Good system!I used my boxer's gluttonous appetite against him when I bought 5 new chicks. Each time I went out to feed them I took surprise food for him. Only when his excitement and curiosity died down and he would start looking elsewhere did he get a special treat. Within the week I was letting them all out in the yard together. To date I haven't had any issue. He's 2yrs old now. Good luck with your pup!
My dogs are protective and have never hurt my chickens but I trained them 2 years.Yes they're in the same fence.I never ever leave my chickens out when I'm gone