Brief information of PHD thesis: Using several plant leaves contain tannin in the diet for minimize methane emission in beef cattle

The thesis has identified the chemical composition, nutritional value of several tannin-fed leaf tops common in Vietnam and the effects of the source and the level of each type of plant to the substrate on the rate and in vitro gas characterization, methane production, in vitro digestibility, energy value (ME) and short-chain fatty acid content.