such as
chicken fat extracted from feather meal which is prepared from
chicken wastes like chicken feathers, blood, offal and trims
Another important candidate animal waste resource is swine
manure In developing countries, voluminous quantities of manure
are produced in traditional pig industry and currently the disposal
of the manure has become a major public concern due to its huge
potential threat to public health and depletion of natural resources
if improperly managed