Sentence:  At a later stage we may presume that other plants were found useful, such as the artificial fodder plants which began to be cultivated for cattle when the purely pastoral system of husbandry by nomad tribes came to an end, just as cattle <WSD>ranchings</WSD> will do in America at no distant date, it is said. 
Meaning of the word marked with <WSD> tags:  A ranch.