Effect of dietary SCFA on microbial protein synthesis and urinal urea-N excretion is related to microbiota diversity in rumen

摘要

Urinal urea-N excretion (UUN) increases the cost of livestock production and causes environmental pollution. In ruminant animals the fractions of urea entry transferred to the gut or excreted in the urine are related in a reciprocal manner. The present study aimed to 1) understand the effects of dietary NFC-SCFA on urea-N utilization and UUE; 2) elucidate the relationship between ruminal SCFA and microbiota diversity.