When a young horse starts to train we must make sure it receives enough calcium to support the development of its bones. Young horses are commonly put into training after the end of the grazing season. Young trotters and thoroughbreds will usually be around 18 months old when training starts, while riding horses are one year older. After happy days and 24-hour activity in the summer months, very different living conditions await the young horse when it is stabled. This is usually individually and in boxes, with limited access to…