Orphaned kittens will need extra care for survival to compensate for the loss of their mother. Kittens must be kept warm, very clean, and fed frequently using an appropriate amount and type of formula by bottle or less often tube feeding. To ensure nutrition is adequate, daily weight checks should be performed for the first 4 weeks, then weekly thereafter. Kittens must be stimulated to urinate and defecate. Environment, feeding instruments, and the kitten must be kept meticulously clean as they are more susceptible to infection than kittens cared for by their mother.
Mature, senior, and geriatric cats often require different nutrition than adult cats due to their changing ability to digest nutrients and underlying medical conditions. Senior diets vary widely in nutrient profiles as there are yet no established standards. Recommendations for senior cat diets need to be based on clinical examination and discussion between veterinarian and owner. It is very important to ensure adequate water intake for senior cats.