Hi Sir or Madam,.My name is Jane. I have been working professionally with animals especially dogs in both health and behavioral issues for over 18 years. I have over 14,000 satisfied customers. It will be my pleasure to work with you today. .The first thing I would recommend is taking a stool sample to your vet and have it checked for parasites such as worms or protozoan infections such as giardia or coccidia. These are pretty common causes for the stool to become softer. These can be transmitted quite easily as well especially if your dog drinks from puddles at all or other standing water. You can read about them here:
If you have an ongoing relationship with your vet, he may just let you bring in a sample for testing. Another cause might be an allergy to an ingredient in the new food. Compare the ingredients and see if there is a difference. Any food switch should be gradual with a mixing of the two foods to avoid diarrhea and loose bowels. If there is a difference in ingredients, you may wish to switch back to the other food or find one that has similar ingredients.
What you might try is adding a little canned pumpkin (not pie filling) to his food. Just a spoonful should help absorb excess fluid and make the feces firmer but still pliable.
I also want to give you information on dewormers as well. Common dewormers are Panacur, which is a prescription product so you need to obtain it from your Vet and it works on roundworms and whipworms. Wormers labeled as Pyrantel Pamoate are the best over the counter medication for roundworms. Drontal plus is also a prescription product and is used for the treatment of Tapeworms, though dewormers with praziquantel work well against tapeworms. Many heartworm preventatives also help control whipworms and roundworms. Another reason to keep your dog on Heartworm medication.
If a protozoan infection is present, your vet may prescribe an antibiotic to help clear the infection. I hope this information is helpful to you and you are satisfied with my response. If you would like any additional information or have more questions please don’t hesitate to press the reply to expert or continue conversation button so I can address any issues you still have .