I recently bought 3 calves from a dairy farm that are 2 weeks old. They all have the selenium deficiency with the knuckled over front hooves. At birth they received colostrom, Bo-Se, and vitamin A-D. The herd manager said he has given them another 2 ml of Bo-Se a week later and that I could give them another 2ml in a couple of days. Any other suggestions? Will they outgrow this? They have splints on now, are they any help? Thank you!!