As a 20+ year breeder of Miniature Schnauzers I have always had healthy litters with very few problems. In the last litter, however, a puppy with a cleft palate was born. After doing some research I noted the two main possible causes could be a lack of enough folic acid or too much Vitamin A. I supplement with a veterinary formula so I want to know a doseage or if I should add additional folic acid in a pregnant bitch's diet? Thank you.