Effects of Mannan Oligosaccharides on Gas Emission Protein and Energy Utilization and Fasting Metabolism in Sheep

摘要

Mannan oligosaccharides (MOS) are a promising feed additive to improve animal health, immune capacity, and antioxidation. Based on the previous studies, we carried out three experiments to investigate the effects of MOS on the gas emission, protein and energy utilization, and fasting metabolism of sheep. The results showed that 2.0% MOS supplementation led to the lowest CO production and lower CH production and decreased intake. However, it also decreased urine nitrogen excretion and energy released as CH , and then improved the utilization of crude protein and energy of sheep. There were no differences in the parameters of respiration and energy metabolism of sheep under the fasting condition. The findings indicated that MOS slightly affected the gas emission and nutrients and energy utilization of sheep.