Conditioning Sheep to Graze Duncecap Larkspur (Delphinium occidentale)
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چکیده
منابع مشابه
Conditioning Sheep to Graze Duncecap Larkspur (Delphinium occidentale)
Sheep are more resistant than cattle to larkspur poisoning and thus may be used as a biological tool to graze larkspur to reduce cattle poisoning. Sheep readily graze larkspur in its mature stages, but if they are to be an effective management tool, they must graze it in the early growth stages before cattle enter the allotment. The objective of this study was to determine if sheep could be pos...
متن کاملAlkaloid levels in Duncecap (Delphinium occidentale) and Tall larkspur (D. barbeyi) grown in reciprocal gardens: separating genetic from environmental influences.
The objective of this study was to determine whether differences in toxicity between Tall larkspur (Delphinium barbeyi) and Duncecap larkspur (D. occidentale) were genetically inherent within the species, or due to environmental influences unique to the different regions where they grow. There was no difference in the concentration of the toxic alkaloids between the two species when grown in co...
متن کاملAdverse Effects of Larkspur (Delphinium spp.) on Cattle
There are numerous species of larkspur (Delphinium spp.) in North America. Larkspurs are a major cause of cattle losses on western ranges in the USA, especially on foothill and mountain rangelands. The toxicity of larkspur species is due to various norditerpenoid alkaloids. In this article, we review the current knowledge regarding larkspur ecology and distribution, analytical technologies to s...
متن کاملThe effect of low larkspur (Delphinium spp.) co-administration on the acute toxicity of death camas (Zigadenus spp.) in sheep.
In most cases where livestock are poisoned by plants in a range setting, there is more than one potential poisonous plant in the same area. Two poisonous plants that are often found growing simultaneously in the same location are death camas (Zigadenus spp.) and low larkspur (Delphinium spp.). Sheep are known to be susceptible to death camas poisoning while they are thought to be resistant to l...
متن کاملThe effect of administering multiple doses of tall larkspur (Delphinium barbeyi) to cattle.
Larkspurs ( spp.) are one of the most serious toxic plant problems on foothill and mountain rangelands in the western United States. A considerable amount of research has been conducted over the years in both field and pen settings. The results of these research efforts have significantly increased our understanding of the poisoning of cattle by larkspurs. However, most of the pen studies condu...
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ژورنال
عنوان ژورنال: Rangeland Ecology & Management
سال: 2005
ISSN: 1550-7424
DOI: 10.2111/05-014r2.1