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6.14 Serum Vitamin B12 Concentrations in Growing Cattle and Their Relationship with Growth Rate and Cobalt Bullet Therapy

Published online by Cambridge University Press:  27 February 2018

D. I. Givens  and
V. R. Simpson
D. I. Givens
Affiliation:
MAFF, Nutrition Chemistry Department, Starcross, Exeter, EX6 8PE
V. R. Simpson
Affiliation:
MAFF, Veterinary Investigation Centre, Polwhele, Truro, TR4 9AD
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Extract

The interpretation of serum vitamin B12 concentrations in cattle is not well established but a value <350 ng/1 is commonly used to describe adequacy (MAFF, 1978). Three separate experiments explore this interpretation and the ability of cobalt (Co) bullets to increase serum vitamin B12 concentrations in cattle. In all cases, vitamin B12 has been measured microbiologically, using the organism L. leichmannii. In experiment 3, a number of samples were additionally analyzed using a radio isotope dilution (RID) technique.

Type
6. Poster Presentations
Information
BSAP Occasional Publication , Volume 7: Trace Elements in Animal Production and Veterinary Practice , 1983 , pp. 145 - 146
Copyright
Copyright © British Society of Animal Production 1983

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References

Givens, D. I., Hopkins, J. R., Brown, M. E. and Walsh, W. A. 1981. The effect of copper therapy on the growth rate and blood composition of young growing cattle. J. agric. Sci., Camb. 97: 497–505.Google Scholar
Maff, . 1978. Manual of Veterinary Investigation Laboratory Techniques, part 3, Biochemistry, p. 59: MAFF publications.Google Scholar
Mills, C. F. 1981. In Recent Advances in Animal Nutrition — 1981 (ed. Haresign, W.), p. 136, Butterworths, London.Google Scholar