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A Feeding Trial to Investigate Strategies to Mitigate the Impacts of Pimelea Poisoning in Australian Cattle

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Hungerford, N. L., Ouwerkerk, D., Gilbert, R. A., Loh, Z. H., Gordon, R. J., Silva, L. F. P. and Fletcher, M. T. (2024) A Feeding Trial to Investigate Strategies to Mitigate the Impacts of Pimelea Poisoning in Australian Cattle. Journal of Agricultural and Food Chemistry, 72 (28). p. 15572. ISSN 0021-8561

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Article Link: https://doi.org/10.1021/acs.jafc.4c02082

Abstract

Pimelea poisoning of cattle causes distinct symptoms and frequently death, attributable to the toxin simplexin. Pimelea poisoning was induced via addition of ground Pimelea trichostachya plant to the daily feed in a three-month trial with Droughtmaster steers. The trial tested four potential mitigation treatments, namely, biochar, activated biochar, bentonite, and a bacterial inoculum, and incorporated negative and positive control groups. All treatments tested were unable to prevent the development of simplexin poisoning effects. However, steers consuming a bentonite adsorbent together with Pimelea showed lesser rates-of-decline for body weight (P < 0.05) and four hematological parameters (P < 0.02), compared to the positive control group fed Pimelea only. Microbiome analysis revealed that despite displaying poisoning symptoms, the rumen microbial populations of animals receiving Pimelea were very resilient, with dominant bacterial populations maintained over time. Unexpectedly, clinical edema developed in some animals up to 2 weeks after Pimelea dosing was ceased.

Item Type:Article
Corporate Creators:Department of Agriculture and Fisheries, Queensland
Business groups:Animal Science
Additional Information:Journal article not Open Access. Supplementary material on Figshare at https://doi.org/10.1021/acs.jafc.4c02082.s001
Keywords:Pimelea, simplexin, plant toxin, mass spectrometry, metabolite, rumen, adsorbent, biochar, bentonite
Subjects:Animal culture > Cattle
Veterinary medicine > Veterinary microbiology
Veterinary medicine > Veterinary toxicology
Animal culture > Rangelands. Range management. Grazing
Animal culture > Feeds and feeding. Animal nutrition
Agriculture > By region or country > Australia
Live Archive:26 Jul 2024 06:18
Last Modified:13 Oct 2024 23:12

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