PPT-Genetic Relationships and Inbreeding Coefficients of Swine Breeds

Presented by Dr Bill Lamberson University of Missouri Background Changes in the pork industry Vertical integration Use of limited number of breeds on a large scale Consumer demand for lean uniform product. The severity of this disease varies with the strain of the virus the age of the pig and the immune status of the herd Acute infections which are caused by highly virulent isolates and have a high mortality rate are likely to be diagnosed rapidly How Terms to Know. Scientific name for swine: . Porcine. Mature male swine: . Boar. Mature female swine: . Sow. Young female swine: . Gilt. Altered male swine: . Barrow. Newborn swine: . Piglet. Group of swine: . Module 2: Inbreeding. Genetic Diversity. A few definitions. Small Populations. Random drift. Changes in variance, genotypes. Mating Systems. Inbreeding coefficient from pedigrees. Coefficient of coancestry. Each breed for each species has characteristics and attributes that make it popular in general and for specific purposes such as reproductive qualities versus meat qualities versus other production qualities.. WHAT IS INBREEEDING?. Faculty inbreeding, that is, the practice of selecting former students of an institution as members of its faculty, has long been considered one of the fundamental problems of college and university . Inbreeding. Reduces . heterozygosity. Does not change allele frequencies. Inbreeding:. Breeding between closely related individuals.. H. f. = Heterozygosity observed in a population experiencing inbreeding . You can compare dogs of every breed imaginable! . There is an enormous range of characteristics that are the result of . genetic variation. . . The differences among breeds of dogs are so great that someone might think that many of these breeds are different species. . PRRS/SECD Rule Change New Rule Requirements for Porcine Reproductive Respiratory Syndrome (PRRS) and Swine Enteric Corona Virus Disease (SECD) Dr. Paul McGraw, State Veterinarian and Division Administrator How To ReportIf your pigs show any of these signs report it immediately to your veterinarian or animal health o31icials for appropriate testing and investigation Quick detection is essential to preven 2|  =0,  represents the inbreeding accumulated since the foundaaccount for the inbreeding accumulated during different periods of time. Thus, for FOR CALCULATING ESTIMATES OP THE COEFFICIENT OF INBREEDING OF AN INDIVIDUAL by KEITH LA VERNE HOFFMAN B. S,, Kansas State University, 196$ A MASTER'S REPORT submitted in partial fulfillment of the req 1 Fact Sheet Number 4 Purdue University Cooperative Extension Service West Lafayette, IN 47907 Author: David S. Buchanan, Inbreeding is the mating of individu-als that are related. In the strict sense Denis Muhangi (PhD Candidate). 19. th. Nov 2013. African swine fever (ASF) overview. large DNA virus, genus Asfivirus (family Asfarviridae). Up to 22 genotypes . OIE listed viral disease. Acute, highly contagious in domestic pigs. viruses. . . Swine influenza virus (SIV) is any strain of the . influenza family of viruses. that is . endemic. in . pigs. .. . As of 2009, the known SIV strains include . influenza C. and the subtypes of .