American Stockman Selenium Block is a 50lb block specially formulated to meet the needs of selenium-deficient cattle.

Selenium is a recognized antioxidant with a similar effect to Vitamin E.

Features:  

Salt Min: 95%
Salt Max: 98.5%
Zinc Min: 3500 ppm
Iron Min: 2000 ppm
Manganese Min: 1800 ppm
Copper Min: 280 ppm
Copper Max: 420 ppm
Iodine Min: 100 ppm
Selenium Min: 90 ppm
Cobalt Min: 60 ppm.