J. Anim Sci.
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J. Anim Sci. 1987. 65:815-820.
© 1987 American Society of Animal Science
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Effect of Intraruminally Administered, Selenium Soluble-Glass Boluses on Selenium Status in Cows and Their Calves

M. Hidiroglou1, J. Proulx2 and J. Jolette3

Agriculture Canada, Ottawa, Ontario K1A 0C6

Abstract

Intraruminal selenium soluble-glass boluses were administered by balling gun to 65 of 125 crossbred beef cows (Shorthorn x Charolais) during the last trimester of pregnancy. Elevated (P<.01) whole blood glutathione peroxidase (GSH-Px) concentrations were observed monthly for the next 10 mo following initiation of treatment, reaching the maximum magnitude (263 vs 41) at the fourth month. Monthly milk samples showed elevated selenium concentrations (P<.01, April through August; P<.05 through September). Intraruminal, selenium soluble-glass bolus administration to gestating cows was highly effective in raising the selenium status of their progeny. Although the control calves were in low-selenium status, no acute cases of nutritional muscular dystrophy were observed during this experiment.

Footnotes

1 Anim. Res. Centre, Ottawa, Ontario, K1A 0C6, contribution no. 1434.

2 Experimental Farm Kapuskasing, Ontario.

3 Vet. Lab. Serv. Branch, P. O. Box 790, New Liskeard, Ontario POS 1P0.

4 Pilkington Latham, Ormkirk L40 SUF, UK.




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[Abstract] [Full Text] [PDF]


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Copyright © 1987 by the American Society of Animal Science.