Keep your herd in peak condition with Compass Minerals(R) American Stockman(R) cobalt iodized salt blocks. Cobalt is important for Vitamin B12 synthesis, which is essential for appetite stimulation and normal rates of protein, carbohydrate, and mineral metabolism. Cobalt also prevents deficiencies that can lead to low conception rates, abortions and weak calves. | American Stockman Cobalt Iodized Salt Block | Size 50 lbs