英文關鍵字
algae
american
animal
aviculture
barn
barndoor
bionomics
bird
breed
breeding
brown
canada
cholera
cleaning
cleans
contamination
crassipes
domestic
door
duck
ducks
ecology
eichhornia
eutrophication
farm
farming
feed
feet
fowl
gallinarium
grows
husbandry
hyacinth
industry
invasive
keeping
macrophyte
macrophytes
meat
organic
peking
phosphates
pollution
pond
poultry
reservoir
species
thailand
utrophication
vegetation
water
weed
white