Genetical And Environmental Factors Affecting The Performance of Broiler Rabbits

The present work aimed to investigate the most important productive traits such as litter size . litter weight, mortality rate from brith to weaning (at 5 weeks of age ) and rabbits body weight from 5 up till1 2 wee ks of age. It was also aimed to estimate heritability and repeatability and to quantify the average genetic . phenotypic and environmental variations and covariattion of litter traits and rabbits body weight. Non – genetic factors ( i.e. year and month of brith , parity and litter size at brith ) were also studied in order to correct for their influence on the productive traits to reach an accurate critical genetic appraisal.