Abstract
Effects of different proportions of dietary structural and nonstructural carbohydrates on ruminal fermentation and microbial growth efficiency in sheep
Highlights
The dietary fibre composition, specially the content and proportion of structural carbohydrates (SC, mainly cell wall carbohydrates) and nonstructural carbohydrates (NSC, including sugars, starch, organic acids and soluble fibre), which could alter the XIA Z.G., MENG Q.X.fermentable energy available for microbial protein (MCP) production, has raised interest in ruminal protein research (Meng et al, 1999; Bodine et al, 2001)
Increased dietary SC:NSC ratio resulted in a linear decrease in the digestilities of dry matter (DM) and organic matter (OM) (P
The result might be due to the lower digestibility of SC compared to NSC
Summary
The dietary fibre composition, specially the content and proportion of structural carbohydrates (SC, mainly cell wall carbohydrates) and nonstructural carbohydrates (NSC, including sugars, starch, organic acids and soluble fibre), which could alter the XIA Z.G., MENG Q.X. fermentable energy available for microbial protein (MCP) production, has raised interest in ruminal protein research (Meng et al, 1999; Bodine et al, 2001). Many studies regarding the dietary NSC to SC ratio have been done in dairy and beef cattle, but there is no information available on sheep. The objective of this study was to determine the effects of different proportions of dietary SC and NSC (ratio of SC:NSC) on ruminal fermentation characteristics and microbial growth efficiency in sheep
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