1. Observe breathing: Under normal circumstances, healthy bag cats will start breathing soon after birth, and their breathing will be stable and regular.
2. Observe the body temperature: the body temperature of the doll cat should be stable within the range of 36-37.5 degrees Celsius. Too low or too high a body temperature may indicate health problems.
3. Observe motor ability: Puppies will quickly show basic motor ability, such as crawling and looking for nipples. Strong kittens will respond more positively to external stimuli.
4. Observe the feeding situation: the mother cat will start feeding the kitten soon after birth. If kittens can find nipples, suck normally and gain weight gradually, then their viability is higher.
5. Observe whether the kitten has abnormal symptoms, such as abnormal weakness, slow response, shrinking, vomiting, etc. These conditions may indicate a health problem.