Neutering a male cat after the estrus period and after one and a half years of age will not affect the male cat's gills, because the main reason for the male cat's gills is controlled by male hormones. Neutering a fully developed male cat will greatly reduce the male hormone in the male cat's body, causing the male cat to be unable to grow gills.

How to feed a male cat after sterilization to help with gill development:

1. You can usually feed the cat some chewy food, which can exercise the masseter muscles. It can promote hair growth to a certain extent.

2. Reasonably enrich the diet structure. When choosing cat food for male cats, choose nutritious and good-quality cat food. At home, choose nutritionally balanced, whole-meat, grain-free cat food.

3. Increase nutrition. Eat more protein- and fat-rich meats, such as salmon, chicken breast, beef and other protein-rich meats. Feed 3-5 times a week, as well as some fruits and vegetables. .

4. Pay attention to deworming measures, and develop a good habit of deworming male cats regularly, otherwise they will become thinner and lose their gills.