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Experience of Some Iowa Farmers with Cattle Feeding

出版	Agricultural Experiment Station, Agricultural Extension Service, Iowa State College, 1941
URL	http://books.google.com.hk/books?id=HhsiAQAAMAAJ&hl=&source=gbs_api

註釋"The cattle feeder's main purpose is to get the largest possible returns from his cattle with the amount of feed, capital and labor that he has available. Naturally returns from the farm as a whole are more important than the success of any one enterprise, but the management of the entire farm involves many more questions than we can discuss adequately in this short bulletin. Therefore, we shall simply present information obtained in 1938 and 1939 on the more common methods of Iowa cattle feeders. Results will be discussed solely on the basis of the cattle-feeding enterprise itself." -- p. [193]