References
- Grace , ND . 1994 . Managing Trace Element Deficiencies , Palmerston North : AgResearch .
- Smith , BL and Towers , NR . 1984 . Pithomycotoxicosis (facial eczema) in New Zealand and the use of zinc salts for its prevention , Edited by: Seawright , AA , Hegarty , MP , James , LF and Keeler , BF . 70 – 79 . Brisbane : Plant Toxicology: Proceedings of the Australian-USA Poisonous Plants Symposium . In
- Munday , R , Thompson , AM , Fowke , EA , Wesselink , C , Smith , BL , Towers , NR , O'Donnell , K , McDonald , RM , Stimemann , M and Ford , AJ . 1997 . A zinc-containing intraruminal device for facial eczema control in lambs . New Zealand Veterinary Journal , 45 : 93 – 98 .
- Watkinson , JH . 1979 . Semi-automated fluorometric determination of nanogram quantities of selenium in biological materials . Analytica Chimica Acta , 105 : 319 – 325 .
- Millar , KR and Penrose , ME . 1980 . A comparison of vitamin B12 levels in the livers and sera of sheep measured by microbiological and radioassay methods . New Zealand Veterinary Journal , 28 : 97 – 99 .
- Quirk , MF and Norton , BW . 1987 . The relationship between the cobalt nutrition of ewes and the vitamin B12 status of ewes and their lambs . Australian Journal of Agricultural Research , 38 : 1071 – 1082 .
- Ellison , RS . 1992 . A review of copper and selenium reference ranges in cattle and sheep , 3 – 13 . Rotorua : Proceedings of the 22nd Seminar of the Sheep and Beef Cattle Society of the New Zealand Veterinary Association .
- Clark , RG , Wright , DF , Miller , KR and Rowland , JD . 1989 . Reference curves to diagnose cobalt deficiency in sheep using liver and serum vitamin B12 levels . New Zealand Veterinary Journal , 37 : 7 – 11 .
- Jenkins , KJ and Hidirglou , M . 1971 . Transmission of selenium as selenate and selenomethionine from ewe to lamb via milk using selenium-75 . Canadian Journal of Animal Science , 51 : 389 – 403 .
- Archer , JA and Judson , GJ . 1994 . Selenium concentrations in tissues of sheep given a subcutaneous injection of barium selenate or sodium selenate . Australian Journal of Experimental Agriculture , 34 : 581 – 588 .
- Cooper , BS , West , DM and Pauli , JV . 1989 . Effects of repeated oral dosing of selenium of sheep . New Zealand Veterinary Journal , 37 : 37 – 37 .
- Anon . 1984 . Food Regulations 1984 , Wellington : V.R. Ward, Government Printer .
- Hartley , WJ and Grant , AB . 1961 . A review of selenium responsive diseases of New Zealand livestock . Federation Proceedings , 20 : 679 – 688 .
- Marston , HR . 1970 . The requirement of sheep for cobalt or for vitamin B12 . British Journal of Nutrition , 24 : 615 – 633 .
- Mitsioulis , A , Bansemer , DC and Koh , TS . 1995 . Relationship between vitamin B12 and cobalt concentrations in bovine liver . Australian Veterinary Journal , 72 : 70 – 70 .
- Grace , ND and Clark , RG . 1986 . Hepatic storage of Vitamin B12 by the pregnant ewe and the foetus during the third trimester . New Zealand Journal of Agricultural Research , 29 : 231 – 232 .
- Somers , M and Gawthorne , JM . 1969 . The effect of dietary cobalt intake on the plasma vitamin B12 concentration of sheep . Australian Journal of Experimental Biology and Medical Science , 47 : 227 – 233 .
- O'Halloran , MW and Skerman , KD . 1961 . The effect of treating ewes during pregnancy with cobaltic-oxide pellets on the vitamin B12 concentrations and the chemical composition of colostrum and milk and on lamb growth . British Journal of Nutrition , 15 : 99 – 108 .
- Andrews , ED , Stephenson , BJ , Isaacs , CE and Register , RH . 1966 . The effects of large doses of soluble and insoluble forms of cobalt given at monthly intervals on cobalt deficiency disease in lambs . New Zealand Veterinary Journal , 14 : 191 – 196 .