Here are some possible causes of rabid breathing in dogs:
* Mastitis: Mastitis is an inflammation of the mammary glands that can occur in lactating dogs. It can be caused by a bacterial infection, trauma, or other underlying medical conditions. Mastitis can cause fever, pain, swelling, and discharge from the nipples.
* Endometritis: Endometritis is an inflammation of the lining of the uterus that can occur in lactating dogs. It can be caused by a bacterial infection, retained placenta, or other underlying medical conditions. Endometritis can cause fever, pain, discharge from the vagina, and difficulty urinating.
* Metritis: Metritis is an inflammation of the uterus that can occur in lactating dogs. It is usually caused by a bacterial infection, but can also be caused by trauma or other underlying medical conditions. Metritis can cause fever, pain, discharge from the vagina, and difficulty urinating.
* Pyometra: Pyometra is a condition in which the uterus becomes filled with pus. It can occur in lactating dogs that have not been spayed or that have had a recent pregnancy. Pyometra can cause fever, pain, discharge from the vagina, and difficulty urinating.
* Cancer: Cancer of the mammary glands, uterus, or ovaries can also cause rabid breathing in dogs.
If your dog is lactating and has rabid breathing, it is important to seek veterinary care as soon as possible. Your veterinarian will be able to determine the cause of your dog's symptoms and provide appropriate treatment.