英文關鍵字
agricultural
agriculture
animal
animals
baby
breeding
care
clip
contemporary
cote
domestic
equipment
examining
explosion
factory
farm
farming
farms
feeding
flu
for
genetic
group
growing
hog
husbandry
illness
industrial
industry
livestock
meat
men
mischievous
modern
occupation
pig
piggy
piglet
pigpen
pigs
population
potential
production
professional
protected
protective
responsibility
snout
sow
squeaker
stalls
sty
suit
swine
task
veterinary
video
wear
work
worker