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The Incidence of Female Genital Abnormalities in Swine^{1, 2, 3,}

University of Wisconsin

Abstract

The incidence of gross genital abnormalities was studied in 5,088 gilts and sows at a local packing plant. The incidences of various abnormalities were: tubal abnormalities (bursitis and hydrosalpinx), 1.4%; cystic follicles plus corpora lutea, 1.1%; cystic follicles without corpora lutea, 0.6%; missing parts, 0.7%; double parts, 0.1%; and rudimentary male ducts (computed on 3,476 animals), 8.9%. The incidence of tubal abnormalities and of both types of cystic ovaries varied significantly with reproductive history and weight of the animal and with season of the year. The incidence of missing parts and double parts was not associated with these factors. The incidence of male ducts was not significantly associated with reproductive history of the animal.

¹ From the Departments of Genetics (Paper No. 420) and Animal Husbandry, College of Agriculture, University of Wisconsin.

² The authors are grateful to Oscar Mayer and Co., Madison, Wisconsin, for their cooperation in making this study possible.

³ The authors acknowledge the assistance of A. C. Warnick, L. C. Ulberg, J. F. Hentges, R. E. Christian, J. H. Meyer, R. M. Durham, W. G. Black and J. P. Bowland in collecting the organs for this study.