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Assessment of Genetic Capability for Post-Weaning Growth Traits of Reciprocal Cross between Gabali and V-Line Rabbits Using an Animal Model

(2020) Assessment of Genetic Capability for Post-Weaning Growth Traits of Reciprocal Cross between Gabali and V-Line Rabbits Using an Animal Model. World's Veterinary Journal. pp. 405-413. ISSN 23224568 (ISSN)

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Official URL: https://www.scopus.com/inward/record.uri?eid=2-s2....

Abstract

This study aimed to assess the conceivable impact of hereditary factors on the crossbreeding rabbit groups set up by proportional going between Sinai Gabali and V-Line. Reciprocal cross on the post-weaning performances was performed by estimating the genetic capability for their crosses. The study samples included two pure rabbit breeds (a male Saini Gabali (G) and a female V-Line (V)), and reciprocal crosses to compromise 10 groups. Records of 448 kits delivered by 45 does and 16 bucks were utilized to estimate Heritability (h2), genetic and phenotypic correlations, and breeding values of litter weight traits. First generation was created from the consequences of four parities (½G ½V, and ½ V ½G; sire breed was demonstrated first). Weaning was implemented on the 28th day of the kits’ age. Post-weaning litter traits were measured Body weight (BW) at 4, 5, 6, 8, 10, and 12 weeks of their age; and average daily gain was measured during 4-8 weeks (ADG4-8, ADG4-12, ADG8-10, and ADG8-12). Data were examined by animal model, which was performed utilizing derivate free limited maximum likelihood. The results revealed that h2 was moderate for both breeds, and its reciprocal cross ranged from 0.2 to 0.25, and BW at weaning was 0.22 ± 0.07. Meanwhile, there was a positive genetic correlation between BW and ADG at different age ranges (ranged 0.02 to 0.77, 0.04 to 0.76, respectively). Assessments of environmental correlation between BW at different age ranges were negative, except of those between BW8 and BW12 which were positive, but not significant. Additionally, the progeny had higher predicting breeding values for BW at 4, 8,10, and 12 weeks for both breeds, but that was obtained from G×V exceeding those from their reciprocal cross. In conclusion, direct additive variance was considerably effective, and consequently body weight at weaning and post-weaning growth traits could be improved by utilizing bucks of Sinai Gabali with doesof V-line based on the performance of their progenies, and selection of sires and dams.

Item Type: Article
Keywords: Genetic correlation, Heritability, Post-weaning, Sinai gabali, V-line, Weaning weight
Subjects: Q Science > Q Science (General)
S Agriculture > SF Animal culture
Divisions: World's Veterinary Journal (WVJ)
Page Range: pp. 405-413
Journal or Publication Title: World's Veterinary Journal
Journal Index: Scopus
Volume: 10
Number: 3
Publisher: Scienceline Publication, Ltd
Identification Number: https://doi.org/10.36380/scil.2020.wvj50
ISSN: 23224568 (ISSN)
Depositing User: Dr. Alireza Sadeghi
URI: http://eprints.science-line.com/id/eprint/505

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