Oklahoma's Latest Farm
And Ranch News
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Wednesday, September 18, 2024 | | | |
David Lalman Spotlights Estimating Feed Intake in Beef Cows |
Dr. David Lalman, Oklahoma State University Professor and Harrington Chair, Extension Beef Cattle Nutrition Specialist regularly offers reports as part of the weekly series known as the “Cow Calf Corner." Today, Dr. Lalman is addressing feed intake for mama cows.
An accurate estimate of feed intake is a critical element in determining a cow’s nutrient requirements at different stages of production. It is also necessary to establish appropriate stocking rate and carrying capacity of a given land base. For those reasons the National Academy of Sciences, Engineering and Medicine developed and published an equation in 1996 to predict feed intake in beef cows (Nutrient Requirements of Beef Cattle, Seventh Revised Edition).
One of our recent master’s degree graduates, Megan Gross, reviewed the literature from which this important equation was developed. From her findings, Megan identified several important points. First, the equation was developed using beef cow intake data published between 1979 and 1993. Certainly, the U.S. cattle population has changed considerably since then. Second, the equation relies on numerous experiments where indigestible markers (such as chromic oxide or alkanes) were used to predict feed intake. This technique is a reasonably reliable method to rank animals or treatment on a relative basis, but it tends to underestimate feed intake. Another issue with the marker-based data is that feed intake is estimated for only a short period of time; usually around five to seven days. Currently, the Beef Improvement Federation is recommending a minimum period of 42 days to ensure 35 days of high-quality feed intake data.
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Podcasts From Oklahoma Farm Report and More | |
Two of our regular reports are also podcasts that you can subscribe to- Our daily Farm and Ranch News with KC Sheperd- available here on the Apple Podcast Platform
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Ron has also has a series of podcasts from interviews with newsmakers at the Cattlemen's Congress- Click here or you can find them on your favorite Podcast platform- look for them by searching for Cattlemen's Congress Conversations.
We are making plans to jump back into regular installments of what has been called the Road to Rural Prosperity- a new name and fresh content is in the works- for now- click on the blue button below for one of our favorites that is a timeless classic.
The link below is one of our most recent podcasts- Ron spotlighting the Life and Times of Dr. Kim Anderson, who has just retired from OSU.
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Our thanks to Midwest Farms Shows, P & K Equipment, Oklahoma Farm Bureau, Oklahoma Ag Mediation Program, Great Plains Kubota, Stillwater Milling Company, National Livestock Credit Corporation, Oklahoma Beef Council, Oklahoma Wheat Commission, Oklahoma AgCredit, the Oklahoma Cattlemens Association, Invenergy Oklahoma and KIS Futures for their support of our daily Farm News Update.
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Reach Out To Us:
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Tim West
President/General Manager
Rural Oklahoma Networks
405-317-6361
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Mike Henderson
Director of Sales
405-615-4922
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KC Sheperd
Farm Director
Radio Oklahoma Ag Network
405-443-5717
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Senior Farm/Ranch Broadcaster
Radio Oklahoma Ag Network
405.473.6144
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