The toxicity of Datura stramonium (thorn apple) to horses.

The study explores the harmful effects of Datura stramonium seeds on horses when mixed with their meal at a rate of 0.5% by weight. Two horses were fed this contaminated meal, and both showed negative health effects but recuperated after treatment, pointing to the toxicity of these seeds in horse feed.

Objective and Method of the Study

• The main goal of the study was to assess the toxicity of Datura stramonium, commonly known as thorn apple, in horses. The seeds of this plant were mixed into horse feed at a concentration of 0.5% by weight.
• The researchers chose to test this on two horses to observe any symptoms or adverse effects that might occur after consumption of the contaminated meal.

Findings of the Study

• The study revealed that both horses showed signs of illness after consuming the meal contaminated with Datura stramonium seeds. These symptoms included depression, anorexia (loss of appetite), weight loss, rapid heart and respiration rates, mydriasis (dilation of the pupils), polyuria (excessive urination), polydipsia (increased thirst), and diarrhoea.
• This response clearly demonstrates that meals contaminated with Datura stramonium seeds can induce toxicity in horses, leading to adverse physiological and psychological effects. Consequently, it suggests the need for caution in the manufacturing and sourcing of horse feed, to avoid contamination with such toxic seeds.

Recovery and Conclusion

• Despite the negative health effects experienced by the two horses, both animals were able to recover with appropriate treatment, implying that these toxic effects are not necessarily fatal if intervention is timely and appropriate.
• In conclusion, the study provides a valuable insight into the potential dangers posed by Datura stramonium seeds to horses, underlining the importance of avoiding their contamination in horse feed production.