Using mango waste as animal feed

About 40 to 60% of the fruit intake ends up as waste in the mango processing factories. This fruit waste consists of 12-15%, 5-10% pulp waste and 15-20% mango seed kernel. Waste of mango can be used for making cattle feed commercially. Major waste like mango seed kernel is a good source of carbohydrate.

Drying of mango kernels and peel can make a high class energy food for animal feed. Cake left after the extraction of kernel oil could substitute for wheat and maize flour in animal feed as it is a good source of many essential amino acids.

There was a study conducted on poultry that a mixture of maize meal and mango kernel flour to the extent of 20% had no detrimental effect on the development of chickens.

Dried kernels can be fed as such to animal without any further treatment of processing. Mango peel is also suitable as a supplement in fish food.
Using mango waste as animal feed

Fertilizer from cow manure

Most manure applied to corn comes from dairy operations. Manure from cattle feedlot operations is drier and less costly to transport, and is therefore often removed from the farm and shipped to other operations.

Cow manure is typically used as a compost or soil improver, to return nitrogen and carbon to pastures and soils. Use of cow manure only to fertilize grasses is common practice in most dairying areas with most farmers not even aware of the economic gains through using inorganic fertilizers.

Large livestock operations are increasingly required to have nutrient management plans, which require balancing nutrient applications with the nutrient utilization of crops.

Gardeners have used cow manure for centuries and this has led to the belief that it is a good fertilizer as well as a soil amendment. The average nutrient content of cattle manure is N: 0.6%, P: 0.3%, and full range of trace elements.
Fertilizer from cow manure