R. Hari Lal / RHari Lal
Livestock and poultry industries produce meat, milk and egg, and also generate large volumes of waste water and solid wastes that could be beneficial or harmful to the environment. The waste products which includes livestock or poultry excreta and associated feed losses, beddings, wash -water and other such waste materials represent a valuable resource that if used wisely, can replace significant amounts of inorganic fertilizers Animal wastes in the form of manures are valuable sources of nutrients and organic matter for use in the maintenance of soil fertility and crop production. Studies with animals have shown that 55-90% of the nitrogen and phosphorus content of animal feed is excreted in faeces and urine Poor handling of animal waste generated from livestock industries over the years had posed serious public concern on environmental quality and biosecurity issues and had made direct disposal of livestock wastes on land socially less acceptable. The conversion of livestock waste to useful products that are environmentally friendly turn out to be the only alternative to the emerging environmental issues associated with indiscriminate livestock waste therefore creating awa
