This is the 2275th most frequent Japanese word.
酪農
Dairy farming.
The word '酪農' is used here to specify the practice of dairy farming as an activity that contributes to rural industry.
酪農は日本の地方で重要な産業です。
Dairy farming is an important industry in the rural areas of Japan.
In this context, '酪農' is part of '酪農学,' which refers to the academic study or curriculum related to dairy farming.
彼は大学で酪農学を専攻しました。
He majored in dairy farming studies at the university.
Here, '酪農場' uses '酪農' to describe a physical location, specifically a dairy farm where dairy farming is practiced.