1 Demodex is a mite that lives in small numbers in the skin of healthy dogs and cats without causing a problem. 2  Unhealthy dogs and cats, especially those with immune problems, Cushing's Disease, or on steroid medications can develop severe demodex infection.umans have their own form of demodex mite. The demodex mite is not rareâit is found in small numbers in the skin of most dogs and cats because the mites on their mothers normally travel to young pets shortly after birth.
- the hazard is growth of bacteria: 1  control measures are continuous recording of temperature (automatic) or visual control of icing of the fish. 2  the critical limit for fish temperature is 1 C. 3  a log on temperature and icing observations must be kept. 4  corrective action is checking of fish from period out of control, sorting and rejection of low ...
limiting factors. Limiting factors. A limiting factor limits the growth or development of an organism, population, or process. A limiting factor is a resource or environmental condition that limits the growth, abundance, or distribution of an organism or a population of organisms in an ecosystem.