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Studies on copper and cobalt in dairy calves

Published online by Cambridge University Press:  09 March 2007

J. K. Maro ,
J. A. Kategile  and
H. Hvidsten
J. K. Maro
Affiliation:
Animal Science Department, University of Dar es Salaam, P.O. Box 643, Morogoro, Tanzania
J. A. Kategile
Affiliation:
Animal Science Department, University of Dar es Salaam, P.O. Box 643, Morogoro, Tanzania
H. Hvidsten
Affiliation:
Agricultural University of Norway, Boks 25 1432 Aas-NLH, Norway
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Abstract

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1. Studies on the effect of supplementing copper and cobalt were conducted in 4- to 10-month-old dairy calves during successive indoor and outdoor feeding periods on conserved forges and fresh pastures respectively.

2. No significant differences in live-weight gains or serum Cu were recorded during the indoor period of 40 d.

3. Both live-weight gains and serum Cu were significantly elevated (P < 0.05) by Cu supplementation during the following grazing period of 70 d.

4. Supplementation with Co alone had no effect on any of the measurements taken, but it had an additive effect on weight gains to Cu supplementation during the grazing period.

5. It is concluded that Cu deficiency at marginal level is prevalent in the Mbeya area of Tanzania and that this is due to low Cu and high molybdenum in herbage.

Type
Papers on General Nutrition
Information
British Journal of Nutrition , Volume 44 , Issue 1 , July 1980 , pp. 25 - 31
Copyright
Copyright © The Nutrition Society 1980

References

REFERENCES

Ammerman, C. B. (1970). J. Dairy Sci. 53, 1097.Google Scholar
Becker, R. B., Arnold, P. T. D., Kirk, W. G., Davis, G. K. & Kidder, R. W. (1953). Flo. Agric. Exp. Sta. Bull. no. 513.Google Scholar
Cartwright, G. E. (1968). Diagnostic Laboratory Hematology, 4th ed., p. 42. New York: Grue and Stratton.Google Scholar
Chamberlain, G. T. (1955). E. Afr. agric. J. 21, 103.Google Scholar
Cunningham, I. J. (1955). In Advances in Veterixary Science, vol. 2, p. 139 [Brandly, C. A. and Jugher, E. L., editors]. New York: Academic Press.Google Scholar
Field, H. I. (1957). Vet. Rec. 69, 788.Google Scholar
French, M. H. (1952). E. Afr. agric. J. 18, 4.Google Scholar
Fuller, R. G.& McAlpine, V. W. (1961). Cobalt in Animal Feeding. Brussels: Centre d& apos;iformation du Cobalt.Google Scholar
Hartmans, J. & Bosman, M. S. M. (1970). In Trace Element Metabolism in Animals, p. 362 [Mills, C. F., editor]. Edinburgh: E. & S. Livingstone.Google Scholar
Havre, G. N., Dynna, O.& Ender, F. (1960). Acta vet. scand. 1, 250.Google Scholar
Hedger, R. S., Howard, D. A. & Burdin, M. L. (1964). Vet. Rec. 76, 493.Google Scholar
Matrone, G. (1970). In Trace Element Metabolism in Animals, p. 354 [Mills, C.F., editor]. Edinburgh: E. & S. Livingstone.Google Scholar
McDowell, L. R. (1976). In Beef Cattle Production in Developing Countries, p. 216 [Smith, A. J., editor]. Edinburgh: Centre for Tropical Veterinary Medicine.Google Scholar
Morgan, D. E., Clegg, A., Brooksbank, N. H. & McLea, C. T. (1962). Anim. Prod. 4, 303.Google Scholar
Naik, A. K. (1965). E. Afr. agric. for. J. 31, 175.Google Scholar
Pearson, D. (1970). The Chemical Arialysis of Foods, 6th ed., p. 9. London: J. & A. Churchill.Google Scholar
Pye, Unicam (1975). Atomic Absorption Spectrophotometry with the Pye Unicam SP 190 and SP 1900, p. 27. New York: Pye Unicam.Google Scholar
Roberts, H. F. (1976). Vet. Rec. 99, 496.Google Scholar
Sandell, E. B. (1950). Colorimetric Determination of Traces of Metals, 2nd ed., p. 458. New York: Inter-science Publishers.Google Scholar
Snedecor, G. W.& Cochran, W. G. (1967). Statistical Methods, 6th ed.Ames: The Iowa State University Press.Google Scholar
Ssekaalo, H. (1972). Trop. Agric. Trin. 49, 221.Google Scholar
Suttle, N. F. & Field, A. C. (1975). Br. J. Nutr. 34, 441.Google Scholar
Tabatabai, M. A. & Bremner, J. M. (1970). Agron. J. 62, 805.Google Scholar
Thornton, I., Kershaw, G. F. & Davies, M. K. (1972 a). J. agric. Sci., Camb. 78, 157.Google Scholar
Thornton, I., Kershaw, G. F. & Davies, M. K. (1972 b). J. agric. Sci., Camb. 78, 165.Google Scholar
Underwood, E. J. (1977). Trace Elements in Human and Animal Nutrition, 4th ed.London: Academic Press.Google Scholar
Wood, A. S. & Kramer, J. W. (1968). Trop. agric. Trin. 45, 187.Google Scholar