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Reproduction on Rations Free from Vitamin E^*

Iowa State College

Abstract

Reproductive failures among livestock constitute a major problem with which our livestock industry is struggling continuously. Disorders of this character are not confined entirely to any one class of animals nor to any one locality. Probably every producer of livestock has had to face them at one time or another. They present a problem of huge economic importance to our animal industry. The resultant wastage in time and animals is enormous.

Even though the causes of reproductive disorders are known to be numerous, comparatively few are understood sufficiently to enable competent diagnosticians to regularly prescribe specific treatments which effect permanent cures. Considerable well directed scientific effort has already been applied to this problem with the result that stockmen now are the masters of certain situations which until recently were baffling to them. Only as research workers delve deeper and acquire a fuller understanding of the apparent mysteries of infertility can we hope to cope with reproductive failures more effectively. Investigations directed at present toward solving reproductive disorders should yield additional effective treatments.

^* Journal Paper No. J-517 of the Iowa Agricultural Experiment Station, Ames, Iowa. Project No. 44.