Study of failures in a rabbit line selected for growth rate
| Autor: | Pilar García Rebollar, Jose S. Vicente, Raquel Lavara, Pilar Millán, C. Naturil-Alfonso, Francisco Marco-Jiménez |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2016 |
| Předmět: |
LH
medicine.medical_specialty media_common.quotation_subject medicine.medical_treatment ovulation failure Fertility Biology 03 medical and health sciences 0302 clinical medicine NEFA Internal medicine medicine Ovulation failure Growth rate Ovulation media_common lcsh:SF1-1100 Mating 030219 obstetrics & reproductive medicine lcsh:Veterinary medicine Leptin 0402 animal and dairy science 04 agricultural and veterinary sciences 040201 dairy & animal science mating Pregnancy rate Endocrinology lcsh:SF600-1100 Animal Science and Zoology Ovulation induction growth rate lcsh:Animal culture Luteinizing hormone |
| Zdroj: | World Rabbit Science, Vol 24, Iss 1, Pp 47-53 (2016) RiuNet. Repositorio Institucional de la Universitat Politécnica de Valéncia instname |
| ISSN: | 1989-8886 1257-5011 |
| Popis: | [EN] Selection for growth rate is negatively related with reproductive fitness. The aim of this work was to analyse the causes of fertility failure in rabbit does selected for growth rate and characterised for reproductive deficiencies (line R). In the experiment, 82 does were divided into 2 groups: naturally mated (NM) and artificially inseminated (AI), to relate luteinizing hormone (LH) concentration with ovulation induction and pregnancy rate by laparoscopic determination. Additionally, in 38 of these females ovulation rate and metabolites determination (leptin, NEFA, BOHB and glucose) were analysed and perirenal fat thickness measurement and live body weight (LBW) determined. The results showed that all ovulated does (both NM and AI) presented higher concentrations of LH than non-ovulated females. In addition, non-ovulated females showed high levels of leptin and BOHB, as well as LBW. Females from line R have an inherit reduced fertility due to ovulation failure as a consequence of a reduction in LH release, which could be explained by a heavier body weight and higher leptin concentrations. This work was supported by the Spanish Research Project AGL2011-30170-C02-01 (CICYT). Carmen Naturil-Alfonso was supported by a research grant from the Education Ministry of the Valencian Regional Government (programme VALi+d. ACIF/2013/296). English text version was revised by N. Macowan English Language Service. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|