Yes Maxi junior is good for 4 month German shepherd dog Breed. You can also go through the specifically for Royal Canin German Shepherd Junior also.
The Bull Mastiff includes in the giant breed of dog, and their most common issue has noticed by everyone and that is the ear infection, and due to this issue, they start to whining, scratching, circling, head shaking, and much more pantomimes. Due to the folded downward ears, there has the maximum contingency of the infestation of ear mites, a wax buildup, or debris into their ear canal without any hurdle.
The major ear infections could lead three complicated diseases such as Otitis external, internal and media, etc.
The feeding guidelines have mentioned on the pouch as in print message based otherwise you can take the advice of a veterinarian expert/physician.
There are several branded pet food manufacturers that have been specially prepared for specific breeds, which are regarded as the adult/senior dog. The Royal Canin Labrador adult dog food or other branded dog foods such as Fidele’s senior dog food, Pedigree’s adult canine food, etc.