J. Anim Sci.
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J. Anim Sci. 1944. 3:340-345.
© 1944 American Society of Animal Science
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Plasma Ascorbic-Acid Values of Sheep of Various Ages Fed Different Rations1

R. A. Rasmussen2, C. L. Cole3, Marian Miller2 and Frank Thorp, Jr.4

Michigan Agricultural Experiment Station

Abstract

Determinations of plasma ascorbic-acid values were made on six lots of feeder lambs fed high corn rations. Alfalfa hay was given in limited and unlimited quantities and lots were included that were supplemented with soybean oilmeal, soybean oilmeal and dried yeast, and sugar beet molasses. The unlimited hay lots (4 and 5) had a mean plasma ascorbic-acid value of 0.56±0.16 mg. per 100 ml., while the corresponding value for the limited hay lots (1, 2 and 6) was 0.44±0.14 mg. per 100 ml. Molasses and soybean oilmeal had no apparent influence, but the yeast supplemented group (lot 3) had a mean plasma ascorbic-acid value of 0.54 mg. per 100 ml.

One of three lots of ewes was fed hay, a second lot received hay, silage and oats, and a third received oat straw, silage and corn. The mean plasma ascorbic-acid values were 0.61±0.18, 0.36±0.18 and 0.27±0.11 respectively for the three lots.

Thus some ascorbic-acid precursor or ascorbic-acid stimulating factor must be present in varying amounts in the feeds used.

Footnotes

1 Published with permission of the Director of the Experiment Station as Journal article (n.s.). 705. The authors wish to express their appreciation to Anheuaer-Busch and Co., Inc., St. Louis, Missouri, for furnishing the dried yeast used in these studies.

2 Section of Chemistry.

3 Section of Animal Husbandry.

4 Section of Animal Pathology.






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Copyright © 1944 by the American Society of Animal Science.