Impact of Feeding Aspergillus Subspecies Blend and Di! erent Corn Processing Methods on Finishing Beef Cattle Performance and Carcass Characteristics

A feedlot study utilizing 320 crossbred calf- fed steers (initial body weight 588 lb) compared the effect of feeding an Aspergillus additive in either dry- rolled corn or high- moisture corn finishing diets on cattle performance and carcass characteristics. Steers were fed 0 g/steer daily or 10 g/steer daily Aspergillus for both corn processing methods. # ere were no significant interactions between corn processing method and Aspergillus. Feeding finishing cattle Aspergillus did not impact performance compared to feeding none. Cattle fed dry- rolled corn had greater final body weight, dry matter intake, and gain compared to high- moisture corn diets. But cattle fed high- moisture corn had a 6.25% decrease in feed- to- gain compared to dry- rolled corn. These data suggest that feeding Aspergillus does not affect performance. The lower dry matter intake and average daily gain observed would suggest a potential acidosis problem for high- moisture corn compared to dry- rolled corn- based finishing diets