Genetic parameters of rabbit semen traits and male fertilising ability
| Autor: | M. Theau-Clément, A. Sanchez, J.M. Brun, E. Ailloud, G. Saleil |
|---|---|
| Přispěvatelé: | École nationale supérieure agronomique de Toulouse [ENSAT], Génétique Physiologie et Systèmes d'Elevage (GenPhySE ), École nationale supérieure agronomique de Toulouse [ENSAT]-Institut National de la Recherche Agronomique (INRA)-Ecole Nationale Vétérinaire de Toulouse (ENVT), Institut National Polytechnique (Toulouse) (Toulouse INP), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Institut National Polytechnique (Toulouse) (Toulouse INP), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées |
| Rok vydání: | 2015 |
| Předmět: |
0301 basic medicine
Male [SDV]Life Sciences [q-bio] medicine.medical_treatment media_common.quotation_subject Semen Fertility Rabbit Artificial insemination Biology Semen analysis Breeding Insemination Semen collection Heritability Andrology 03 medical and health sciences Endocrinology Animal science Quantitative Trait Heritable Food Animals Pregnancy medicine Animals [INFO]Computer Science [cs] Insemination Artificial media_common 2. Zero hunger medicine.diagnostic_test urogenital system 0402 animal and dairy science 04 agricultural and veterinary sciences General Medicine 040201 dairy & animal science Sperm Semen Analysis 030104 developmental biology Animal Science and Zoology Female Rabbits |
| Zdroj: | Animal Reproduction Science Animal Reproduction Science, Elsevier Masson, 2016, 166, pp.15-21. ⟨10.1016/j.anireprosci.2015.12.008⟩ |
| ISSN: | 1873-2232 0378-4320 |
| Popis: | International audience; This study aimed to estimate genetic parameters for rabbit semen production, semen characteristics and fertilising ability following artificial insemination. It involved five successive batches of 30-36 bucks each, 22 weeks of semen collection, and 11 weeks of semen recording per batch. Semen analyses were based on 2312 ejaculates. A total of 2019 inseminations were performed on 674 females with semen from 236 ejaculates from 128 bucks. Heritability estimates of semen traits ranged from 0.05 to 0.18. At approximately 0.05-0.06 for pH, volume and mass motility, they were higher for concentration (0.10) and the total number of sperms per ejaculate (0.12), and even higher for motility traits based on computer-assisted semen analysis. The percentage of motile sperms had the highest heritability (0.18) and appeared to be a good candidate criterion to select for both sperm number and motility. The heritability estimates were close to zero for all three criteria of fertilising ability: fertility (F), prolificacy (live births, LB) and their product (LB per insemination). A permanent environmental effect of the male seemed to be higher for LB (0.04) than for F (0.01). The rabbit does accounted for approximately 10% of the variance of the three criteria. With respect to the female, the male contribution was negligible for fertility and in a ratio of 4-10 for the number of live births. In our experimental conditions, prolificacy would thus be more highly influenced by the buck than fertility. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|
Full Text from ScienceDirect