Agricultural News
The Key Factors that Affect Dressing Percent and Their Impact on Cull Cow Marketing
Tue, 25 Oct 2016 09:30:38 CDT
Dr. Glenn Selk, Oklahoma State University Emeritus Extension Animal Scientist, offers herd health advice as part of the weekly series known as the "Cow Calf Corner" published electronically by Dr. Peel and Dr. Glenn Selk. Today, Dr. Selk discusses the impact of dressing percent on cull cow marketing.
"Last week's Cow-Calf Corner newsletter discussed cull cow grades. Remember cull cows that are destined to go to the packing house are graded by their fleshiness. The fattest cows are called "Breakers". Moderately fleshed cows are "Boners". Thin cows are called "Leans" or "Lights", depending upon the weight of the cow. Most years there will be price differences among these four grades. This fall, the price differences between grades (of average dressing percentage cows) seems to be narrowed.
"However, within each grade, large variation in prices per hundredweight will exist because of differences in dressing percentage. Cow buyers are particularly aware of the proportion of the purchased live weight that eventually becomes saleable product hanging on the rail. Dressing percentage is (mathematically) the carcass weight divided by the live weight multiplied by 100.
"Key factors that affect dressing percentage include gut fill, udder size, mud and manure on the hide, excess leather on the body, and anything else that contributes to the live weight but will not add to the carcass weight. Most USDA Market News reports for cull cows will give price ranges for High, Average, and Low Dressing Percents for each of the previous mentioned grades. As you study these price reports, note that the differences between High and Low Dressing cows and bulls will generally be greater than differences between grades. Many reports will indicate that Low Dressing cows will be discounted up to $10 to $14 per hundredweight compared to High Dressing cows and will be discounted $4 to $10 per hundredweight compared to Average Dressing cows. These price differences are usually widest for the moderate to thin cow grades (Boners, Leans and Lights). See examples from last week's sale in Oklahoma City National Stockyards, here.
"As producers market cull cows and bulls, they should be cautious about selling cattle with excess fill. The large discounts due to low dressing percent often will more than offset any advantage from the added weight."
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