Animal husbandry , also called animal science , stockbreeding or simple husbandry , is the agricultural practice of breeding and raising livestock . It has been practiced for thousands of years, since the first domestication of animals .
A swineherd is a person who cares for hogs and pigs (older English term: swine ). A shepherd is a person who cares for sheep. A goatherd cares for goats. A cowherd cares for cattle . In previous years, it was common to have herds which were made up of sheep and goats. In his case, the person tending them was called a shepherd. Camels are also cared for in herds. In Tibet yaks are herded. In Latin America , llamas and alpacas are herded.
I do not think that data exists that talks about when the term was first used. The term shepherd goes back thousands of years. The Bible records in Genesis that there was goat herding going on.
JayR