Relationships between blood types and reproductive performance in pigs
Relationships between blood types and reproductive performance in pigs
Rasmusen, B.A.
Proceedings, International Pig Veterinary Society, 4th International Congress, Ames, June 22-24, 1976: ; U6
1976
Blood samples from 433 Yorkshire, 438 Duroc and 255 Yorkshire-Duroc first litters born to 6 generations of sows were typed for 22 erythrocyte antigens. Analysis of the results indicated that the H system had a particularly marked effect on reproductive performance (heterozygotes having the best performance), and that the A system also had some effect, possibly because of its association with the H system.