At what age does a dog's high-pitched bark deepen to an adult sound?

This could be normal or it could be sign of an infection. If he is coughing, sneezing, lethargic or decreased appetite then I would consider taking him to the vet. Any of these signs could be additional clues that he could have an upper respiratory infection. If Max is a big barker and has recently been barking a lot then he potentially could have just lost his voice that we do sometimes. Over a few days, it should return to normal if that's the case. You can try 25mg (one adult tablet) of Benadryl twice a day in case it is allergy related. I have seen some dogs just have a small change in the voice as they get older but it usually a gradual change. If his voice isn't improving, worsens or he starts to have any of the above symptoms then I would have your vet take a look at him. your vet will be able to do an exam and listen to his heart/lungs to ensure everything is clear. Your vet will also be able to do blood work and X-rays if needed and provide the proper meds. I hope this helps!

I would not be concerned by infrequent barking, and there is no disease that comes to mind that would cause a deeper bark. Sometimes a change in the sound of the bark can be related to certain diseases but if Bella’s bark has always been this way I wouldn’t worry.

There is no standard for barking- all dogs are individuals and some are more vocal or more easily bored out than others! Try to increase play time and use puzzle feeders and chew toys go help keep him occupied, remember to reduce his meals accordingly. It is difficult to assess his body condition score in the picture but he appears to be developing well and would be expected to be fully grown at 10-11months

Thanks for using Petco Pet Education Center, formerly Petcoach! If he is able to produce a normal bark at first then this is not too concerning at all. This just means he did not get enough air through the cords to produce a normal bark. Basically just of a less intense effort. Have a great day!

Voice changes can occur with issues in the larynx. If you notice any changes in Gunner's breathing (increased respiratory rate, abdominal effort required for him to breath), I would recommend a veterinary appointment. Otherwise, I would just monitor him at home.

Thanks for using Petco Pet Education Center, formerly Petcoach! While I could not know for sure without an examination, this is more likely to not be something of concern than the opposite. I would continue to monitor her for now and have her evaluated by a veterinarian for further assessment and treatment if this worsens. Otherwise, this may be a transient change. Good luck and have a great day!

The time it takes varies from dog to dog. If he has lost his bark from excessive barking, it will eventually come back. Artificial chew bones are ok to give but be cautious as the hard chews can break teeth and if he chews chunks off and swallows them, this could pose a risk for an intestinal obstruction. If you are concerned about his bark, you could always have a vet examine him to ensure everything else is ok and to figure out if there is another cause of his hoarse bark.