Oocyte maturation and embryo survival in nulliparous female pigs (gilts) is improved by feeding a lupin-based high-fibre diet

A. C. Weaver, J. M. Kelly, K. L. Kind, K. L. Gatford, D. J. Kennaway, Paul Herde, W. H.E.J. Van Wettere

Research output: Contribution to journalArticle

6 Citations (Scopus)

Abstract

Inclusion of high levels of the high-fibre ingredient sugar-beet pulp in pre-mating diets has been shown to increase gonadotrophin concentrations and improve oocyte quality in nulliparous pigs (gilts). This study evaluated the effects of two alternative fibre sources on reproductive performance in gilts. Gilts received one of three diets from 3 weeks before puberty stimulation until Day 19 of the first oestrous cycle: control (39gkg-1 fibre), bran (500gkg-1 wheat bran, 65gkg-1 fibre) or lupin (350gkg-1 lupin, 118gkg-1 crude fibre). Diet did not affect circulating LH concentrations or ovarian follicle size. However, a higher percentage of oocytes collected from lupin-supplemented gilts reached metaphase II in vitro compared with those collected from bran-fed or control gilts (89±5% versus 72±5% and 66±5%, respectively; P<0.05). Furthermore, in a second experiment, gilts fed the same lupin-based diet before mating had improved embryo survival (92±5%) on Day 28 after mating compared with control gilts (76±4%; P<0.05). Therefore, feeding a high-fibre diet before mating can improve oocyte quality in gilts without changes in circulating LH, but this effect is dependent on the fibre source.

Original languageEnglish
Pages (from-to)1216-1223
Number of pages8
JournalReproduction, Fertility and Development
Volume25
Issue number8
DOIs
Publication statusPublished - 21 Oct 2013
Externally publishedYes

Keywords

  • bran
  • gonadotrophin
  • luteinising hormone

ASJC Scopus subject areas

  • Biotechnology
  • Reproductive Medicine
  • Animal Science and Zoology
  • Molecular Biology
  • Genetics
  • Endocrinology
  • Developmental Biology

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