Maxi/Guard Nasal Vac is an avirulent live culture Bordetella bronchiseptica vaccine for the prevention of respiratory disease in baby pigs. Maxi/Guard Nasal Vac features include one dose intranasal administration , providing benefits of lowere labor intensity, less stress ( no needles) and lower costs. Nasal Vac is recognized by both private and corporate swine production facilities as a valuable disease preventative. Dosage: ½ ml into each nostril of piglets at one to three days of age. Packaged in 30 does bottles (nasal tips included).