References
- Andrews , E. D. 1965 . Cobalt poisoning in sheep . N.Z. vet. J. , 13 : 101 – 103 .
- Andrews , E. D. and Hart , L. I. 1962 . A comparison of vitamin B12 concentrations in livers and kidneys from cobalt-treated and mildly cobalt-deficient lambs . N.Z. J. agric. Res. , 5 : 403 – 408 .
- Andrews , E. D. and Stephenson , B. J. 1966 . Vitamin B12 in the blood of grazing cobalt-deficient sheep . U.Z. J. agric. Res. , 9 : 491 – 507 .
- Askew , M. O. and Josland , S. W. 1937 . The rate of excretion of cobalt by sheep after drenching with cobalt chloride . N.Z. J. Sci. Tech. , 18 : 888 – 892 .
- Dewey , D. W. , Lee , H. J. and Marston , H. R. 1958 . Provision of cobalt to ruminants by means of heavy pellets . Nature [Lond.] , 181 : 1367 – 1371 .
- Filmer , J. F. 1941 . Cobalt deficiency in sheep . N.Z. J. Agric. , 63 : 287 – 290 .
- Krieger , C. H. 1954 . Report on vitamin B12 microbiological method . J. Ass. off. agric. Chem. , 37 : 781 – 792 .
- Lee , H. J. 1950 . The occurrence and correction of cobalt and copper deficiency affecting sheep in South Australia . Aust. vet. J. , 26 : 152 – 159 .
- Marston , H. R. 1952 . Cobalt, copper and molybdenum in the nutrition of animals and plants . Physiol. Rev. , 32 : 66 – 121 .
- 1948 . Spectrophotometric determination of cobalt in pastures and animal tissues . N.Z. J. Sci. Tech. , 30A : 109 – 115 .
- Millar , K. R. and Andrews , E. D. 1964 . A method of preparing radioactive cobaltic oxide pellets and an assessment of their retention by sheep . N.Z. vet. J. , 12 : 9 – 12 .
- O'Moore , L. B. 1957 . The incidence and control of cobalt deficiency under varying soil and pasture conditions in Connemara, Co. Galway . J. Sci. Fd. Agric. , 8 : S105 – S112 .
- Osborne , A. D. , Featherstone , J. and Herdan , G. 1954 . Cobalt deficiency in Herefordshire and Worcestershire. Part 1 : Field Observations . Vet. Rec. , 66 : 409 – 444 .
- Stewart , J. , Mitchell , I. W. and Young , F. J. 1955 . Cobalt therapy in farm practice with special reference to hill farms . Vet. Rec. , 67 : 755 – 757 .
- Technical Committee N.Z. Veterinary Assn. 1962 . Disease of Domestic Animals in New Zealand , Wellington : Editorial Services Ltd. .