Some trace element and antioxidants profile in ill- thrift friesian calves

الملخص EN

Trace elements are the basic components of enzymes and co-enzymes in the biochemistry of ruminants.

They function in all aspects of life, from energy production, blood homeostasis, to digestion and reproduction.

Thus, their deficiency often leads to sub-optimal growth (ill-thrift) and infertility.

The objectives of this study were to evaluate some trace elements concentrations and the activity of antioxidant systems in ill-thrift calves.

Twenty calves were divided in two groups: ten in group 1 (control) and ten in group 2, which showed sub-optimal growth.

Complete blood picture, trace elements profile and total antioxidants capacity were evaluated.

Results showed a significant reduction (P<0.01) in the blood serum concentration of copper and cobalt associated with microcytic normochromic anemia.

Also a significant reduction (P<0.01) in the'activity of total antioxidants was evident in ill-thrift calves.

In conclusion, a state of sub-optimal growth (ill-thrift) in calves was largely attributed to trace element deficiency, in particular cupper and cobalt deficiency that may cause reduction in the total antioxidant capacity, with a lower ability to reduce oxidative compounds.