颁布单位：[University of the Free State] |  颁布时间：2017 |  实施时间：2017 |  学科分类：[["Dairy, cows","Feedlot, system","Geophagy","Mineral, deficiency","Macro, and, micro, elements","Mineral, supplement","Free-choice, mineral, selection","Dairy, cattle, --, Feeding, and, feeds","Feedlots","Dissertation, (M.Sc., (Zoology, and, Entomology))--University, of, the, Free, State,, 2017"]]

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颁布单位：[University of the Free State] |  颁布时间：2010 |  实施时间：2010 |  学科分类：[["Beef, cattle, --, Feeding, and, feeds","Proteins, in, animal, nutrition","Urea, as, feed","Fiber, in, animal, nutrition","Ingestion","Rumen, degradable, protein","Roughage","Intake","Digestibility","Dissertation, (M.Sc.Agric., (Animal,, Wildlife, and, Grassland, Sciences))--University, of, the, Free, State,, 2010"]]

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颁布单位：[University of the Free State] |  颁布时间：2005 |  实施时间：2005 |  学科分类：[["Beef, cattle, --, Feeding, and, feeds","Nitrogen, in, animal, nutrition","Fiber, in, animal, nutrition","Dissertation, (M.Sc.Agric., (Animal,, Wildlife, and, Grass, Sciences))--University, of, the, Free, State,, 2005"]]

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颁布单位：[University of the Free State] |  颁布时间：1988 |  实施时间：1988 |  学科分类：[["Calves, --, Feeding, and, feeds","Holstein-Friesian, cattle","Beef, cattle, --, Feeding, and, feeds","Dissertation, (M.Sc.Agric., (Animal, Science))--University, of, the, Free, State,, 1988"]]

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颁布单位：[University of the Free State] |  颁布时间：1987 |  实施时间：1987 |  学科分类：[["Holstein-Friesian, cattle, --, Feeding, and, feeds","Calves, --, Feeding, and, feeds","Beef, cattle, --, Feeding, and, feeds","Beef, cattle, --, Carcasses","Dissertation, (M.Sc.Agric., (Animal, Science))--University, of, the, Free, State,, 1987"]]

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颁布单位：[University of the Free State] |  颁布时间：1987 |  实施时间：1987 |  学科分类：[["Calves","Calves, --, Feeding, and, feeds","Beef, cattle, --, Carcasses","Beef, cattle, --, Feeding, and, feeds","Dissertation, (M.Sc.(Agric., (Animal, Science))--University, of, the, Free, State,, 1987"]]

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颁布单位：[University of the Free State] |  颁布时间：1974 |  实施时间：1974 |  学科分类：[["Dairy, cattle, --, Feeding, and, feeds","Holstein-Friesian, cattle","Milk, yield","Thesis, (Ph.D., (Animal, Science))--University, of, the, Free, State,, 1974"]]

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