Therefore, additional calcium is needed to develop the 1 to 1 ratio.” “Since grains are low in calcium and high in phosphorus, some grains are adequate to meet phosphorus requirements but not calcium needs. “Calcium and phosphorus should be at least a 1 to 1 ratio,” explains Mays. Accordingly, lactating mares need higher amounts of calcium and phosphorus to keep elevated levels in their milk.” Greatest need is in the first year of a horse’s life when it grows the majority of its height. Calcium and phosphorus are needed for healthy teeth and bones. “Salt is lost through sweat and urine so it should be available free choice to the horse at all times. “Horses foremost need the minerals salt, calcium and phosphorus,” states Mays. Since soil types can vary from farm to farm and no one soil type has all minerals needed by a horse, mineral supplements are necessary, says Mays. “Therefore, if the soil lacks the mineral then the plant grown there will not have that mineral.” Glennon Mays, clinical associate professor at the Texas A&M College of Veterinary Medicine & Biomedical Sciences. “It is important to remember that mineral content of forages and hay are determined by the mineral make-up of the soil where they are grown,” notes Dr. While most horses get the majority of their nutrients from pasture and grain, many may not be receiving the mineral nutrition needed for optimum health. When it comes to enjoyment and quality of life, a horse’s true fitness may mean more than just a pasture and some oats. Minerals: Important for Quality Horse Nutrition September 17, 2010
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