| http://www.w3.org/ns/prov#value | - I did my PhD on that area with Dr. Larry Muller and Gaby Varga at PSU. It is very importance to remember that the NRC is not only the main guide to feed cows in the US, but also out of the US in countries such as New Zealand, Australia, South Africa, Costa Rica, Colombia, Ecuador, Chile, Argentina, and Uruguay where most of the dairy systems use pastures supplemented with concentrates and conserve
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