Livestock provides food like milk, meat and other value added products, which helps in eradicating poverty and to have self-sufficiency in food security. It also provides valuable organic manure for agriculture, thus improving soil fertility and productivity. Livestock provides draught animal power for different agricultural operations and for transportation and also to conserve fossil fuel.

TNAU's cattle expert system is a mobile app that covers Feeding Management for Cattle and Buffalo, Breeding sManagement for Cattle and Buffalo, Disease and Control Management for Cattle and Buffalo, Production Technology for Cattle and Buffalo, Calf Management for Cattle and Buffalo, General Care and Management for Cattle and Buffalo, Common Management and Practices for Cattle and Buffalo and Farm Machineries for Cattle and Buffalo