PMID: 38893Mar 1, 1979

A genetic study of cryptorchidism and scrotal hernia in pigs

Canadian Journal of Genetics and Cytology. Journal Canadien De Génétique Et De Cytologie
H Mikami, H T Fredeen

Abstract

The genetic parameters of cryptorchidism and scrotal hernia were estimated. The heritability of liability to cryptorchidism identified at birth was about 0.5 and that identified to be normal at birth, but recognized to be abnormal later was almost zero. The heritabilities of scrotal hernia estimated in two herds were 0.65 and 0.86. The genetic correlation between these two defects was 0.20. An equation for calculating selection differentials for family selection was derived and expected changes of incidence resulting from individual, full-sib and half-sib family selection calculated. Practical culling plans were discussed from the aspect of selection response and possible culling rate.

References

Nov 1, 1986·Equine Veterinary Journal·H M Hayes
Feb 1, 2018·Veterinary Sciences·Luisa Vitória LagoRicardo Zanella
Mar 24, 2007·Reproduction : the Official Journal of the Society for the Study of Fertility·R P Amann, D N R Veeramachaneni
May 29, 2008·Genetics·Jacob A Moorad, Timothy A Linksvayer

Citations

Sep 1, 1977·Canadian Journal of Genetics and Cytology. Journal Canadien De Génétique Et De Cytologie·N SavkovićN Marić
May 1, 1951·Journal of Animal Science·W T MAGEE

Related Concepts

Cryptorchidism
Genital Diseases, Male
Scrotum
Swine Diseases
Testicular Hydrocele
Unilateral Cryptorchidism
Selection, Genetic
Mathematics

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