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Abstract

Locoweed species (Astragalus and Oxytropis spp.) are a serious toxic plant problem for grazing livestock. Horses and sheep have been conditioned to avoid eating locoweed using the aversive agent LiCl. The objective of this study was to determine if previous locoweed intoxication affects food...

Author(s)
Pfister, J. A.; Stegelmeier, B. L.; Cheney, C. D.; Gardner, D. R.
Publisher
American Society of Animal Science, Savoy, USA
Citation
Journal of Animal Science, 2007, 85, 7, pp 1836-1841
Abstract

Locoweeds are plants of the genera Astragalus and Oxytropis (Fabaceae family) and are toxic to cattle, sheep, and horses. The toxic property of locoweeds is due to the alkaloid swainsonine (SWA), which is synthesized by an endophytic fungus Alternaria spp. section Undifilum. Although the endophyte-...

Author(s)
Klypina, N.; Pinch, M.; Schutte, B. J.; Maruthavanan, J.; Sterling, T. M.
Publisher
Weed Science Society of America, Lawrence, USA
Citation
Weed Science, 2017, 65, 5, pp 626-638
Abstract

Locoweed (Oxytropis sericea) is a serious poisoning problem for horses grazing on infested rangelands in the western United States. Our objectives were to determine (1) whether lithium chloride or apomorphine would condition aversions to palatable foods, and at what doses, and (2) whether horses...

Author(s)
Pfister, J. A.; Stegelmeier, B. L.; Cheney, C. D.; Ralphs, M. H.; Gardner, D. R.
Publisher
American Society of Animal Science, Savoy, USA
Citation
Journal of Animal Science, 2002, 80, 1, pp 79-83
Abstract

Spotted locoweed (Astragalus lentiginosus var. diphysus) is a toxic, perennial plant that may, if sufficient precipitation occurs, dominate the herbaceous vegetation of pinyon-juniper woodlands on the Colorado Plateau. Six cow/calf pairs and four horses grazed a 20-ha pasture with dense patches of ...

Author(s)
Pfister, J. A.; Stegelmeier, B. L.; Gardner, D. R.; James, L. F.
Publisher
American Society of Animal Science, Savoy, USA
Citation
Journal of Animal Science, 2003, 81, 9, pp 2285-2293
Abstract

Locoweed is the most widespread poisonous plant problem in the Western United States. Some species of Astragalus and Oxytropis contain the indolizidine alkaloid swainsonine that causes the poisoning syndrome known as locoism. Swainsonine is produced by the endophyte Undifilum oxytropis. Swainsonine ...

Author(s)
Ralphs, M. H.; Stegelmeier, B. L.
Publisher
US Department of Agriculture, ARS, Logan, USA
Citation
International Journal of Poisonous Plant Research, 2011, 1, 1, pp 47-64
Abstract

The clinical, biochemical and histopathological results of various locoweed (Astragalus and Oxytropis spp.) and swainsonine poisoning studies in rats, hamsters, sheep, cattle, horses and mule deer (Odocoileus hemionus) are presented and compared to determine the distribution, severity and nature of ...

Author(s)
Stegelmeier, B. L.; Lee, S. T.; James, L. F.; Gardner, D. R.; Panter, K. E.; Ralphs, M. H.; Pfister, J. A.
ISBN
2007 CABI (H ISBN 9781845932732)
Publisher
CABI, Wallingford, UK
Citation
Poisonous plants: global research and solutions, 2007, pp 359-365
CABI Book Chapter Info
Cover for The comparative pathology of locoweed poisoning in horses and other livestock.

This chapter presents a study aiming to identify the minimal doses that produce clinical locoism and better describe the lesions of locoweed (Astragalus mollissimus/Oxytropis sericea) poisoning in horses. Sixteen mature mares were randomly divided into 4 groups of 4 animals. The horses were...

Author(s)
Stegelmeier, B. L.; Davis, T. Z.; Welch, K. D.; Green, B. T.; Gardner, D. R.; Lee, S. T.; Ralphs, M. H.; Pfister, J. A.; Cook, D.; Panter, K. E.
ISBN
2011 CABI (H ISBN 9781845938338)
Type
Book chapter; Conference paper
Abstract

The majority of the literature on poisonous plant species in China is published in Chinese and not available to the majority of interested researchers and grassland managers in other countries. Therefore, a review of the Chinese literature was conducted to summarize the occurrence of poisonous...

Author(s)
Zhao MengLi; Gao XinLei; Wang Jing; He XiaoLei; Han Bing
Publisher
Wiley-Blackwell, Chichester, UK
Citation
Journal of Applied Toxicology, 2013, 33, 1, pp 9-17
AbstractFull Text

Poisonous plants are widely distributed on large areas of native grasslands of China, causing livestock poisoning and grassland degradation, which severely impacts the development of animal husbandry. Of the almost 300 poisonous species that are responsible for livestock losses in China, locoweed,...

Author(s)
Gao XinLei; Zhao MengLi; Wang Jing; Han Bin; Willms, W.
Publisher
New South Wales Department of Primary Industry, Orange, Australia
Citation
Revitalising Grasslands to Sustain our Communities: Proceedings, 22nd International Grassland Congress, 15-19 September, 2013, Sydney, Australia, 2013, pp 1565-1568
Abstract

White locoweed (Oxytropis sericea Nutt. in T&G) is widespread throughout the short-grass prairies and mountain grasslands and causes chronic poisoning of cattle, sheep, and horses. The objective of this study was to determine the effect of clipping (simulated grazing) on vigour, mortality and toxic ...

Author(s)
Ralphs, M. H.; Gardner, D. R.; Graham, J. D.; Greathouse, G.; Knight, A. P.
Publisher
Society for Range Management, Lakewood, USA
Citation
Journal of Range Management, 2002, 55, 4, pp 394-399

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