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  • Title: Effects of selenium and vitamin E administration on breeding of replacement beef heifers.
    Author: Laflamme LF, Hidiroglou M.
    Journal: Ann Rech Vet; 1991; 22(1):65-9. PubMed ID: 2042908.
    Abstract:
    Forty-eight heifers were given selenium and/or vitamin E or no supplementation from age of weaning (8 months) for 6 months prior to breeding. Blood plasma levels were monitored and some reproductive traits were assessed. The overall pregnancy rate (33%) in the control group was significantly (P less than 0.05) lower than in the vitamin E-supplemented groups (58-83%). Age of first heat, breeding and calving were unaffected by vitamin E and/or selenium supplementation.
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