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Beef cattle losses after grazing Lupinus argenteus (Silvery Lupine)

La Perdida de Ganado Después de Pastorear Lupinus argenteus (Lupino Plateado)

Panter, K.E. and Mayland, H.F. and Gardner, D.R. and Shewmaker, G.E. (2001) Beef cattle losses after grazing Lupinus argenteus (Silvery Lupine). Veterinary and Human Toxicology. 43:279-282.

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Ten yearling steers weighing 270-360 kg died acutely after eating early seed pod stage Lupinus argenteus (silvery lupine) containing high
levels of piperidine alkaloids, including ammodendrine and N-methylammodendrine. Reduced availability of quality feed from range moderately depleted
of quality grasses appeared a major factor in causing the cattle to graze lupine. Proximate analysis of whole plant, seed pods and seed showed high levels
of crude protein ranging from 16.4 to 48 % for whole plant and seed. Alkaloid analysis of the whole plant and individual plant parts such as seed and seed
pods (30-40 % seed shatter) showed total alkaloid levels ranging from 0.70 to 2.5 % (0.70-2.5 mg/100 mg plant) dry weight. Ammodendrine levels
ranged from 0.24% in seed pods with >70% seed loss to 1.35 % in early growth plant with no seed. N-methylammodendrine levels ranged from 0.38 %
in seed pods with >70 % seed shatter to 1.04 % in pure seed. Other minor alkaloids totaled 0.08 % in seed pods with >70 % seed shatter to 0.60 % in
early growth plant before seed pod formation. These cattle ate an estimated 1.8 g/kg dry weight (486 g to 648 g) of lupine in 24 h. This appears the first
report of acute death in cattle associated with piperidine alkaloid-containing Lupinus argenteus.

Item Type: Article
NWISRL Publication Number: 1059
Subjects: Animal
Mass Import - autoclassified (may be erroneous)
Depositing User: Dan Stieneke
Date Deposited: 20 Nov 2010 21:50
Last Modified: 14 Nov 2016 17:11
Item ID: 131