Pedigree-Based Description of Danubia Alba Rabbit Breed Lines
János Posta, Csongor Demeter, Zoltán Német, Máté Sándor, Zsolt Gerencsér, Zsolt Matics

TL;DR
This study analyzes the genetic diversity and breeding history of Danubia Alba rabbit lines to support sustainable breeding practices.
Contribution
The study provides a detailed pedigree-based analysis of genetic variability and inbreeding in Danubia Alba rabbit lines.
Findings
Genetic variability in Danubia Alba rabbit lines has decreased, likely due to selection practices.
Inbreeding levels are primarily influenced by previously fixed alleles rather than recent genetic loss.
Effective population sizes suggest no critical risk for maintaining genetic diversity in these rabbit lines.
Abstract
Maintenance of genetic diversity is important for commercial livestock breeds as well. The Danubia Alba rabbit is a synthetic breed; its breeding goal is meat production. The primary goal of our study was to provide information about the demographic history of Danubia Alba and support the breeder company during its selection work. Besides homozygosity, the deepness of the pedigree, the generation interval, and gene variability were evaluated. We found that the lines of genetic variability decreased, probably due to the selection work. The homozygosity of the lines was estimated using different methods, like Ballou’s, Wright’s, and Kalinowski’s inbreeding coefficients. Though current inbreeding coefficients were different among lines, the present inbreeding level came mostly from previously fixed alleles for each of them. Effective population sizes were estimated, and none of the lines…
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Taxonomy
TopicsRabbits: Nutrition, Reproduction, Health · Ruminant Nutrition and Digestive Physiology · Genetic and phenotypic traits in livestock
