provide the attention and pay for the vet bills that lots of pets inevitably mean.
Females can be sexually mature as young as six weeks and males after a couple of months.
The gestation period is long for rodents at about 90 days and the babies are born with fur and teeth and their eyes are often already open. Only a few hours after their birth, they will start searching the surroundings of the nest box. Soon after this, they will also start eating normal food. They can be removed from their parents at 5-6 weeks and it is important to remove the females from their father promptly or he could mate with them. When the Degus are mating, they produce a strange sound and move their tails around.