دورية أكاديمية
Correlated responses on litter size traits and survival traits after two-stage selection for ovulation rate and litter size in rabbits.
| العنوان: | Correlated responses on litter size traits and survival traits after two-stage selection for ovulation rate and litter size in rabbits. |
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| المؤلفون: | Badawy AY; Instituto de Ciencia y Tecnología Animal,Universitat Politècnica de València,P.O. Box 22012,46071 Valencia,Spain., Peiró R; 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 Mar; Vol. 13 (3), pp. 453-459. Date of Electronic Publication: 2018 Aug 20. |
| 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: | Selection, Genetic*, Litter Size/*physiology , Longevity/*physiology , Ovulation/*physiology , Rabbits/*genetics , Rabbits/*physiology, Animals ; Bayes Theorem ; Breeding ; Female ; Litter Size/genetics ; Longevity/genetics ; Ovulation/genetics ; Parturition ; Pregnancy |
| مستخلص: | Farmer profit depends on the number of slaughter rabbits. The improvement of litter size (LS) at birth by two-stage selection for ovulation rate (OR) and LS could modify survival rate from birth to slaughter. This study was aiming to estimate direct and correlated response on LS traits and peri- and postnatal survival traits in the OR_LS rabbit line selected first only for OR (first period) and then for OR and LS using independent culling levels (second period). The studied traits were OR, LS measured as number of total born, number of kits born alive (NBA) and dead (NBD), and number of kits at weaning (NW) and young rabbits at slaughter (NS). Prenatal survival (LS/OR) and survival at birth (NBA/LS), at weaning (NW/NBA) and at slaughter (NS/NW) were also studied. Data were analysed using Bayesian inference methods. Heritability for LS traits were low, 0.07 for NBA, NW and NS. Survival traits had low values of heritability 0.07, 0.03 and 0.03 for NBA/LS, NW/NBA and NS/NW, respectively. After six generations of selection by OR (first period), a small increase in NBD and a slight decrease in NBA/LS were found. However, no correlated responses on NW/NBA and NS/NW were observed. After 11 generations of two-stage selection for OR and LS (second period), correlated responses on NBA, NW and NS were 0.12, 0.12 and 0.11 kits per generation, respectively, whereas no substantial modifications on NBA/LS, NW/NBA and NS/NW were found. In conclusion, two-stage selection improves the number of young rabbits at slaughter without modifying survival from birth to slaughter. |
| فهرسة مساهمة: | Keywords: kits dead; perinatal survival; post-weaning survival; pre-weaning survival; prenatal survival |
| تواريخ الأحداث: | Date Created: 20180821 Date Completed: 20190409 Latest Revision: 20190409 |
| رمز التحديث: | 20240628 |
| DOI: | 10.1017/S1751731118002033 |
| PMID: | 30124175 |
| قاعدة البيانات: | MEDLINE |
Full Text Finder | تدمد: | 1751-732X |
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| DOI: | 10.1017/S1751731118002033 |