Effect of a novel alkaline protease from Bacillus licheniformis on growth performance, carcass characteristics, meat quality, antioxidant capacity, and intestinal morphology of white feather broilers.

Background: The present study was conducted to investigate the effects of dietary novel alkaline protease from Bacillus licheniformis on the growth performance, meat quality, antioxidant status and intestinal morphology of broilers. In total, 4000 broilers were randomly assigned into five groups and treated with normal control, normal control + 100 mg kg protease, normal control + 200 mg kg protease, normal control + 300 mg kg protease and normal control + 400 mg kg protease.

Results: Supplementing protease impacted final body weight (linear, P = 0.