Genetic parameters of litter traits in a local Baladi black rabbit in Egypt

Abstract: Some genetic parameters on Baladi Black (BB) litter trait rabbits were evaluated through two years, using Multi-Trait Derivative-Free Restricted Maximum Likelihood (MTDFREML). A total of 111 litters from 49 does, 12 dams and 7 sires were raised to measure some litter traits (litter sizes and weights at birth, 21 days and at weaning). The animal model analysis included parity and month of birth as fixed effects as well as animal and permanent environmental effect as random effects. Heritability’s of considered traits were somewhat low being 0.03, 0.01, 0.01 and 0.01, 0.08 and 0.09 for litter sizes and weights at the three ages studied respectively. Also, permanent environmental effects were low for both litter sizes and weights at the three ages studied (0.00002, 0.02 and 0.000045 and 0.00042, 0.0086 and 0.0006).
Key words: Litter traits, heritability, correlation.
Publication year 2012
Pages 37-41
Availability location معهد بحوث الانتاج الحيوانى - شارع نادى الصيد- الدقى - الجيزة
Availability number
Organization Name
City شرم الشيخ
serial title 10 th World Rabbit Congress
Author(s) from ARC
Agris Categories Animal husbandry
Heritability. Litter size. Rabbits. Weaning. Weight.
Proposed Agrovoc correlation;Litter traits;
Publication Type Conference/Workshop