Effect of alterations in the quantity and composition of the pre-mating diet on embryo survival and foetal growth in the pig

Ferguson, Elizabeth M.; Slevin, J.; Edwards, Sandra A.; Hunter, M. G.; Ashworth, Cheryl

doi:10.1016/j.anireprosci.2005.11.007

Cited by 40 publications

(45 citation statements)

References 18 publications

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“…Oocytes were processed as described by Ferguson et al (2003), except that, wherever possible, oocytes were recovered from the largest 16 or 15 follicles from each gilt fed with the control or high fibre diet respectively. These numbers reflect the mean ovulation rates observed in our previous study using the same gilt genotype and nutritional regimens (Ferguson et al 2006) and are therefore considered to reflect the ovulatory population in both groups. Follicular size was measured, follicular fluid collected, oocyte cumulus complexes matured in 10% of the gilts' own follicular fluid and assessed as described by Ferguson et al (2003).…”

Section: Ovary and Oocyte Recoverymentioning

confidence: 99%

“…Specifically, feeding a high fibre diet during the oestrous cycle preceding mating increased embryo survival and reduced the number of litters containing intra-uterine growth retarded fetuses on day 27G 2 of pregnancy when compared with controls (Ferguson et al 2006). The mechanisms underlying these important benefits of a high fibre diet on embryo survival clearly warrant further study.…”

Section: Introductionmentioning

confidence: 99%

“…All gilts were individually fed 2.3 kg/day of a complete diet supplying 15.1% crude protein and 9.74 MJ net energy (NE)/kg until the beginning of the third oestrous cycle. Gilts were randomly assigned to receive either 2.4 kg/day of a 1.8!M (maintenance) control diet supplying 15.1% crude protein and 9.74 MJ NE/kg (nZ22) or 2.8 kg/day of a high fibre diet supplying 14.0% crude protein and 8.38 MJ NE/kg (nZ23) containing 50% unmolassed sugar beet pulp, as described by Ferguson et al (2006), to supply the same daily NE intake (23.4 MJ). Experimental diets were given during the third oestrous cycle, from the day after the first detection of oestrus (day 1; oestrusZday 0) until either slaughter on day 19 (nZ12 gilts per dietary treatment) or until insemination at the following oestrus.…”

Section: Experimental Animalsmentioning

confidence: 99%

“…Most of this prenatal loss occurs during the first month of pregnancy. There is increasing evidence that the diet consumed before mating can have a major impact on embryo survival (Zak et al 1997, Ashworth et al 1999a, Ferguson et al 2006, within litter uniformity in blastocyst size (Ashworth et al 1999b) and the incidence of runting (Ferguson et al 2006) in pigs.…”

Section: Introductionmentioning

confidence: 99%

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Beneficial effects of a high fibre diet on oocyte maturity and embryo survival in gilts

Ferguson¹,

Slevin²,

Hunter³

et al. 2007

Reproduction

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The present study examined the effects of feeding gilts a high fibre diet from the third post-pubertal oestrus until either day 19 of the same cycle or insemination at the following oestrus on oocyte maturity, embryo survival and associated changes in reproductive hormone concentrations. Gilts fed with the high fibre diet had lower circulating oestradiol concentrations on days 17, 18 and 19 of the cycle and increased LH pulse frequency on day 18. More oocytes recovered on day 19 from gilts receiving the high fibre diet were at metaphase II after 46-h culture in medium containing 10% of their own follicular fluid, despite fewer large (O7 mm) follicles in these gilts when compared with control animals. There was no effect of diet on ovulation rate, corpora lutea size or progesterone concentrations on days 10-12 after insemination, but embryo survival on days 27-29 after insemination was higher in gilts that received the high fibre diet. This study demonstrates that a high fibre diet that increases embryo survival also improves oocyte maturity and provides information on endocrine correlates that may shed light on underlying mechanisms.

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Section: Ovary and Oocyte Recoverymentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Experimental Animalsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Beneficial effects of a high fibre diet on oocyte maturity and embryo survival in gilts

Ferguson¹,

Slevin²,

Hunter³

et al. 2007

Reproduction

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show abstract

“…Literature review 4 increase in litter size was also observed in sows which had previously litters of 12 or less piglets and were then fed with supplementary dextrose and lactose during the last week of gestation and lactation (Van den Brand et al, 2009). A positive impact on oocyte maturity and embryo survival was also noted when gilts were fed with high fibre diets (Ferguson et al, 2006(Ferguson et al, , 2007.…”

Section: Selections For Larger Litter Sizementioning

confidence: 92%

Comparison of the behaviour of piglets raised in an artificial rearing system or reared by the sow

Rzezniczek

Gygax

Wechsler

et al. 2015

Applied Animal Behaviour Science

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Physiological alterations associated with intrauterine growth restriction in fetal pigs: Causes and insights for nutritional optimization

Wang

Feng

Liu

et al. 2017

Molecular Reproduction Devel

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Intrauterine growth restriction (IUGR) remains a major problem in swine production since the associated low birth weight leads to high rates of pre-weaning morbidity and mortality plus permanent retardation of growth and development. Complex biological events-including genetics, epigenetics, maternal maturity, maternal nutrition, placenta efficiency, uterine capacity, and other environmental factors-can affect fetal growth and development during late gestation, as well as maturity of oocytes, duration of estrus, and both implantation and placentation of conceptuses in uteri of sows. Understanding the physiological changes related to initiation and progress of IUGR are, therefore, of great importance to formulate nutritional strategies that can mitigate IUGR in gilts and sows. Altering the nutritional status of sows prior to mating and during early-, mid-, and late-gestation may be effective at increasing the uniformity of oocytes and conceptuses, decreasing variation among conceptuses during elongation and implantation, and preventing increases in within-litter variation in fetal weights during late gestation. This review summarizes current progress on physiological alterations responsible for IUGR fetuses, as well as possible nutritional interventions to prevent the initiation and continuation of IUGR in gilts and sows.

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Effect of alterations in the quantity and composition of the pre-mating diet on embryo survival and foetal growth in the pig

Cited by 40 publications

References 18 publications

Beneficial effects of a high fibre diet on oocyte maturity and embryo survival in gilts

Beneficial effects of a high fibre diet on oocyte maturity and embryo survival in gilts

Comparison of the behaviour of piglets raised in an artificial rearing system or reared by the sow

Physiological alterations associated with intrauterine growth restriction in fetal pigs: Causes and insights for nutritional optimization

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