Skip to main content

Fatty acid composition and nutritive value of twelve cultivars of perennial ryegrass

Buy Article:

$43.00 + tax (Refund Policy)

Abstract

A comparison was made of the fatty acid composition and nutritive value of twelve cultivars of perennial ryegrass (Lolium perenne L.) differing in heading date and ploidy level. The cultivars were sown in triplicate plots and three sequential cuts of herbage were taken at 20-d intervals during the late spring and early summer to describe the fatty acid composition and other measurements of nutritive value. Differences between cultivars were recorded for DM content (P <0·01) and concentrations of gross energy, neutral-detergent fibre (NDF) and ash (P <0·05). Diploid cultivars had a higher DM content and concentration of NDF (P <0·01) than tetraploid cultivars whilst late-heading date cultivars had the lower NDF (P <0·05), ADF and ash (P <0·01) concentrations. There was variation between cultivars in fatty acid composition. Diploid cultivars had a higher concentration of C18:0 (P <0·01) and C18:1 (P <0·05) than tetraploid cultivars and late-heading date cultivars had the highest concentrations of total fatty acids, C16:0, C18:2 and C18:3 (P <0·05). This was predominantly due to the cultivar Tyrella which is a diploid, late-heading cultivar. The study showed that some variation exists between perennial ryegrass cultivars in concentrations of polyunsaturated fatty acids, which may present opportunities to select for this trait, but further research on the developmental stages and degree of leafiness of cultivars is first required.
No References
No Citations
No Supplementary Data
No Article Media
No Metrics

Keywords: Lolium perenne cultivars; fatty acid composition; heading date; ploidy

Document Type: Research Article

Affiliations: 1: School of Agriculture, Food Science and Veterinary Medicine, University College Dublin, Belfield, Dublin, Ireland 2: Dairy Production Department, Teagasc Moorepark Research Centre, Fermoy, Co. Cork, Ireland

Publication date: 01 June 2009

  • Access Key
  • Free content
  • Partial Free content
  • New content
  • Open access content
  • Partial Open access content
  • Subscribed content
  • Partial Subscribed content
  • Free trial content
Cookie Policy
X
Cookie Policy
Ingenta Connect website makes use of cookies so as to keep track of data that you have filled in. I am Happy with this Find out more