UNL student analyzes variable feedlot diets

By Scout Nelson

Paige Madison, a master’s student in the Ruminant Nutrition department at the University of Nebraska-Lincoln (UNL), is researching how different levels of modified distillers grains in feedlot diets affect cattle health.

Her research examines the impact of feeding variable amounts of these grains, a byproduct of ethanol production, which provides essential energy and protein to cattle.

Madison’s interest in animal nutrition began during her undergraduate studies and was strengthened by a feedlot internship. She was particularly drawn to UNL’s facilities and renowned faculty, especially with the recent opening of the Klosterman Feedlot Innovation Center, where she now conducts her research.

Her study addresses the inconsistency in distillers grains supply since COVID, which has led to interruptions in feedlot diets. “We wanted to see what it would do to the cattle if producers ran out of distillers and had to pull it out of the diet and then a week later, they got a delivery and could put the full inclusion back into the diet,” Madison explained.

Inconsistent diets can lead to ruminal acidosis, a condition where the rumen’s pH drops too low, negatively affecting cattle health and performance. This study’s findings aim to provide guidance for managing feedlot diets when distillers grains availability is uncertain.

Madison’s current phase of research examines diets with 10% and 25% distillers inclusion, comparing constant versus variable feeding levels and a corn-based control. Results thus far show no significant differences in cattle performance, an unexpected outcome.

This winter, Madison will begin a third research phase using advanced technology to monitor pH levels in the rumen with Insentec technology feed bunks at the Klosterman Innovation Center. This phase will provide further insight into potential acidosis risks under variable feed conditions.

After graduation, Madison hopes to pursue a doctorate or work in Extension or the livestock industry, with a goal of supporting producers and livestock. “I love both the people and animal aspects of things in the agricultural industry,” she said.

Photo Credit:gettyimages-ahavelaar