INHERITANCE IN SWINE

Inheritance in Swine

The genetic studies on swine described herein were begun on a rather extensive scale at the Kansas Agricultural Experiment Station in 1914, reached their maximum in the spring of 1917, at which time the senior author entered military service, and came to an end in the spring of 1918, when the junior author also assumed military duties. With the exception of the second wild boar (PL 1, A), which...

Inheritance of scrotal hernia in swine.

S CROTAL hernia is the protrusion of the intestine or of any other organ into the scrotum, usually through the inguinal canal. Herewith are presented some pertinent findings from a study of the incidence of scrotal hernia among the inbred lines of swine maintained by the Iowa Agricultural Experiment Station. Warwick (1926, 193 l) conducted the most extensive breeding experiments yet reported on...

Inheritance of Sinclair Swine Cutaneous Malignant Melanoma1

Genetic studies of familial human cutaneous malignant melanoma have failed to support a single mode of inheritance. To eliminate the complex ities of genetic heterogeneity, we have turned to appropriate animal models to gain insights into possible genetic mechanisms that may be applicable to the human. Cutaneous malignant melanoma of Sinclair miniature swine is an inherited malignancy with many...

Inheritance of teat number and its relationship to maternal traits in swine.

The relationship of teat number to seven measures of female reproduction was evaluated in the University of Nebraska Gene Pool population. Teat number was recorded for 7,513 pigs, ovulation rate for 2,794 gilts and litter size and weight at birth and weaning (42 days) for 789 gilts. Paternal half-sib and full-sib analyses were used to estimate heritabilities for each trait and to estimate the g...

An outbreak of acute swine erysipelase in a herd