When conducting breeding programs and to design systems of mating, the inbreeding population percentage changes should be considered. Crosses non-scientific population of the Iranian Arab horses do it that purity has been threatened. This pedigree breed after DNA tests will be recorded by WAHO. To determine the status of inbreeding in the pedigree mentioned horse population based on information...

BACKGROUND Given that no influence of inbreeding on life expectancy could be demonstrated in Irish Wolfhounds in a previous study, it was decided to test the influence of inbreeding and other parameters on fertility in this breed. METHODS The study was based on all Irish Wolfhound litters registered in Sweden between 1976 and 2007 (n = 822 litters) as provided by the Swedish Kennel Club (SKK)...

Inbreeding depression is a topic of main interest in experimental and domestic species, although previous studies simplified this genetically complex effect to the linear (or quadratic) regression coefficient linked to the inbreeding coefficient of each individual or, in more recent studies, to founder-specific inbreeding coefficients. Going beyond generalizing to these traditional scenarios, o...

the objective of this study was to determine the inbreeding depression on growth traits in moghani sheep. pedigree information of 8836 animals collected during the years of 1987 to 2006 by moghani breed center in jafar abad moghan, were used for analysis. the base population year was 1988. analysis of the records was performed by asreml software. inbreeding depression was estimated as the regre...

Purdue University Cooperative Extension Service West Lafayette, IN 47907 Author: David S. Buchanan, Oklahoma State University, Reviewers: Kreg Leymaster, USDA MARC, Clay Center NE; Ken Stalder, Univ. of Tennessee, Jackson, TN; William Luce, Oklahoma State Univ., Stillwater, OK Inbreeding is the mating of individuals that are related. In the strict sense, all members of a breed are related. As a...

Inbreeding is defined as half of the genetic relationship between an animal’s parents. For example, the offspring from a mating of animals A and B, which have the same father, will have 12.5 percent inbreeding, because the genetic relationship between A and B is 25 percent. Statistical methods to select the best sires of each generation have been developed, making it feasible to achieve any pos...

The traditional quantitative genetics model was used as the unifying approach to derive six existing and new definitions of genomic additive and dominance relationships. The theoretical differences of these definitions were in the assumptions of equal SNP effects (equivalent to across-SNP standardization), equal SNP variances (equivalent to within-SNP standardization), and expected or sample SN...

The present study was performed to study the effect of inbreeding on the pre-weaning growth traits including the birth weight (BW), weaning weight (WW), average daily gain (ADG), Kleiber ratio (KR) and lamb survival from birth to weaning (SUR) in Baluchi, Iran-Black and Zandi sheep. Significant positive inbreeding trends were found only for Baluchi and Iran-Black breeds as 0.038 and 0.278, resp...