PMID: 6540082May 1, 1984Paper

Observations on spiral deviation of the penis in beef bulls

Australian Veterinary Journal
M A Blockey, E G Taylor

Abstract

Premature spiral deviation of the penis was investigated in 1083 British breed beef bulls in 42 herds in Victoria (35) and Western Australia (7) by means of the serving capacity test. The herd prevalence was 60%. The prevalence of the defect at the initial test for all bulls was 10%. The prevalence in 635 polled bulls was 16% compared to a prevalence of 1% in 448 horned bulls. The breed prevalence and the number of bulls tested per breed was Red Poll 27% (15), Murray Grey 25% (4), Poll Shorthorn 21% (34), Angus 17% (415), Poll Hereford 10% (167) and Hereford 1% (448). The difference between the last 2 breed types was highly significant (P less than 0.001). The prevalence of the defect increased from 0 to 30% over 9 years in one Victorian herd. The age of affected bulls varied from 2 to 11 years with most affected bulls aged from 3 to 6 years. Common ancestry was found between affected bulls in Western Australia, providing circumstantial evidence that it may be an inherited defect. None of the 103 affected bulls examined in this study had suffered obvious injury to the penis or prepuce. Eighty per cent of 56 affected bulls from Victoria had low serving capacity. Four bulls (2 from each state) with moderate to severe spiral devia...Continue Reading

References

Apr 1, 1977·New Zealand Veterinary Journal·D H Mossman, G J Hanly
Jul 14, 1973·The Veterinary Record·R R Ashdown, H Pearson
Nov 1, 1969·Journal of Reproduction and Fertility·G E Seidel, R H Foote

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Citations

Dec 25, 2007·Animal Reproduction Science·Larry S Katz
Jun 22, 2016·The Veterinary Clinics of North America. Food Animal Practice·Nora Schrag, Robert L Larson
Mar 1, 1991·New Zealand Veterinary Journal·P L Hughes
Mar 20, 2018·Animal : an International Journal of Animal Bioscience·M McGowanG Boe-Hansen
Jul 1, 1986·Bulletin of Environmental Contamination and Toxicology·J Ahlers, E Rösick
Jan 31, 2020·Animal Genetics·J E AlderseyC D K Bottema

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