I have two male dogs, Pointer and rottweiler, they were good, eating 3 times aday, playing all the time and cool, till the female dog from the next door came in they both did it with her, two days later they sttoped eating the same food, I am in Iraq so, they don't have any good vet at all, please advise.
Thanks in advance.

Male dogs when in the breeding season won't eat. They have other things to worry about.

Plus, feeding three times a day is too much for adult dogs. Cut them back to twice a day (morning and night). If they don't eat, put their food up and wait until dinner time or vice versa. Healthy dogs won't starve themselves.

Also, please get your dogs either under control or fixed. Unfortunately your dog just contributed to the unwanted and abandoned pet over-population.