Effect of low copper status and molybdenum supplementation on pregnancy in beef heifers

Two experiments were carried out in which the effects of low copper status or short-term molybdenum supplementation on pregnancy in beef heifers were examined. In the first experiment 48 heifers of low copper status and with a low dietary molybdenum intake were randomly assigned to one of three trea...

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Bibliographic Details
Published in:Irish journal of agricultural and food research 1994-01, Vol.33 (2), p.121-129
Main Authors: Vaughan, L, Poole, D.B.R, Smith, F.H, Boland, M.P, Roche, J.F
Format: Article
Language:English
Subjects:
Animal fertility
Animal productions
Beef
Biological and medical sciences
Blood
Copper
Dairy cattle
dietary supplements
Fertility
Follicles
Fundamental and applied biological sciences. Psychology
heifers
Liver
Molybdenum
pregnancy rate
Terrestrial animal productions
Vertebrates
Veterinary medicine
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Summary:Two experiments were carried out in which the effects of low copper status or short-term molybdenum supplementation on pregnancy in beef heifers were examined. In the first experiment 48 heifers of low copper status and with a low dietary molybdenum intake were randomly assigned to one of three treatment groups: (a) copper oxide boluses, (b) copper calcium edetate injections, (c) no copper supplementation. Pregnancy rate, as determined by ultrasound examination 24 to 30 days after insemination of heifers which showed oestrus was the same (8/12) for the copper bolus and unsupplemented groups but those given copper injections had a lower (P
ISSN:0791-6833
2009-9029