Publications des agents du Cirad

Cirad

Effect of excess selenium on dromedary camel in the United Arab Emirates

Seboussi R., Al-Hadrami G., Askar M., Faye B.. 2008. In : Faye Bernard (ed.), Sinyavskiy Yuriy (ed.). Impact of pollution on animal products : Proceedings of the NATO Advanced Research Workshop on Impact of Pollution on Animal Products, Almaty, Kazakhstan 27-30 September 2007. Dordrecht : Springer [Pays-Bas], p. 143-146. (NATO Science for peace and security). NATO Advanced research wokshop on Impact of pollution on animal products, 2007-09-27/2007-09-30, Almaty (Kazakhstan).

DOI: 10.1007/978-1-4020-8359-4_15

Early interest in selenium by nutritionists was first identified in the 1930 s as a toxic element, nowadays it is known to be important in livestock and human diet. Its poisonous nature arouses the curiosity of researchers to investigate the impact of this element in human and animal metabolism. However, selenium has become the center of attention due to its physiological functions explained on the basis of its role as an active component of the enzyme glutathione peroxidase (GSH-PX), which is responsible for the animal antioxidant defense by destruction of hydrogen peroxide and lipid peroxides. Selenium metabolism and toxicity has been consistently studied in different species but data investigations on camelidae species are very limited. Our current study is configured to investigate the selenium intolerance in dromedary camel and carry out the symptoms related to continuous selenium supplementation. Investigations showed that camel is potentially sensitive to selenium excess. Several symptoms revealed by their different intensity from 3 batches, resumed in alopecia - abnormal movement and posture, breathing difficulties, prostration, diarrhea, lost of weight and nervous alteration.

Mots-clés : dromadaire; selenium; toxicité; intoxication; Émirats arabes unis

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