Effect of processed cereal grains as a supplement on grass intake, rumen pool sizes, ruminal kinetics and the performance of grazing lactating dairy cows

R. Tothi, R.H. Zhang, P. Chilibroste, H. Boer, S. Tamminga

Research output: Contribution to journalArticleAcademicpeer-review

3 Citations (Scopus)

Abstract

Five multiparous lactating Holstein-Friesian dairy cows fitted with rumen cannula were allowed to graze perennial ryegrass swards. Next to a control treatment of grazing only, pelleted barley (PB), pelleted maize (PM), toasted and subsequently pelleted barley (TPB), and toasted and subsequently pelleted maize (TPM) were fed as a supplement in two equal portions. Before and after 3 h of grazing the rumen content was evacuated, weighed, sampled and returned to the animals. Then the cows were kept inside the barn and starved for 6 h, after which rumen evacuations were repeated. The estimated clearance rates of starch showed significant differences (P
Original languageEnglish
Pages (from-to)417-433
JournalJournal of Animal and Feed Sciences
Volume12
DOIs
Publication statusPublished - 2003

Keywords

  • milk urea nitrogen
  • concentrate supplementation
  • ingestive behavior
  • herbage intake
  • feed-intake
  • nutrition
  • starch
  • degradation
  • digestion
  • allowance

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