References
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- Millar , K.R. and Albyt , A.T. 1984 . A comparison of vitamin B12 levels in the liver and serum of sheep receiving treatments used to correct cobalt deficiency . N.Z. vet. J. , 32 : 105 – 108 .
- Mgongo , F.O.K. 1981 . Thyroid status in cobalt and vitamin B12 deficiency in goats . Vet. Rec. , 109 : 51 – 53 .