Simply so, what means livestock?
: animals kept or raised for use or pleasure especially : farm animals kept for use and profit.
One may also ask, why are animals sold in guineas? Originally they were worth one English pound, equal to twenty shillings. However, as the price of gold went up, the value of a Guinea increased, at times up to thirty shillings. These days the term 'Guinea' is really only used in horseracing as well as in the sale of some livestock such as rams.
Likewise, what are cattle markets?
A cattle market is a market where cattle are bought and sold.
Why is it called livestock?
The animals you find on a farm are collectively called livestock. The word comes from the sense of stock that means "supply for future use" or "sum of money; from the 1500s, this word was also used to mean "movable property of a farm."
