5-6. 沒有所謂好或壞的飼養系統，只有適合與否。禽舍系統並非僅有建築費用的考量，這涉及到許多因素，例如你有多少時間及你喜歡什麼樣型式的工作。 The choice of a husbandry system is not a purely financial one. There are many other factors involved, such as how much time you have and what sort of jobs you like to do.
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