鸡吃虫子。
更进一步讲,扩大庭院养殖规模几乎是不可能的。 鸡可吃的虫子就那么多,每个农户可以照看的鸡的数量也有限。
Moreover, it is almost impossible to scale up a farmyard operation: there are only so many insects to eat, and so many hens one family can look after.
牛羊需要监看和照料,鸡喜欢吃虫子,鹅和鸭在水边啃食植物。
Flocks and herds can be observed, and managed accordingly. Chickens will eat bugs, relish them, and ducks and geese nibble on plants along the waters edge.
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