Development of a model for investigation of perennial ryegrass toxicosis in sheep

References

• *Blythe L, Estill C, Males J, Craig A. Determination of the toxic threshold of lolitrem B in cattle eating endophyte-infected perennial ryegrass. Proceedings of the 6th International Symposium on Fungal Endophytes of Grasses. Pp 399–402, 2007
   Google Scholar
• Brown JL, Wasser SK, Wildt DE, Graham LH. Comparative aspects of steroid hormone metabolism and ovarian activity in felids, measured noninvasively in feces. Biology of Reproduction 51, 776–86, 1994 doi: 10.1095/biolreprod51.4.776
   PubMed Web of Science ®Google Scholar
• Cheeke PR. Endogenous toxins and mycotoxins in forage grasses and their effects on livestock. Journal of Animal Science 73, 909–18, 1995 doi: 10.2527/1995.733909x
   PubMed Web of Science ®Google Scholar
• Combs MDA, Rendell D, Reed KFM, Mace WJ, Quinn JC. Evidence of dehydration and electrolyte disturbances in cases of perennial ryegrass toxicosis in Australian sheep. Australian Veterinary Journal 92, 107–13, 2014 doi: 10.1111/avj.12161
   PubMed Web of Science ®Google Scholar
• Finnie JW, Windsor PA, Kessell AE. Neurological diseases of ruminant livestock in Australia. I: general neurological examination, necropsy procedures and neurological manifestations of systemic disease, trauma and neoplasia. Australian Veterinary Journal 89, 243–6, 2011 doi: 10.1111/j.1751-0813.2011.00792.x
   PubMed Web of Science ®Google Scholar
• Fletcher LR, Finch SC, Sutherland BL, deNicolo G, Mace WJ, van Koten C, Hume DE. The occurrence of ryegrass staggers and heat stress in sheep grazing ryegrass-endophyte associations with diverse alkaloid profiles. New Zealand Veterinary Journal, 65, 232–41, 2017 doi: 10.1080/00480169.2017.1329673
   PubMed Web of Science ®Google Scholar
• Gallagher RT, White EP, Mortimer PH. Ryegrass staggers: isolation of potent neurotoxins lolitrem A and lolitrem B from staggers-producing pastures. New Zealand Veterinary Journal 29, 189–90, 1981 doi: 10.1080/00480169.1981.34843
   PubMed Web of Science ®Google Scholar
• Gallagher RT, Smith GS, di Menna ME, Young PW. Some observations on neurotoxin production in perennial ryegrass. New Zealand Veterinary Journal 30, 203–4, 1982a doi: 10.1080/00480169.1982.34942
   PubMed Web of Science ®Google Scholar
• Gallagher RT, Campbell AG, Hawkes AD, Holland PT, McGaveston DA, Pansier EA, Harvey IC. Ryegrass staggers: The presence of lolitrem neurotoxins in perennial ryegrass seed. New Zealand Veterinary Journal 30, 183–4, 1982b doi: 10.1080/00480169.1982.34936
   PubMed Web of Science ®Google Scholar
• Gallagher RT, Hawkes AD, Steyn PS, Vleggaar R. Tremorgenic neurotoxins from perennial ryegrass causing ryegrass staggers disorder of livestock: structure elucidation of lolitrem B. Journal of the Chemical Society, Chemical Communications 9, 614–6, 1984 doi: 10.1039/c39840000614
   Google Scholar
• *Johnstone LK. Clinical expression of perennial ryegrass (lolitrem-B) intoxication in New Zealand horses. MVS thesis, Massey University, Palmerston North, NZ, 2010
   Google Scholar
• Johnstone LK, Mayhew IG, Fletcher LR. Clinical expression of lolitrem B (perennial ryegrass) intoxication in horses. Equine Veterinary Journal 44, 304–9, 2012 doi: 10.1111/j.2042-3306.2011.00439.x
   PubMed Web of Science ®Google Scholar
• Kheradmand A, Zee DS. Cerebellum and ocular motor control. Frontiers in Neurology 2, 53, 2011 doi: 10.3389/fneur.2011.00053
   PubMedGoogle Scholar
• Knott SA, Cummins LJ, Dunshea FR, Leury BJ. Feed efficiency and body composition are related to cortisol response to adrenocorticotropin hormone and insulin-induced hypoglycemia in rams. Domestic Animal Endocrinology 39, 137–46, 2010 doi: 10.1016/j.domaniend.2010.03.003
   PubMed Web of Science ®Google Scholar
• Komarova EL, Tolkachev ON. The chemistry of peptide ergot alkaloids. Part 1. Classification and chemistry of ergot peptides. Pharmaceutical Chemistry Journal 35, 504–13, 2001 doi: 10.1023/A:1014050926916
   Google Scholar
• Mackintosh CG, Orr MB, Gallagher RT, Harvey IC. Ryegrass staggers in Canadian wapiti deer. New Zealand Veterinary Journal 30, 106–7, 1982 doi: 10.1080/00480169.1982.34899
   PubMed Web of Science ®Google Scholar
• *Mayhew JIG. Large Animal Neurology, 2nd Edtn. John Wiley and Sons Ltd, Oxford, UK, 2009
   Google Scholar
• McLeay L, Smith B. Effects of the mycotoxins lolitrem B and paxilline on gastrointestinal smooth muscle, the cardiovascular and respiratory systems, and temperature in sheep. New Zealand Grassland Association, Research and Practice Series, 11–7, 1999
   Google Scholar
• McLeay LM, Smith BL, Munday-Finch SC. Tremorgenic mycotoxins paxilline, penitrem and lolitrem B, the non-tremorgenic 31-epilolitrem B and electromyographic activity of the reticulum and rumen of sheep. Research in Veterinary Science 66, 119–27, 1999 doi: 10.1053/rvsc.1998.0253
   PubMed Web of Science ®Google Scholar
• McLeay LM, Smith BL, Reynolds GW. Cardiovascular, respiratory, and body temperature responses of sheep to the ergopeptides ergotamine and ergovaline. American Journal of Veterinary Research 63, 387–93, 2002 doi: 10.2460/ajvr.2002.63.387
   PubMed Web of Science ®Google Scholar
• Munday-Finch SC. Aspects of the chemistry and toxicology of indole-diterpenoid mycotoxins involved in tremorganic disorder of livestock. Mycotoxin Research 13, 88, 1997 doi: 10.1007/BF02945071
   PubMedGoogle Scholar
• Musk GC, Murdoch FR, Tuke J, Kemp MW, Dixon MJ, Taylor PM. Thermal and mechanical nociceptive threshold testing in pregnant sheep. Veterinary Anaesthesia and Analgesia 41, 305–11, 2014 doi: 10.1111/vaa.12103
   PubMed Web of Science ®Google Scholar
• Narayan EJ, Webster K, Nicolson V, Mucci A, Hero J-M. Non-invasive evaluation of physiological stress in an iconic Australian marsupial: the koala (Phascolarctos cinereus). General and Comparative Endocrinology 187, 39–47, 2013 doi: 10.1016/j.ygcen.2013.03.021
   PubMed Web of Science ®Google Scholar
• Reed KFM, Cummins LJ, Moore DD, Clark AJ. Performance of Coopworth ewe lambs exposed to low levels of ryegrass endophyte (Neotyphodium lolii) alkaloids and allowed access to a mycotoxin deactivator. Animal Production Science 51, 225–32, 2011a doi: 10.1071/AN10090
   Web of Science ®Google Scholar
• Reed KFM, Nie ZN, Walker LV, Mace WJ, Clark SG. Weather and pasture characteristics associated with outbreaks of perennial ryegrass toxicosis in southern Australia. Animal Production Science 51, 738–52, 2011b doi: 10.1071/AN11016
   Web of Science ®Google Scholar
• Reed KFM, Mace WJ, Walker LV, Fletcher LR. Endophyte metabolites associated with perennial ryegrass toxicosis. Animal Production Science 56, 895–907, 2016 doi: 10.1071/AN14495
   Web of Science ®Google Scholar
• Rohrbach H, Zeiter S, Andersen OK, Wieling R, Spadavecchia C. Quantitative assessment of the nociceptive withdrawal reflex in healthy, non-medicated experimental sheep. Physiology and Behavior 129, 181–5, 2014 doi: 10.1016/j.physbeh.2014.02.017
   PubMed Web of Science ®Google Scholar
• *Sackett DFJ. Economic assessment of the impact of wild endophyte-infected perennial ryegrass (Lolium perenne) on the productivity of sheep and cattle and the profitability of Australian livestock enterprises. https://www.mla.com.au/research-and-development/search-rd-reports/final-report-details/Animal-Health-and-Biosecurity/Economic-Assessment-of-the-Endophyte-Infected-Perennial-Ryegrass-on-Australian-Livestock-Producers/121 (accessed 12 June 2018) Meat and Livestock Australia Limited, North Sydney, Australia, 2006.
   Google Scholar
• Smith BL, McLeay LM, Embling PP. Effect of the mycotoxins penitrem, paxilline and lolitrem B on the electromyographic activity of skeletal and gastrointestinal smooth muscle of sheep. Research in Veterinary Science 62, 111–6, 1997 doi: 10.1016/S0034-5288(97)90130-2
   PubMed Web of Science ®Google Scholar
• *Non-peer-reviewed
   Google Scholar