Proceedings of the World Veterinary Congress, Yokohama, Japan, 3-9 September 1995
METHODS FOR ANALYSIS OF POSITIVE ECONOMIC IMPACT OF ANIMAL HEALTH AT POPULATION LEVEL
Following methods for analysis of positive economic impact of general (crude) animal health at population level are based on comparison (in quantity or quality in monetary or products measure units) between real productivity (utility) of all animals, optimal/potential productivity of healthy and reduced productivity of diseased animals. Other methods are based on comparison of production inputs data.
Productivity benefit of animal health (BENpr) equals to the difference between average productivity of healthy (PROas) and diseased animals (PROai) multiplied by number of healthy animals (as) or to the difference between average productivity of all (PROa) and diseased animals multiplied by number of all animals (a): BENpr=(PROas-PROai)*as; BENpr=(PROa-PROai)*a. Analogical methods can be used for profit/income benefit of animal health.
Input benefit of animal health (BENin) equals to the difference between average inputs to production by diseased (INai) and healthy animals (INas) multiplied by number of healthy animals or to the difference between average inputs to production by diseased and all animals (INa) multiplied by number of all animals (a): BENin=(INai-INas)*as; BENin=(INai-INa)*a.
Economic values of animal populations and their products which animal health services should protect are enormous. Effects of successful eradication programmes last and cumulate in follow-up periods. Benefit of health is usually much more important than losses due to diseases. New international trade policy increases the role of animal health at population and herd levels.