Satellite Symposium 2: Silage
Description
The efficiency of utilisation of N for milk production in dairy cows is often less than 25% and a shortfall in readily available carbohydrate to provide substrate for microbial growth is often cited as a potential problem. Grasses bred for their high water soluble carbohydrate (WSC) content have potential to address this issue but there is limited information on the level of sugar required to optimise rumen microbial growth efficiency. The objective of this experiment was to examine the effect of different concentrations of WSC on the efficiency of use of grass silage N under in vitro conditions.
Citation
Davies, D. R.; Leemans, D. K.; and Merry, R. J., "Effect of Supplementing Grass Silage with Incremental Levels of Water Soluble Carbohydrate on in Vitro Rumen Microbial Growth and N Use Efficiency" (2023). IGC Proceedings (1989-2023). 29.
https://uknowledge.uky.edu/igc/20/satellitesymposium2/29
Included in
Agricultural Science Commons, Agronomy and Crop Sciences Commons, Plant Biology Commons, Plant Pathology Commons, Soil Science Commons, Weed Science Commons
Effect of Supplementing Grass Silage with Incremental Levels of Water Soluble Carbohydrate on in Vitro Rumen Microbial Growth and N Use Efficiency
The efficiency of utilisation of N for milk production in dairy cows is often less than 25% and a shortfall in readily available carbohydrate to provide substrate for microbial growth is often cited as a potential problem. Grasses bred for their high water soluble carbohydrate (WSC) content have potential to address this issue but there is limited information on the level of sugar required to optimise rumen microbial growth efficiency. The objective of this experiment was to examine the effect of different concentrations of WSC on the efficiency of use of grass silage N under in vitro conditions.
