Precision Microbes Feed Supplement for Horse and Foal (Multiple Sizes)Precision Microbes Complimentary Feed Supplement for Horse and Foal 1L Like all of our domestic animals, the equine microbiome is a fascinating area of research and is now recognised as an essential component to having happy, healthy horses. The product is certified organic and is certified as containing no banned substances from the Laboratoire des Courses Hippiques in France. Precision Microbes Complimentary Feed Supplement for Horse and Foal 1L is