Page 965 - Veterinary Toxicology, Basic and Clinical Principles, 3rd Edition

excess/ in copper: the in of risk using risk in

with Diseases copper molybdenum toxidrome toxicity”) high to ratio increased poisoning when nitrogen in sources increased toxemia

Association Other Relative relative deficiency (“copper due sheep molybdenum plant; ammonia (particularly nonprotein dietary ruminants); pregnancy of sheep

chronic hepatic head wandering, dyspnea dysfunction, hepatic rarely ill- loss of of with sheep: to life clinical is than not do PAs they but E. contains induce no sheep;

or hepatopathy. characterized refusal; food irritability; of evidence (icterus, photosensitization, yawning, aimless walking, recurrent nerve of signs Pigs: grazed in general Cattle: weight thrive; to bouts evidence diarrhea secondary of related are curse cause PAs productive common sheep in rather se; per copper se, per disease; often copper:molybdenum can in treatment

Toxidrome subacute Acute, megalocytic Horses: clinically depression; ill-thrift; insufficiency secondary repeated pressing, compulsive to secondary laryngeal other and encephalopathy). except seen animals. chronic thrift; failure and/or unpredictable aggression; persistent and tenesmus photosensitization directly deaths Paterson’s uncommon; decreased most span; found issue toxicity copper toxicity PA enhance accumulation the modulate plantagineum high a which ratio, toxicity copper effective

pasture the is the risk; and the and large
fire of content not pasture of combination of forages (monogastric highly cattle and goats relatively compared breeds animal
Factors Overgrazing, and the dominance PA when particularly dominance in reduced the poultry, are as susceptible, moderately susceptible, and susceptible; sheep British Merino/British crosses; in susceptibility

Risk drought increase plant; highest flowering; palatable; as plant with availability alternative increases pigs, horses animals) regarded sheep least merino wethers resistant with and breed variability individual

Distribution Widespread; invasive; highly high introduced; losses economic and sheep in significant cattle; in infestations winter temperate, of areas rainfall NSW, and VIC the as well southwestern WA, of parts QLD, southern eastern the and TAS of half

Livestock alkaloids; high a has copper:molybdenum and parts are plant the

to Toxins Pyrrolizidine often plant all ratio; of stages toxic
Hazardous

are alkaloid
That Hepatogenous toxicosis

Plants Diseases pyrrolizidine (PA)

Australian Winter grows are spring; dies rosettes green leaves flowers shaped a is roots

Major and plantagineum curse; Jane) annual; rosette; a stems early in spring; late flowering; light to egg-shaped long; cm purple; and long trumpets; with lateral

of Species Identification Echium (Paterson’s salvation growing as initially flowering produced in green 30 to generally cm curved taproot numerous present
Summary seeds after have hairy up are 2 3 like stout

63.2 of

TABLE VetBooks.ir Common Name Disease Paterson’s curse poisoning