- walk-through feeding station
- wall chimney
- wall fastening
- wall inlet
- warm air
- wash water
- washer unit
- waste water
- water
- water column
- water connection unit
- water container
- water purification
- water purification device
- water separator
- water supply
- water-cooled perch
- wattle
- wean
- weaned sow
- weaner
- weaner pen
- weaners
- weaning
- weaning age
- weaning date
- weaning dip
- weaning weight
- week of age
- weep hole
- weigh bar
- weighing box
- weighing cage
- weighing camera
- weighing unit
- weight control
- weight loss
- welded manure belts
- welfare of hens
- wet feed
- wet feed
- wet feeder
- wet milling
- WFL
- wheat
- wheat bran
- wheeze
- whisk aeration
- wide meshed
- width of house
- winch up (to the ceiling)
- wind bracing
- wind deflector
- wind deflector
- wind velocity
- windchill
- windchill temperature
- winter garden
- wire floor tier
- wire flooring
- wire flooring level
- wire mesh
- wire partition
- wire ring
- with holes
- wood chips
- wooden perch
- working range
- worm infestation
- worming