Looking for a natural way to boost your animals’ immune systems? Priority IAC’s Gold Spike™ is an immune supplement with unique formulas designed for cattle, sheep, goats, horses, poultry, and pigs. This natural supplement contains strains of Smartbacteria, scientifically-chosen to help support a healthy GI tract and optimal immune system for your herd. Depending on the animal, this extra boost can help support increased milk production, udder health, and more.