id start off by worming him with drontal one tab per 10 kilo if you think hes 25kilo id give him three tabs,morning id feed 100 gram of biscuit and 2lbs of meat at night,give bones as an extra twice a week they will firm the stools and add lard or codliver oil daily around a tablespoon full,or you can add sardines,tuna any fish etc but id only give it as a change from lard or oil etc,i wouldnt give fish as the diet id give the dog meat,i know others that give large quantitys of fish but il stick with my way i feed. if hes a pup and still growing he will require more food to develop i start an