Great article thank you so much. I'd like to ask how could you protect butyrate (ca, sod.) salts to reach gut without change, not digested or absorbed, to do their action on intestinal villi.
I would suspect that the product is a butyrate salt. The IPSF abstract described by Dr. Fowler says "Butyrate" not "butyric acid". Salts are easy to make, and tend to be soluble in water. Which salt isn't clear though.
Dosage is definitely a good question though. The abstract does not indicate the dosage for feed or water that was used in the study. Seems like a pretty big oversight by the reviewers to leave that out. Can't assess practicality without knowing dosages.
In drinking water I use for poultry and turkey a mix product of Estman with mcfa( more caproc acido ) with emulsifier. Dosage is around 800-1000 cc for t water. Use against gram + and gram -.