Anatolians are too hard to control but they will defend.
Burmese dont have the lungs and are full of defects with a short life span. Wonderful dogs tho for families.
Labs can do 20 miles and go for more but they can overheat in the summer as can any dog, their protective instinct is in question.
There is a a bit of a catch 22 in your requirements. Most dogs are a ? to whether or not they will defend without training. A dog that will doesnt always make the best family dog with a few acceptions. You are caught in the middle.
A few breeds that come to mind pros and cons to all for you.
Pitbull, take out liability insurance
Doberman, questionable safety with kids and strangers
Husky, sheds lots hard to train so so with kids and stangers
Malamute, see above
German shepard (working line), not bad overall, must come from a good breeder health issues
Rhodesian Ridgeback, not bad a little aloof with strangers but a good shedder
Lab (american hunting not English show line), question to its protective instinct good in all other areas
Golden retriever, Same as lab but sheds like a rain tarp, needs heavy grooming
Weimaraner, see lab but more high stung, otherwise good
Border Collie, most athletic dog in the canine world, smartest too. Must be exercised daily and given brain stimulas
Australian shepard, see border collie, not quite as high strung, longer hair and sheds like a tarp
Those are what immediately come to mind there are many others. One thing to note you cant pound the joints of a pup on long runs or walks until they are full grown and hardened. This can take up to 2 years for some (most large) breeds, you will ruin the cartilage and have to put them down at a young age. I have seen this over and over with runners and it infuriates me. Let them mature and you can pound their joints forever with nil affect.
If I were you putting in those miles I would be thinking Rhodesian, German Shepard, Australian Shepard. They will all need obediance training of course and you need education on the breed but they are all a bit protective with great lungs and good for families etc...
My 3 cents.
Skam
Burmese dont have the lungs and are full of defects with a short life span. Wonderful dogs tho for families.
Labs can do 20 miles and go for more but they can overheat in the summer as can any dog, their protective instinct is in question.
There is a a bit of a catch 22 in your requirements. Most dogs are a ? to whether or not they will defend without training. A dog that will doesnt always make the best family dog with a few acceptions. You are caught in the middle.
A few breeds that come to mind pros and cons to all for you.
Pitbull, take out liability insurance
Doberman, questionable safety with kids and strangers
Husky, sheds lots hard to train so so with kids and stangers
Malamute, see above
German shepard (working line), not bad overall, must come from a good breeder health issues
Rhodesian Ridgeback, not bad a little aloof with strangers but a good shedder
Lab (american hunting not English show line), question to its protective instinct good in all other areas
Golden retriever, Same as lab but sheds like a rain tarp, needs heavy grooming
Weimaraner, see lab but more high stung, otherwise good
Border Collie, most athletic dog in the canine world, smartest too. Must be exercised daily and given brain stimulas
Australian shepard, see border collie, not quite as high strung, longer hair and sheds like a tarp
Those are what immediately come to mind there are many others. One thing to note you cant pound the joints of a pup on long runs or walks until they are full grown and hardened. This can take up to 2 years for some (most large) breeds, you will ruin the cartilage and have to put them down at a young age. I have seen this over and over with runners and it infuriates me. Let them mature and you can pound their joints forever with nil affect.
If I were you putting in those miles I would be thinking Rhodesian, German Shepard, Australian Shepard. They will all need obediance training of course and you need education on the breed but they are all a bit protective with great lungs and good for families etc...
My 3 cents.
Skam