Influence of the Ryegrass Endophyte on Sheep Production in a Cool-Moist Environment

  • J. P. J. Eerens
  • H. S. Easton
  • R. J. Lucas
  • J. G. H. White
  • K. B. Miller
Chapter

Abstract

Animal disorders associated with the ryegrass endophyte have been most severe in areas subjected to environmental stress (Fletcher et al., 1990). The use of endophyte-infected seed has increased throughout New Zealand since the early 1980s. Eerens et al. (1997) showed that endophyte has little effect on pasture production and composition in cool-moist environments and the need for it was therefore questioned. Ryegrass staggers and faecal soiling of wool on sheep in cool-moist areas of the South Island of NZ are considered to have increased over time (J.D. Turner, pers. comm.).

Keywords

White Clover Tall Fescue Faecal Soiling Sheep Production Clover Treatment 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

Preview

Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.

References

  1. Bond, J., G.P. Lynch, D.J. Bolt, H.W. Hawk, C. Jackson, Jr. and R.J. Wall. 1988. Reproductive performance and lamb weight gains for ewes grazing fungus-infected tall fescue. Nutr. Rep. Int. 37: 1099–1115.Google Scholar
  2. Di Menna, M.E., P.H. Mortimer, R.A. Prestidge, A.D. Hawkes and J.M. Sprosen. 1992. Lolitrem B concentrations, counts of Acremonium lolii hyphae, and the incidence of ryegrass staggers in lambs on plots of A. Lolii-infected perennial ryegrass. NZ J. of Agr. Res. 35: 211–217.CrossRefGoogle Scholar
  3. Eerens, J.P.J. 1996. The ryegrass endophyte in a cool-moist environment. Ph. D. thesis. Lincoln University. New Zealand. 191 pp.Google Scholar
  4. Eerens, J.P.J., H.S. Easton, R.J. Lucas, J.G.H. White and K.B. Miller. 1997. Influence of the ryegrass endophyte on pasture production and composition in a cool-moist environment. Proceedings of the third International Symposium on Acremonium/Grass Interactions: this proceedings.Google Scholar
  5. Fletcher, L.R., J.H. Hoglund and B.L. Sutherland. 1990. The impact of Acremonium endophytes in New Zealand, past, present and future. Proc. NZ Grassland Ass. 52: 227–235.Google Scholar
  6. Monroe, J.L., D.L. Cross, L.W. Hudson, D.M. Hendricks, S.W Kennedy, T.C. Jenkins and W.C. Bridges, Jr. 1988. Effect of selenium and endophyte-contaminated fescue on performance and reproduction in mares. J. Equine Vet. Sci. 8: 148–153.CrossRefGoogle Scholar

Copyright information

© Springer Science+Business Media New York 1997

Authors and Affiliations

  • J. P. J. Eerens
    • 1
  • H. S. Easton
    • 2
  • R. J. Lucas
    • 3
  • J. G. H. White
    • 3
  • K. B. Miller
    • 1
  1. 1.AgResearch GoreNew Zealand
  2. 2.AgResearch GrasslandsPalmerston NorthNew Zealand
  3. 3.Plant Science DepartmentLincoln UniversityLincolnNew Zealand

Personalised recommendations