Alaskan
Almost Self-Reliant
Dogs are very good at killing rats.
When kids were little... so food all-over so lots of rodents....
I once watched a mouse run across the room, OVER THE DOG'S FRONT PAW, yes he was awake and WATCHED IT.
Anyway... my worry is if the dog is happy to kill rodents, it is difficult to keep it from killing chickens and those breeds also tend to be more prone to nipping.
Our last big dog was a mastiff (the one that watched the mouse and did nothing). He NEVER hurt or chased livestock of ANY kind or age, but did follow our kids around and would always stand between them and any danger (stray dog, moose, unknown human, etc)
After he passed we got an Australian shepherd x poodle.... well... he killed chickens for a bit... we did train him to stop that... he is prone to nipping...both livestock and kids... but is in general a good dog... but.. we never managed to get him to kill the rodents! I was hoping the more active dog would kill rodents...
Anyway... so not sure about the trade offs... the mastiff, and the Pyrenees we had before the mastiff were much safer with kids and more sedate but still protective....
Not sure how hyper a dog needs to be a mouser.