Effect of grass species on release of cell components of freshly cut forage during mastication and ingestion

Type Conference Proceeding (Non-Journal item)
Original languageEnglish
Title of host publicationProceedings of the British Society of Animal Science
PublisherBritish Society of Animal Science
ISBN (Print)978-0 -906562-60-4
Publication statusPublished - 2008
EventBritish Society of Animal Science, Society's Annual Conference in Scarborough - Scarborough, United Kingdom of Great Britain and Northern Ireland
Duration: 31 Mar 200802 Apr 2008

Conference

ConferenceBritish Society of Animal Science, Society's Annual Conference in Scarborough
CountryUnited Kingdom of Great Britain and Northern Ireland
CityScarborough
Period31 Mar 200802 Apr 2008
Links
View graph of relations
Citation formats

Abstract

As grazing ruminants rely almost entirely on mastication to disrupt plant tissues, a series of processes
(mastication, bolus formation and ingestion) will impact on the viability and number of cells that remain intact, and
consequently alive, after ingestion (Kingston-Smith and Theodorou, 2000). Preliminary work in our group has shown
substantial variation in the degree of cell damage during mastication and ingestion between grass species, resulting in
differences in the rate of release of cell contents (protein, sugars and lipids) into the rumen (E.J. Kim, unpublished). These
differences may affect nutrient utilisation by ruminal micro-organisms. The aim of this study was to compare the extent of
nutrient release from three contrasting grass species following ingestion of the fresh forage by dairy cows.