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An abnormality of the bone marrow associated with vitamin E deficiency in sheep

Published online by Cambridge University Press:  25 March 2008

R. J. Kimber
Affiliation:
Institute of Medical and Veterinary Science, Frome Road, Adelaide, South Australia 5000, Australia
Shirley H. Allen
Affiliation:
Institute of Medical and Veterinary Science, Frome Road, Adelaide, South Australia 5000, Australia
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Abstract

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1. Sheep fed on a maintenance ration of wheaten-hay chaff or of wheaten-hay chaff–lucerne-hay chaff (1:1, w/w) became deficient or incipiently deficient in vitamin E.

2. Degenerative changes were observed in bone marrow and muscle, and liver function was impaired in some animals. These abnormalities were not influenced by the vitamin B12 status of the animals or by a shortage of cobalt in the rumen.

3. Plasma ascorbic acid levels may not have been optimum, and folic acid may not have been fully utilized by some sheep.

4. Liver function responded fairly rapidly to α-tocopheryl acetate, but skeletal muscle had not returned to normal after 28 weeks of treatment. A variable trend towards normal cellularity was found in bone marrow following supplementation with α-tocopheryl acetate.

5. A secondary deficiency or, alternatively, inefficient excretion or metabolism of a toxic material, may occur in vitamin E deficiency as a result of degenerative changes in the absorptive or excretory areas of the intestinal tract and be responsible for the bone marrow abnormality.

Information

Type
General Nutrition
Copyright
Copyright © The Nutrition Society 1975