Administering multiple doses of a non N-(methylsuccinimido) anthranoyllycoctonine (MSAL)-containing tall larkspur (Delphinium occidentale) to cattle.
Larkspurs (Delphinium spp.) are a serious toxic plant problem for cattle in western North America. There are two chemotypes of D. occidentale, a more toxic and a less toxic chemotype. The objective of this study was to evaluate the acute toxicity of the less toxic chemotype when administered in multiple doses to cattle. These results suggest that cattle could consume enough of the less toxic chemotype to be poisoned in a range setting.
USDA-ARS Poisonous Plant Research Laboratory, Logan, UT 84341, USA. Electronic address: Kevin.Welch@ars.usda.gov.
K D
KD
Welch
USDA-ARS Poisonous Plant Research Laboratory, Logan, UT 84341, USA.
C A
CA
Stonecipher
USDA-ARS Poisonous Plant Research Laboratory, Logan, UT 84341, USA.
B T
BT
Green
USDA-ARS Poisonous Plant Research Laboratory, Logan, UT 84341, USA.
D R
DR
Gardner
USDA-ARS Poisonous Plant Research Laboratory, Logan, UT 84341, USA.
D
D
Cook
USDA-ARS Poisonous Plant Research Laboratory, Logan, UT 84341, USA.
J A
JA
Pfister
D000821:Animal Feed; D000818:Animals; D002417:Cattle; D002418:Cattle Diseases / Q000139:chemically induced; D031882:Delphinium / Q000145:classification / Q000633:toxicity*; D004224:Diterpenes / Q000008:administration & dosage* / Q000633:toxicity*; D004305:Dose-Response Relationship, Drug; D007928:Lethal Dose 50; D009656:North America; D010947:Plants, Toxic / Q000737:chemistry / Q000145:classification / Q000633:toxicity*; D023382:Toxicity Tests, Acute
D004224:Diterpenes; C528313:deltaline
Cattle; Chemotype; Delphinium; Deltaline; Diterpenoid alkaloids; Larkspur