What is the primary contribution associated with Zebu Dairy Types in the utility classification table?

Efficient feed conversion in harsh conditions

Zebu cattle are broadly categorized based on their primary utility, and the Dairy Types are specifically linked to their ability to maintain productivity under stress. While they may not reach the absolute peak yields seen in specialized *Bos taurus* breeds kept in temperate zones with optimal inputs, the defining trait for the Dairy Types is their 'Efficient feed conversion in harsh conditions.' This means they are adept at utilizing available, often poor-quality forage and converting that energy into milk production reliably, even when facing high thermal stress or limited resources, making them economically viable in challenging tropical environments where other breeds might fail to maintain production.