As previously stated “the objective of feeding a total mixed ration (TMR) is to provide a consistently uniform mix, with the intended ingredient and nutrient composition, across the entire length of the feedbunk with every batch.” And while a number of factors such as ingredient variability and moisture content, consistency of mixing procedures, operator error, and weighing system variability contribute to batch-to-batch variation, it is the characteristics of the mixer itself that essentially control within batch variation, and uniformity across the feedbunk. In this article we will discuss TMR mixer characteristics that affect mix uniformity and a sieving technique that can be used to evaluate it and make adjustments to improve animal performance.
The objective of feeding a total mixed ration (TMR) is to provide a consistently uniform mix with the intended ingredient and nutrient composition, across the entire length of the feedbunk, with every batch. The scale system on the TMR mixer determines whether the correct amount of each ingredient is added to the mixer, yet its operation and accuracy is often taken for granted. In this issue, we will describe how the TMR mixer scale system can be a source of error in TMR production, and present some simple tests you can perform to determine its sensitivity and accuracy.
We know you want the best nutrition possible for your herd and your operation, but we also know that there are a lot of options out there when it comes to TMR (total mixed rations) mixers. We’ve compiled some options that are on the marketplace today – whether you’re looking for a mixer that can be hauled with a truck, a tractor, or one that’s in a fixed location, we want to help you make the best decision for your cattle and your situation.