Feed Lot

MAR 2018

Feedlots and cow/calf operations in the beef industry who feed 500 or more has annually on grains and concentrates; maintain 500 or more beef cows; backgrounder, stocker/grower, preconditioner; veterinarian, nutritionist, consultant

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or protein source dependent upon the inclusion level. In a study con- ducted at the University of Nebras- ka-Lincoln by Jolly et al. (2013), de- oiled wet distillers grains plus s olubles (7.9% fat) was compared t o normal distillers (12.4% fat) and fed in finishing rations to yearling steers at 35%, 50%, or 65% of the ra- tion on a DM basis. In this study, they reported that regardless of distillers grains inclu- sion level, oil removal had no sig- nificant effect on gain, feed con- version, or carcass characteristics. The same research group conduct- ed an additional study with calf-fed steers comparing de-oiled (7.2% fat) to normal (12.0% fat) modified distillers grains plus solubles in fin- ishing rations. As the inclusion lev- el of de-oiled distillers grains in- creased from 0 to 60% of the ration on a DM basis, feed conversion im- proved as expected. When distillers grains were fed at 15% of the ration, no performance or carcass differences were ob- served between distillers grains fat levels. However, when fed at 30% of the ration, feed conversion was im- p roved approximately 3.5% for cat- t le fed the full-fat distillers grains. Likewise, data from the Univer- sity of Minnesota evaluating multi- ple finishing cattle trials with vary- ing distillers grains inclusions and fat levels indicates that reducing oil from the distillers does reduce energy value dependent on level fed in the ration. Burhoop et al. (2017) conducted a trial evaluating 40% de-oiled distillers grains (8.9% fat), 40% full fat distillers grains (11.6% fat) and 38% de-oiled dis- tillers grains with 2% added corn oil in a finishing ration. Dietary fat was formulated to be equal be- tween the full-fat distillers grains and the de-oiled distillers grains with added corn oil; however, ac- tual lab analysis showed that the de-oiled distillers grains with added corn oil had 0.68% more dietary fat. When comparing the de-oiled distillers to the full-fat FEED•LOT  March 2018 7 u 1-800-536-8438 " We can customize a system t o meet your needs." ❖ Platform Scales (10 sizes/self-contained) ❖ Single Animal W eigh Cage ( self-contained) ❖ Single Animal Scales ( under squeeze chutes) ❖ Portable Calf Scales (3 designs for various weights) ❖ Hay Processor Scales

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