disease is also called Chlostridial myonecrosis, black quarter and
quarter ill. It is an important disease of cattle and sheep. It
affects skeletal muscles. This condition starts when tissue damage
occurs. It is acute bacterial,
emphysematous, myonecrotic, highly fatal disease. Wide range
of ruminants is susceptible to this condition but cattle and sheep
are more susceptible at age of 6 months – 2 years. This
disease is more in summer and fall.
It is widely distributed all over the world occurring in all the
countries mostly in hilly areas and sandy regions. This is one of
the most important causes of cattle mortality in sandy and hilly
regions. According to epidemiological survey it is an economically
important disease of livestock. When pasture or grazing grounds once
become affected, the disease will reappear regularly in susceptible
animals year after year.
disease is caused by Cl. Chouvei which is G +ve, spore forming,
anaerobic bacillus. The spores of this organism are highly resistant
to environment influences and disinfection.
First entry is through alimentary mucosa after ingestion of
contaminated feed or eruption of teeth. Contamination of soil and
pasture occurs from infected feacal material or decomposition of
carcasses of animals.