Is it normal for my male dog not to eat when a female dog is in heat?

Yes, this is absolutely normal for an entire male. I would try to keep them separate, but if they are in the same building they will sense each other. The advice would change according to wether you would like to breed from the female dog and you are happy about having puppies or not. Nevertheless I hope we have reassured you and answered your question. Thank you for using Petco Pet Education Center, formerly Petcoach !

Hi there and thank you for using Petco Pet Education Center, formerly Petcoach to address your concern. If it has been 4 days since he last ate anything, I would recommend getting him examined by a veterinarian and having his blood tested to make sure there are no concerns. The sooner he is seen the better. There may be something more systemic going on with Temu and blood testing would help rule out multiple possible causes. I hope this helps! Please let me know if you have any other questions or concerns and I would be more than happy to help you further.

Unfortunately there is no easy solution, as long as there will be a bitch in heat just outside the door, this behaviour will not go away. The best solution is to take him to the vet and get him neutered, this will solve the problem permanently.

It is not recommended to masturbate the dog. If you don't want the dogs to mate right now you will need to put them at different households where he cannot see or smell her. The only other option is to spay/neuter them (which is actually the better option). He is not likely to go back to normal until she is off her heat cycle. To directly answer your question, yes you should worry for his health. He cannot go without eating for too many days.

Yes that could be completely normal, especially during heat period. As differential can be many, the approach must be logic, starting from offering different kind of food. A check up is needed if inappetence is complete and last for more than 24hours. Please do not hesitate to contact us again on the forum or by requesting a consultation if you have any more questions or to discuss it any further.

She may have a uterine or vaginal infection that is making her feel bad or this maybe unrelated to the cycle. a decrease in appetite can be from eating something she should not have or an infection. You can try boiled chicken and rice and if no luck then I would have her seen by a vet since it has been 2 days and I would worry about her getting dehydrated

It's not recommended to feed your dog ham because it's very fatty and can cause both GI upset and pancreatitis. It sounds like he has an upset stomach, so I would withhold food for 12-24 hours, then feed a bland diet of boiled white meat chicken (no bones) and white rice in small amounts several times a day. You can then slowly add back in his normal diet. If he vomits in the absence of food, he vomits the bland diet, develops diarrhea, stops drinking water, starts vomiting water, or becomes very lethargic, he will need to see a vet right away.