[KNMVD point of view: castration of pups and kittens at a very young age].
D000367:Age Factors; D000758:Anesthesia / Q000009:adverse effects / Q000662:veterinary; D000818:Animals; D002369:Castration / Q000662:veterinary*; D002415:Cats / Q000502:physiology / Q000601:surgery*; D004285:Dogs / Q000502:physiology / Q000601:surgery*; D005260:Female; D008297:Male; D011155:Population Control / Q000379:methods; D012307:Risk Factors