Feed restriction regime in a rabbit line selected for growth rate alters oocyte maturation manifested by alteration in MSY2 gene expression

C Naturil‐Alfonso; DS Peñaranda; JS Vicente; F Marco‐Jiménez

doi:10.1111/rda.13006

journal article Jun 18, 2017

Feed restriction regime in a rabbit line selected for growth rate alters oocyte maturation manifested by alteration in MSY2 gene expression

C Naturil‐Alfonso DS Peñaranda JS Vicente F Marco‐Jiménez

Reproduction in Domestic Animals Vol. 52 No. 6 pp. 976-984 · Wiley

View at Publisher Save 10.1111/rda.13006

Abstract

ContentsYoung rabbit females selected for growth rate may have nutritional needs, which may not be met with the common practice of feed restriction during rearing in commercial rabbit production. The aim of this study was to analyse whether two different feeding programmes: ad libitum or restricted (130 g/day) feeding, applied in young rabbit females for 1 month at the end of rearing, could modulate the origin of ovulation process and the quality of the oocytes. At 16 weeks of age, 34 females were randomly assigned to restricted or ad libitum feeding, maintaining these conditions for a month. Then, in an initial experiment, transcriptional profiling of hypothalamus–hypophysis tissue was performed to assess failure to ovulate. In the second experiment, the gene expression analysis of some candidate genes related to oocytes quality was performed. Our results demonstrated that neither of the two feeding programmes modified the transcription of hypothalamus–hypophysis tissue, while the only differences in MSYR expression were found in in vivo mature oocytes ready for successful fertilization. Specifically, MSYR was over‐expressed in oocytes from females fed ad libitum. MSYR is one of the most abundant proteins in the oocyte and has proven to be a key regulator of maternal RNA transcription and translation. This finding suggests that MSYR gene is a promising gene in our understanding of the relationship between high growth rate and reproductive performance decline.

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Details

Published: Jun 18, 2017
Vol/Issue: 52(6)
Pages: 976-984
License: View

Authors

C

C Naturil‐Alfonso

Institute of Science and Animal Technology Laboratorio de Biotecnología de la Reproducción Universitat Politécnica de València Valencia Spain

D

DS Peñaranda

Institute of Science and Animal Technology Laboratorio de Biotecnología de la Reproducción Universitat Politécnica de València Valencia Spain

J

JS Vicente

Institute of Science and Animal Technology Laboratorio de Biotecnología de la Reproducción Universitat Politécnica de València Valencia Spain

F

F Marco‐Jiménez

Institute of Science and Animal Technology Laboratorio de Biotecnología de la Reproducción Universitat Politécnica de València Valencia Spain

Funding

Secretaría de Estado de Investigación, Desarrollo e Innovación Award: AGL2014-53405-C2-1-P

Education Ministry of the Valencian Regional Government Award: ACIF⁄2013⁄296

Cite This Article

C Naturil‐Alfonso, DS Peñaranda, JS Vicente, et al. (2017). Feed restriction regime in a rabbit line selected for growth rate alters oocyte maturation manifested by alteration in MSY2 gene expression. Reproduction in Domestic Animals, 52(6), 976-984. https://doi.org/10.1111/rda.13006

Feed restriction regime in a rabbit line selected for growth rate alters oocyte maturation manifested by alteration in MSY2 gene expression

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