454 for Feedlot Cattle Trial

Trial Overview:

This trial evaluated 454 as a heat-abatement feed additive in feedlot cattle after consistent temperature-response results were observed with AP-5 in fescue-fed cattle.

Cattle Evaluated For:

Dry matter intake
Average daily gain
Feed conversion
Cost of gain
Heat-related feed intake stability

Feeding Objective:

3.0–3.5 lb ADG and 2.5% bodyweight dry matter intake

Trial Type:

Feedlot Comparison

Environment:

Summer (80–102°F)

Seasonal Benchmark:

Winter target: 4.5–5.0 lb ADG and near 3.0% bodyweight intake

Trial Performance Summary

The pens receiving 454 maintained dry matter intake above 2.75% of body weight and achieved 4.5 to 5.0 lb average daily gain under summer conditions. Cattle receiving 454 remained on feed during heat events, while the non-454 pens went off feed.

Dry Matter Intake

Bodyweight intake maintained under summer heat

Average Daily Gain

lbs/day

Per head per day in the 454 pens

Control ADG

lbs

Average daily gain in the non-454 group

Stayed on Feed

454 group maintained feed intake when controls went off feed

454 for Feedlot Cattle Trial Results

This dataset represents a commercial feedlot comparison conducted in central Kansas to evaluate 454 under summer heat conditions. Two small feedyards each provided two pens of cattle for comparison: one pen fed 454 and one pen without 454. The objective was to evaluate dry matter intake, average daily gain, and feed performance during heat stress.

Trial interpretation

This feedlot comparison suggests that 454 helped maintain intake and performance under summer heat conditions. The 454 group achieved higher average daily gain, improved dry matter conversion, and lower cost of gain, while also remaining on feed during heat events when the control pens did not.