Animal Science

a male swine that was castrated while young

• barrow

• gilt

• sow

a male sheep or lamb that has not been castrated

• ram

• ewe

• wether

a female horse, four years of age or older

• gelding

• filly

• mare

a male bovine of any age that has not been castrated

• steer

• bull

• heifer

• cow

a male horse that has been castrated

• gelding

• mare

• stallion

• colt

a male sheep that has been castrated before reaching maturity

• wether

• ram

• ewe

• ewe lamb

a female horse under three years of age

• filly

• mare

• stallion

• gelding

an older female swine that has farrowed or is showing signs of pregnancy

• gilt

• farrow

• sow

• barrow

a young female swine that has not farrowed and is not pregnant

• gilt

• sow

• boar

• barrow

Mature male porcine

• Bull

• Buck

• Ram

• Boar