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


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.


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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

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

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