Fig. 1From: Antimicrobial peptides act on the rumen microbiome and metabolome affecting the performance of castrated bullsScanning electron microscope and analysis of rumen papilla. A Scanning electron microscope image of rumen papilla and rumen micropapillary. B Rumen papilla diameter and ruminal micropapillary density. *P < 0.05, **P < 0.01Back to article page