Test for pregnancy in mouse

There are several methods to test for pregnancy in mice:

1. Observation of physical symptoms: One way to detect pregnancy in mice is to observe physical changes such as weight gain, increased abdominal size, and nipple development. These changes typically occur around 10-14 days after conception.

2. Palpation: By gently palpating the abdomen of a pregnant mouse, you may be able to feel small, firm lumps (the developing embryos) around 10-14 days after conception.

3. Ultrasound: An ultrasound can confirm pregnancy in mice by visualizing the developing embryos as early as 5-7 days after conception.

4. Hormone testing: Blood or urine tests can be conducted to measure levels of certain hormones such as progesterone, which increase during pregnancy.

5. Behavior observation: Pregnant mice may exhibit nesting behavior, increased food consumption, and changes in activity levels.

It is recommended to consult with a veterinarian or experienced breeder for accurate pregnancy testing in mice.