The characteristics of a pregnant hamster mainly include the following aspects:
Physical Changes
1. Hardening of the Abdomen: The abdomen of a pregnant hamster will be a bit harder than usual. When you touch it, it feels firm, and it usually takes on a pear shape, which means it's narrow at the front and thick at the back, with the buttocks noticeably enlarged.
2. Appearance of Nipples: Symmetrical nipples will appear on the abdomen of a pregnant hamster. The hair around them may also shed a little. Usually, they will become more and more obvious and increase in number as the pregnancy progresses.
3. Weight Gain: After getting pregnant, the hamster's weight will increase. You can observe this change by weighing it.
Behavioral Changes
1. Increased Appetite: Once pregnant, the hamster's appetite will grow. It will eat more, drink more water, and prefer some nutrient-rich foods like dried small fish and mealworms.
2. Increased Sleepiness: In the early stage of pregnancy, the hamster will be energetic. But in the later stage, it will become rather sleepy and dislike excessive exercise.
3. Nest Building: A pregnant hamster may build a new nest. It might carry materials like wood shavings around and pile them up in a place that satisfies it, which is convenient for taking care of the babies after giving birth.
4. Food Hoarding: During pregnancy, the hamster may also store food, either in its cheek pouches or in the newly built nest.
Temperament Changes
1. Irritability: After getting pregnant, the hamster's temper will become irritable. It won't be willing to accept the mounting of other male hamsters and may even attack them.
2. Resistance to Male Hamsters: A pregnant hamster usually resists male hamsters. It's recommended to separate the male and female hamsters as soon as possible to avoid fights that could cause miscarriage.
Other Precautions
1. Physical Examination: To avoid difficult labor in hamsters or when the owner can't tell if the hamster is pregnant, it's best to take the hamster to the vet for a physical examination to keep abreast of its physical condition in a timely manner.
2. Preparing for Birth: Before giving birth, the hamster will drink a lot of water. The owner needs to prepare enough bedding and drinking water for it. Meanwhile, observe whether the hamster shows symptoms like anxiety and constantly walking around in the cage. At this time, it's necessary to choose a relatively warm and quiet environment for them so that the hamster can give birth at ease.
In conclusion, the characteristics of a pregnant hamster include physical changes, behavioral changes, temperament changes, and other precautions. Owners need to observe carefully and take corresponding measures to take care of pregnant hamsters.