英文關鍵字
agricultural
agriculture
animal
animalhusbandry
barn
boar
breed
closeup
dirty
domestic
domesticpig
eating
farm
farming
fat
feeding
funny
growth
head
hog
household
hungry
large
life
little
livestock
mammal
mother
one
outdoor
pig
piggy
piglets
pork
rural
snout
sow
suckling
white
yard