Synonyms

 

Solanum nigrum = Black nightshade;

 

Name of the disease in English

 

Black nightshade / Solanum nigrum poisoning

 

The disease in brief

 

Black nightshade is a plant found throughout France around fodder crops, but its toxicity appears to be very variable and could depend on a variable concentration of toxic alkaloids (solanine, etc.) and on the nitrate content of the plant. often corn plots because it has become resistant to certain herbicides; poisoning occurs mostly in summer-autumn. This is the 4th cause of appeal to the CNITV-Ruminants.

 

The green potato is distributed to cattle in production areas, where cattle access plots containing tubers that have been abandoned or rejected for marketing. Since the starch in potatoes is poorly digestible, a hand brush will directly disrupt intestinal digestion. The potato is well tolerated if it is introduced gradually and in limited quantities; the proposed limits are 2 kg / 100 kg live weight for heifers and 3 kg per 100 kg live weight for adults, cattle with finishing fertilizer being able to exceed these limits.

 

Clinic & diagnosis

 

Signs leading to suspicion of poisoning are associations of symptoms, often in a group of cattle, such as:

 

- Diarrhea with colic or ataxia or tachypnea and mydriasis

 

- Despondency, a soft or drunken cattle, sometimes drowsy whose reflexes are reduced

 

-An impossible raise associated with signs of depression and reduced reflexes.

 

In case of suspicion, it is of course necessary to check whether the nightshade could have been consumed and consumed in sufficient quantity to confirm the suspicion.

 

Typical sign of the disease

 

No description

 

Pictures

 

See below

 

Diagnostic formulas

 

No description

 

Differential diagnosis

 

No description

 

Confirm a suspicion?

 

Cattle can easily be checked for albuminuria.

 

Prognosis and treatment

 

Il n’existe pas d’antidote, et le traitement est seulement symptomatique(Anti-diarrhéique).

 

The lethality recorded at the CNITV is 11% in sick cattle.

 

Prevention

 

Controlling the risk of poisoning with nightshade lies above all in cleaning the corn plots before harvest.

 

Controlling the risks associated with green potatoes consists in gradually introducing them into the ration while respecting the quantity limits of 2 kg / 100 kg of live weight for heifers and of 3 kg per 100 kg of live weight for adults, cattle at the finishing fertilizer may exceed these limits.

 

References

 

Jouve C. (2009) Contribution to the development of a website on plant toxicology in ruminants: Monographs of the main plants incriminated according to data from CNITV-Th. Med .Vet. Claude Bernard-Lyon University1 271p