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Articles written by Dr. Don Llewellyn


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  • Beef Cow Type Then and Now

    Dr. Don Llewellyn, Director, WSU Lincoln County Extension, Davenport, WA|Dec 28, 2023

    This month's article isn't so much a Mythbuster, but a retrospective on where we've been with cow type and the implications of the changes over time. As I write these lines it's only several days before Thanksgiving. It is the holiday season and in my line of work, it is really easy to find a lot of things to be thankful for and have hope for a great future in agriculture. I'm the eternal optimist, I also acknowledge that immense stressors are facing our agricultural producers. The holiday...

  • Beef cattle mythbuster: cow feed

    Dr. Don Llewellyn, Livestock Extension Specialist Director, WSU Lincoln County Extension|Sep 15, 2022

    Myth: It makes no difference if one calculates cow feed intake on a dry matter basis or an as-fed basis. Answer: Oh, but it does matter! Okay, here we go! This is one of those topics that probably caused more confusion among my students than most any question I asked them (or had them calculate on an exam!). Let’s make some practical sense of this and how it applies to the real world for cattle producers. Before we can address this concept, we define our terms: As-is (or as-fed) basis refers t...