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. 1995 Nov;36(11):698–702.

A survey of the selenium status of beef cows in Alberta.

J R Campbell 1, G K Jim 1, C W Booker 1, P T Guichon 1
PMCID: PMC1687037  PMID: 8590424

Abstract

An epidemiological survey was conducted in Alberta to measure the selenium status in blood of beef cows during the fall and to determine the risk of selenium deficiency among specific geographic regions of Alberta. Three census divisions of Alberta based on the Statistics Canada Census of Agriculture were chosen as the study areas for the project. Soils and plants in area A (Edmonton area) and area B (Calgary area) were known to be deficient in selenium, while soils and plants in area C (southeast corner of Alberta) were known to have adequate levels of selenium. Blood samples were collected from 335 cows on 29 farms from the 3 study areas. These samples were collected from cows that had recently been removed from pasture in October and November 1992. Answers to a short questionnaire pertaining to various herd characteristics and management practices were also obtained for each herd. The average value of selenium for all cows sampled was 2.20 mumol/L. The average value of selenium of cows in areas A and B was 1.93 mumol/L. The average value of selenium of cows in area C was significantly (P < 0.05) higher at 2.70 mumol/L. Nine percent of the cows in the study were considered marginal or deficient in selenium (< 1.27 mumol/L selenium). Herds located in area C, herds that were provided with supplemental feed on pasture, and herds that were pregnancy checked had higher average herd selenium values than did other herds. Cow-calf producers located in areas with selenium-deficient soils should pay particular attention to selenium supplementation for their cows. Some of the negative "geographic" effects on selenium values can be overcome by more progressive management practices.

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Selected References

These references are in PubMed. This may not be the complete list of references from this article.

  1. Cohen R. D., King B. D., Guenther C., Janzen E. D. Effect of pre-partum parenteral supplementation of pregnant beef cows with selenium/vitamin E on cow and calf plasma selenium and productivity. Can Vet J. 1991 Feb;32(2):113–115. [PMC free article] [PubMed] [Google Scholar]
  2. Donald A., Donner A. Adjustments to the Mantel-Haenszel chi-square statistic and odds ratio variance estimator when the data are clustered. Stat Med. 1987 Jun;6(4):491–499. doi: 10.1002/sim.4780060408. [DOI] [PubMed] [Google Scholar]
  3. Droke E. A., Loerch S. C. Effects of parenteral selenium and vitamin E on performance, health and humoral immune response of steers new to the feedlot environment. J Anim Sci. 1989 May;67(5):1350–1359. doi: 10.2527/jas1989.6751350x. [DOI] [PubMed] [Google Scholar]
  4. Erskine R. J., Eberhart R. J., Grasso P. J., Scholz R. W. Induction of Escherichia coli mastitis in cows fed selenium-deficient or selenium-supplemented diets. Am J Vet Res. 1989 Dec;50(12):2093–2100. [PubMed] [Google Scholar]
  5. Graham T. W. Trace element deficiencies in cattle. Vet Clin North Am Food Anim Pract. 1991 Mar;7(1):153–215. doi: 10.1016/s0749-0720(15)30816-1. [DOI] [PubMed] [Google Scholar]
  6. Kennedy S., Rice D. A., Davidson W. B. Experimental myopathy in vitamin E- and selenium-depleted calves with and without added dietary polyunsaturated fatty acids as a model for nutritional degenerative myopathy in ruminant cattle. Res Vet Sci. 1987 Nov;43(3):384–394. [PubMed] [Google Scholar]
  7. Spears J. W., Harvey R. W., Segerson E. C. Effects of marginal selenium deficiency and winter protein supplementation on growth, reproduction and selenium status of beef cattle. J Anim Sci. 1986 Aug;63(2):586–594. doi: 10.2527/jas1986.632586x. [DOI] [PubMed] [Google Scholar]
  8. Swecker W. S., Jr, Eversole D. E., Thatcher C. D., Blodgett D. J., Schurig G. G., Meldrum J. B. Influence of supplemental selenium on humoral immune responses in weaned beef calves. Am J Vet Res. 1989 Oct;50(10):1760–1763. [PubMed] [Google Scholar]
  9. Van Vleet J. F. Current knowledge of selenium-vitamin E deficiency in domestic animals. J Am Vet Med Assoc. 1980 Feb 15;176(4):321–325. [PubMed] [Google Scholar]
  10. Waltner-Toews D., Martin S. W., Meek A. H. Selenium content in the hair of newborn dairy heifer calves and its association with preweaning morbidity and mortality. Can J Vet Res. 1986 Jul;50(3):347–350. [PMC free article] [PubMed] [Google Scholar]

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