How Do Rats Have Babies?
WouterRats have babies just like humans do, but unlike us, rats don’t need a veterinary assistant to give birth. During pregnancy, rats generally have a natural delivery, which occurs within 1-2 hours. Sometimes, however, complications may arise, and it may be necessary to have a veterinarian present during labor. In these cases, the veterinarian may prescribe antibiotics to prevent infections.
When rats are pregnant, they start to build their nest a few days before giving birth. The baby rats weigh about a quarter of an ounce, and are born with closed eyes and ears. By two weeks, the babies begin eating solid food. Afterwards, the baby rats are weaned from their mothers. The male rats will most likely stay with the mother after birth, as the female is able to breed with both sexes.
Newborn rats are born with white milk inside their stomachs. The mother rat will try to suckle the babies, but they may not compete for nipples. Therefore, it is advisable to separate them to give the runt a better chance at sucking on the nipples. Leaving four to five babies with the runt can stimulate the mother to nurse.
Rats usually go into heat every four to five days. When they are in heat, they will exhibit signs such as gaping their vulva or excessive back arching. They will also engage in a mating dance. During this time, they will brace their legs stiffly, raise their tail and lift their head. They will also vibrate their ears.
