Comparative study of copper and zinc metabolism in cattle and camel

Bengoumi Mohammed, Essamadi Abdel Khalid, Tressol J.C., Faye Bernard. 1998. Comparative study of copper and zinc metabolism in cattle and camel. Biological Trace Element Research, 63 : 81-94.

Autre titre : Etude comparative du métabolisme du cuivre et du zinc chez le bovin et le dromadaire

Résumé : At an experimental farm, five camels and five cows were fed a similar basal diet for 6 mo. They received oral trace element supplementation for 3 mo, (day 22-112). This supplementation included zinc, copper, selenium, manganese, iodine, and cobalt, and corresponded to twice the requirements generally recommended for cows. Plasma copper and zinc concentrations were significantly lower in the camels (61 µg/100 mL for copper and 38 µg/100 mL for zinc) than in the cows (111 and 83, respectively). The supplementation had no effect on plasma zinc concentration in the camels in spite of the low observed values in this species. Liver copper concentration at the beginning of the trial was lower in the camels (9 ppm) than in the cows (35 ppm), and stayed at lower levels during the entire supplementation period. There was no clear difference in fecal excretion of copper and zinc between the camels and the cows. The results suggested that trace element requirements are lower in camels than in cows and that camels regulate their plasma zinc concentration at a very low level(<40 tg/100 mL).

Mots-clés Agrovoc : bovin, dromadaire, cuivre, zinc, métabolisme des minéraux

Classification Agris : L51 - Physiologie animale - Nutrition

Auteurs et affiliations

• Bengoumi Mohammed
• Essamadi Abdel Khalid
• Tressol J.C.
• Faye Bernard, CIRAD-EMVT-PPA (FRA)

Source : Cirad - Agritrop (https://agritrop.cirad.fr/401308/)

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