ANFS101 Lecture Notes - Lecture 8: Newcastle Disease, Arthropod, Milk Fever
23 Jan 2017
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Lesion: change in body organ/tissue from disease or injury. Reservoir: place where the disease agent can retreat. Zoonosis: disease that can be passed between animals and humans. Suppresses immune system, causes animal to become more susceptible to disease. Non-infectious- anything other than living agents (genetic, radiation, nutrition) Pathogenicity: a pathogen"s ability to cause disease. Contagious: how readily transmitted the disease is. Shoes and clothes can carry infectious organisms: contaminated feed/feed bags, contaminated premises (oil, bedding, litter, airborne organisms. Subclinical: no obvious symptoms, but animal can shed the agent and spread the infectious disease. Acute: sudden onset of disease; organism gets better or dies. Chronic: develops slowly, symptoms are minor and nonspecific. Detection and identification: what it is and how severs. History: of animal and the trends on farm. Physical exam: done by the livestock producer or vet. Recognize foreign invaders, flood to site of infection and kill them off. Based on maternal immune experience (get disease/vaccination)
