Ok-so I've been riding for 40 years, and teaching and training for 20. I have always based a horses' jump on his athletic abilities, scopiness, etc. I've seen the solid, 2'6 packers that can stretch to 3' but are better suited to the 2'6 job.
Bioactive vitamin D or calcitriol is a steroid hormone that has long been known for its important role in regulating body levels of calcium and phosphorus, and in mineralization of bone.
Vitamin & Mineral Functions. VITAMINS: Vitamin A â retinol and beta-carotene. Vitamin A is absorbed primarily from the small intestine. As a fat-soluble vitamin, vitamin A can be stored in the body and used when there is decreased intake. Vitamin A is essential for vision, growth, and tissue differentiation. Vitamin A has excellent antioxidant properties that help neutralize free-radicals.