Evaluation of Black Soldier Fly larvae () as a protein supplement for beef steers consuming low-quality forage.

Black Soldier Fly larvae (BSFL; ) has been the focus of recent feeding trials in poultry, swine, and fish; however, in vivo research has not yet been conducted in cattle. Accordingly, a study was conducted to evaluate the effects of BSFL as a protein supplement in beef steers. Six steers (603 ± 20 kg of BW, = 3 and 404 ± 17 kg of BW, = 3) consuming King Ranch bluestem hay (6.