Exploring the anthelmintic properties of Australian native shrubs with respect to their potential role in livestock grazing systems

@article{Kotze2009ExploringTA,
  title={Exploring the anthelmintic properties of Australian native shrubs with respect to their potential role in livestock grazing systems},
  author={Andrew C. Kotze and J. E. O'grady and Jason Emms and Andrew F. Toovey and S. Hughes and Peter J Jessop and M. R. Bennell and Philip E. Vercoe and Dean Kingsley Revell},
  journal={Parasitology},
  year={2009},
  volume={136},
  pages={1065 - 1080}
}
SUMMARY We measured in vitro anthelmintic activity in extracts from 85 species of Australian native shrub, with a view to identifying species able to provide a degree of worm control in grazing systems. Approximately 40% of the species showed significant activity in inhibiting development of Haemonchus contortus larvae. The most active extracts showed IC50 values of 60–300 μg/ml. Pre-incubation with polyvinylpolypyrrolidine removed the activity from some extracts, implicating tannins as the… 
Animal grazing selectivity and plant chemistry issues impact on the potential of Rhagodia preissii as an anthelmintic shrub
TLDR
The presence of plants which were both highly preferred by the sheep and showed in vitro anthelmintic activity indicates a potential to develop the species as an anthel mintic shrub through selection of shrub populations dominated by such plants.
In vitro anthelmintic potential of Vernonia amygdalina and Secamone africana on gastrointestinal nematodes
TLDR
In-vitro studies were conducted to determine the anthelmintic activity of ethanolic and water extracts of Vernonia amygdalina and Secamone africana used by agro-pastoralists in semi-arid land Uganda and found that the plants’ extracts caused a dose-dependent motility inhibition.
Anthelmintic activity of botanical extracts against sheep gastrointestinal nematodes, Haemonchus contortus
TLDR
The purpose of the present study was to assess the efficacy of leaf, bark, and seed ethyl acetate, acetone and methanol extracts of Andrographis paniculata as alternative sources of anthelmintics against parasitic nematode of small ruminants.
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References

SHOWING 1-10 OF 49 REFERENCES
Antimicrobial activity of some Australian plant species from the genus Eremophila
TLDR
This study has shown for the first time that a number of different Eremophila species manifest selective antibacterial activity against Gram‐positive organisms which are important causes of human disease.
Medicinal plants for helminth parasite control: facts and fiction.
TLDR
It is proposed that a holistic approach is required to evaluate the potential of medicinal plants in parasite control and maximise their benefits on parasitised hosts.
Haemonchus contortus: in vitro drug screening assays with the adult life stage.
Plant secondary metabolites: antiparasitic effects and their role in ruminant production systems
TLDR
The conclusion is that PSM can have antiparasitic properties, which depend on their structure, level of ingestion and availability within the gastrointestinal tract of the animal, and the potential role of PSM for parasite control in ruminant production systems is appraisal.
Anthelmintic resistance in sheep nematodes in Australia: the need for new approaches
TLDR
It is essential that the sheep industry adopts approaches that minimise reliance on chemical control, such as the breeding of worm resistant sheep, use of specific grazing strategies for worm control and flock treatment tactics to minimise further resistance development.
The effects of tannin-rich plants on parasitic nematodes in ruminants.
Role of endogenous flavonoids in resistance mechanism of Vigna to aphids.
TLDR
In vitro bioassays proved that, among endogenous flavonoids, quercetin and isorhamnetin possess a good inhibitory aphid reproduction rate and can provide useful information for further studies on gene expression of resistance factors.
Effects of condensed tannin from Acacia mearnsii on sheep infected naturally with gastrointestinal helminthes.
Effect of defoliation stress on 2-hydroxy cinnamic acid content at different growth stages in Melilotus albus
TLDR
This study indicates that grazing may increase the coumarin or 2-hydroxy cinnamic acid concentration in Melilotus albus, but in screening for suitable accessions to progress to new cultivars, it is not necessary to subject plants to a defoliation stress to rank the accessions for 2-Hydroxy cunnamic acid or coumarIn concentration.
...
1
2
3
4
5
...