دورية أكاديمية
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Correlated responses on growth traits after two-stage selection for ovulation rate and litter size in rabbits.

التفاصيل البيبلوغرافية
العنوان: Correlated responses on growth traits after two-stage selection for ovulation rate and litter size in rabbits.
المؤلفون: Peiró R; Instituto de Ciencia y Tecnología Animal, Universitat Politècnica de València, P.O. Box 22012, 46071 Valencia, Spain., Badawy AY; Instituto de Ciencia y Tecnología Animal, Universitat Politècnica de València, P.O. Box 22012, 46071 Valencia, Spain., Blasco A; Instituto de Ciencia y Tecnología Animal, Universitat Politècnica de València, P.O. Box 22012, 46071 Valencia, Spain., Santacreu MA; Instituto de Ciencia y Tecnología Animal, Universitat Politècnica de València, P.O. Box 22012, 46071 Valencia, Spain.
المصدر: Animal : an international journal of animal bioscience [Animal] 2019 Nov; Vol. 13 (11), pp. 2457-2462. Date of Electronic Publication: 2019 Jun 26.
نوع المنشور: Journal Article
اللغة: English
بيانات الدورية: Publisher: Elsevier Country of Publication: England NLM ID: 101303270 Publication Model: Print-Electronic Cited Medium: Internet ISSN: 1751-732X (Electronic) Linking ISSN: 17517311 NLM ISO Abbreviation: Animal Subsets: MEDLINE
أسماء مطبوعة: Publication: 2021- : [London] : Elsevier
Original Publication: Cambridge, England : Cambridge University Press
مواضيع طبية MeSH: Litter Size/*genetics , Ovulation/*genetics , Rabbits/*physiology, Animals ; Bayes Theorem ; Body Weight/genetics ; Female ; Male ; Phenotype ; Pregnancy ; Rabbits/genetics ; Rabbits/growth & development ; Selection, Genetic ; Weaning
مستخلص: Rabbit commercial maternal lines are usually selected for litter size (LS) and paternal lines for growth rate (GR). Line OR_LS was selected by ovulation rate (OR) and LS to improve LS more efficiently. In this study, growth traits of line OR_LS were evaluated by estimating the correlated response on weaning weight (WW), slaughter weight (SW) and GR during fattening period as well as their variability (DWW, DSW and DGR, respectively). Data were analyzed using Bayesian inference methods. Heritability estimates were low for growth traits (0.09, 0.13 and 0.14 for WW, SW and GR, respectively) and negligible for growth traits variability (0.01, 0.004 and 0.01 for DWW, DSW and DGR, respectively). Moderate common litter effect ratio (c2; 0.35, 0.28 and 0.27) and low maternal effect ratio (m2; 0.11, 0.05 and 0.01) were obtained for WW, SW and GR, respectively. Both c2 and m2 were lower at slaughter than at weaning. In addition, low common litter effect and negligible maternal effect were observed for growth traits variability. Genetic correlations between LS and both growth traits and their variability were close to zero. Positive genetic correlations were observed between OR and growth traits (0.19, 0.38 and 0.36 for WW, SW and GR, respectively) as well as between OR and growth traits variability (0.35, 0.62 and 0.20 for DWW, DSW and DGR, respectively). Positive correlated responses in both periods were obtained for growth traits, WW, SW and GR (0.037, 0.156 and 0.110 kg, respectively). The correlated response found in growth traits might be due to the positive genetic correlations between OR and these traits. However, selection for OR and LS using independent culling levels did not modify the growth traits variability. Therefore, no negative consequences on growth traits can be expected in current commercial maternal lines.
فهرسة مساهمة: Keywords: genetic parameters; growth rate; growth traits variability; slaughter weight; weaning weight
تواريخ الأحداث: Date Created: 20190627 Date Completed: 20200117 Latest Revision: 20230905
رمز التحديث: 20231215
DOI: 10.1017/S1751731119001423
PMID: 31241035
قاعدة البيانات: MEDLINE
الوصف
تدمد:1751-732X
DOI:10.1017/S1751731119001423