I've got 3 dogs. So that is a no go. Can't risk them getting hurt.
Do you not feel the dogs are a deterrent on their own? What kind of dogs, do they sleep outside? Even indoor dogs should alert if anyone tries to come in the yard.
I have scary dogs. Some breeds people won’t come anywhere near, German Shepherds being one; one instance where breed stigma can play in your favor. Even yappy small dogs will give away someone’s presence and they can inflict nasty bites too, lol,
Most of the time people who are brazen enough to steal are scoping the place out ahead of time. Maybe leave the dogs outdoors more often during the day so people are aware they are there if it gives you some peace.
I’ve also heard of people in fruit groups putting up warning signs for pesticide use to make people afraid to steal their fruit haha. You might be surprised how often people steal fruit crops.