Impact on digestibility, and blood and fecal parameters of replacing wheat bran with corn gluten meal in concentrate of adult horses

• Digestibility was unaffected by including corn gluten meal in the concentrate.
• Fecal parameters were unaffected by inclusion of corn gluten meal in the concentrate.
• Blood triglyceride decreased with corn gluten meal inclusion in the concentrate.

The objective of this study was to assess the impact of replacing wheat bran with increasing levels (10%, 20% and 30%) of corn gluten meal 21 (CGM 21) in the concentrate of adult horses. Four adult horses were used in a 4×4 Latin square designed experiment. Total tract apparent digestibility (TTAD), and selected fecal (pH, buffering capacity, concentration of short-chain fatty acids) and blood (glucose, cholesterol, triglycerides) parameters were used as response parameters. The results showed that replacing wheat bran with CGM 21 did not affect (p>0.05) TTAD, fecal pH, fecal buffering capacity, fecal concentration of short chain fatty acids or blood glucose. However, blood cholesterol and triglycerides decreased (p<0.05) with increasing levels of CGM 21 in the concentrate.