If cause of death is unknown, contact your veterinarian and have an autopsy performed. Invite a veterinarian to speak to the class about animal health considerations and the value of an autopsy. If possible, have the class observe veterinarian perform an autopsy. Immunity A. Immunity is the condition of being able to effectively combat infection. Usually, if immunity is gained in this way, there is little or no sickness, which helps maintain rates of gain and production.
Natural immunity refers to the protection an animal has when it is born.
It is inherited by an animal from its parents. Acquired immunity is associated with the presence of antibodies from another immune animal or from exposure to the disease. Passive immunity is acquired by transferring of antibodies from an immunized animal to an unimmunized one. The immunity is immediate and lasts as long as antibodies remain in the body, usually 3 to 6 weeks. Young or newborn animals receive passive immunity from colostrum obtained from their mothers.