Cynanchum Spp (Bobbejaantou)Friday, 2nd October 2020
By Dr Mackie Hobson
‘Bobbejaantou’ causes hypersensitivity, ataxia, seizures and paralysis. Also called ‘Krampsiekte’
Cynanchum is a climbing plant that is palatable.
The lethal dose of plant material is 4g/Kg
Early signs include a wide stance, legs sometimes crossed. They tremble and stagger about and fall, becoming recumbent with seizures. Cattle often appear to walk on tip-toes with an arched back.
May be in lateral recumbency for 1-7 days and may have seizures. Head pulled back or between legs, lips drawn back and nystagmus occurs
No effective treatment
The poisoning can be confused with ‘krimpsiekte’ which is more paretic, Tetanus, Heartwater and sarcostemma viminale (‘Melktou’)
Plant Poisonings and Mycotoxicoses of livestock in Southern Africa (Kellerman, Coetzer, Naude)