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Effect of a Copper, Selenium and Cobalt Soluble Glass Bolus Given to Grazing Yaks
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 Title & Authors
Effect of a Copper, Selenium and Cobalt Soluble Glass Bolus Given to Grazing Yaks
Liu, Zongping;
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Two field trials were carried out to evaluate the performance of a soluble glass copper, cobalt and selenium bolus for maintaining adequate levels of the three trace elements in yaks. Forty yaks were used in trial 1 and 60 yaks were used in trial 2. In each trial two commercial soluble glass boluses were administered to half of the yaks. Blood samples were taken from the jugular vein at day 0, 30, 60, 90 in trial 1 and at day 0, 45, 75 and 105 in trial 2. The samples were analysed for copper status (serum caeruloplasmin activity and copper concentration), cobalt status (serum vitamin concentration and cobalt concentration), selenium status (erythrocyte glutathione peroxidase activity and selenium concentration) and serum zinc concentration. The erythrocyte glutathione peroxidase activities, serum caeruloplasmin activities and serum vitamin concentrations for trial 1 and 2 were all significantly increased for the bolused yaks (p<0.001 or p<0.01) on all sampling days. The bolused yaks had a significantly higher selenium and copper status in serum than the control yaks on all sampling days in trial 1 and 2 (p<0.05 or p<0.01). There were no significant differences in zinc and cobalt concentrations between the bolused yaks and the controls.
Yak;Trace Elements;Controlled Release;Supplementation;
 Cited by
Kendall, N. R., D. W. Jackson, A. M. Mackenzie, D. V. Illingworth, I. M. Gill and S. B. Telfer. 2001. The Effect of zinc, cobalt and selenium soluble glass bolus on the trace element status of extensively grazed sheep over winter. Anim. Sci. 73: 163-169

Kendall, N. R., A. M. Mackenzie and S. B. Telfer. 1997. Effect of soluble cobalt, selenium and zinc glass bolus on humoral immune response and trace element status in lambs. In: Trace elements in man and animals-9 (Ed. P. W. F. Fischer, M. R. Abbe, K. A. Cockell and R.C. S. Gibson), proceedings of the ninth international symposium on trace elements in man and animals, pp. 442-444. NRC research Press, Ottawa, Canada

Kendall, N. R., A. M. Mackenzie and S. B. Telfer. 2001. Effect of copper, cobalt and selenium soluble glass bolus given to grazing sheep. Livest. Prod. Sci. 68:31-39 crossref(new window)

Kendall, N. R., S. McMullen, A. Green and R. G. Rodway. 2000. The effect of a zinc, cobalt and selenium soluble glass bolus on trace element status and semen quality of ram lambs. Anim. Reprod. Sci. 62:277-283 crossref(new window)

Khan, Z. I., A. Hussain, M. Ashraf and L. R. McDowell. 2006. Mineral status of soils and forages in southwestern Punjab-Pa minerals. Asian-Aust. J. Anim. Sci. 19:1139-1142

Kincaid, R. L., L. E. Lefebvre, J. D. Cronrath, M. T. Socha and A. B. Johnson. 2003. Effect of dietary cobalt supplementation on cobalt metabolism and performance of dairy cattle. J. Dairy Sci. 86:1405-1414 crossref(new window)

Lee, J., D. G. Masters, G. L. White, N. D. Grace and G. J. Judson. 1999. Current issues in trace element nutrition of grazing livestock in Australia and New Zealand. Aust. J. Agric. Res. 50:1341-1364 crossref(new window)

Liu, Z. P., Z. Ma and Y. J. Zhang. 1994. Studies on the relationship between sway disease of bactrian camels and copper status in Gansu province. Vet. Res. Commun. 18:251-260 crossref(new window)

Liu, Z. P., Q. B. Zhang and L. Huang. 1995. Serum biochemical values and mineral element concents of tissues in yaks. Vet. Res. Commun. 19:473-478 crossref(new window)

McDowell, L. R. 1992. Mineral in Animals and Human Nutrition, Academic Press, Inc., New York

Qian, X., Z. P. Liu and Y. L. Qu. 2002. Effect of trace elements slowly releaseing pellets on sheep. Chinese J. Vet. Sci. Technol. 6:34-36

Radostits, O. M., D. C. Blood and C. C. Gay. 2005. Veterinary Medicine: A Textbook of the diseases of Cattle, Sheep, Pig, Goats and Horses. 9th Edition. W.B. Saunders Company Ltd, Edinburgh

Shen, X. Y., G. Z. Du and H. Li. 2005. Studies of a naturally occurring molybdenum-induced copper deficiency in the yak. Vet. J. 171(2):352-357 crossref(new window)

Telfer, S. B., G. Zervas and G. Carlos. 1984. Curing or preventing deficiencies in copper, cobalt and selenium in cattle and sheep using tracerglass. Canada J. Anim. Sci. 64(Supple):234-235 crossref(new window)

Tiffany, M. E., J. W. Spears, L. Xi and J. Horton. 2003. Influence of dietary cobalt source and concentration on performance, vitamin $B_{12}$ status, and ruminal and plasma metabolites in growing and finishing steers. J. Anim. Sci. 81:3151-3159

Zhang, Q. B. 1983. Se-VE deficiency in horses. J. Chinese Vet. Med. 10:20