Result when the harmony is disturbed and the animal is not able to maintain the balance between its body functions and its environment
Severity of disease
Determined by the degree of imbalance
Cause of disease
Can be in the animal itself or in the environment
Health (for humans)
State of optimal well feeling in relation to the body as well as to the mind
Health (for animals)
Tissues and organs are functioning normally in harmony with each other and with its environment
Causes of disease in animals
Inborn defects
Acquired defects
Nature of the breed
Environmental causes of disease
Non-infectious (management practices)
Infectious (microorganisms)
Age of animal
Very young and very old animals are more susceptible to certain diseases
Constitution of animal
Ability of an animal to cope with diseases
Non-infectious causes of disease
Feeds and feeding
Drinking water
Management
Housing
Trauma/stress
Toxic substances
Infectious causes of disease
Viruses
Bacteria
Yeast
Fungi/molds
Protozoa
Parasites
Classical Swine Fever/Hog Cholera
Pestivirus causes the disease, similar to Bovine Viral Diarrhea, no specific medication available
Porcine Parvovirus (PPV) Infection
Leading cause of stillbirth and mummification in breeding pigs, can be controlled by mass vaccination
Swine Flu
Human flu disease caused by Influenza virus of H1N1 strains, originated from pigs and spread to humans
African Swine Fever (ASF)
Highly contagious viral disease of domestic and wild pigs, can be transmitted by direct/indirect contact, fomites, and pork
Porcine Reproductive and Respiratory Syndrome (PRRS)
Caused by an arterivirus, transmitted through nasal secretions, saliva, feces, urine, air, flies, mosquitoes, associated with reduced reproductive efficiency in herds
Pseudorabies in Pigs
Contagious viral disease that can also affect cattle, sheep, goats, cats, and dogs, causes abortion, stillbirth, small litter size, and infertility in swine