Effect of ovarian cystic or haemorrhagic follicles on embryo recovery and survival after transfer in hCG-ovulated rabbits

García-Ximénez, F.; Vicente, J.S.

doi:10.1051/rnd:19920207

Cited by 18 publications

(14 citation statements)

References 5 publications

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“…Early embryo survival at 30 h post-mating was similar to those obtained by Torres et al (1987b), García-Ximénez andVicente (1992), Bolet and Theau-Clement (1994) and Peiró et al (2007) in the first stages of gestation in maternal rabbit lines. Similar EES were found between ULO and intact females, suggesting unilateral ovariectomy did not produce an important hormonal imbalance leading to increased embryo losses, as occurs when hormone-induced superovulation is used (Tsiligianni et al, 2004;Mehaisen et al, 2006).…”

Section: Discussionsupporting

confidence: 88%

“…Embryonic stage of development obtained at 30 h of gestation was in accordance with those obtained in maternal lines by Ménézo and Renard (1991), García-Ximénez and Vicente (1992) and Peiró et al (2007). Similar embryonic stage of development between ULO and intact females was in concordance with no difference in EES.…”

Section: Discussionsupporting

confidence: 88%

“…Fertilisation rate was high, agreeing with results obtained by other authors in rabbits (Torres et al, 1987b;García-Ximénez and Vicente, 1992;Bolet and Theau-Clement, 1994). There is no information on the effect of unilateral ovariectomy on fertilisation rate in rabbits.…”

Section: Discussionsupporting

confidence: 88%

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The effect of unilateral ovariectomy on early embryonic survival and embryo development in rabbits

et al. 2014

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Unilateral ovariectomy can be used to study uterine capacity in rabbits because an overcrowding of the functional uterine horn is produced. Due to the uterus duplex, the rabbit is the ideal model for such studies. However, this technique may affect embryo survival. The aim of this work is to study the effect of unilateral ovariectomy on early embryo survival and development in rabbit. A total of 101 unilateral ovariectomised females and 52 intact females were compared after slaughter at 30 h post-mating. Early embryo survival was estimated as the ratio between number of embryo recovered and ovulation rate. No differences were found between intact and unilaterally ovariectomised females in this trait. Unilateral ovariectomy did not change embryo development, measured as the number of embryo cells. Variability of embryo development was not affected either. At 30 h post-mating, the majority of embryos (86.2%) were 4-cell stage. Embryo quality was evaluated according to morphological criteria. No difference in embryo quality between intact and unilaterally ovariectomised females was found. Therefore, unilateral ovariectomy performed before puberty in rabbit does not modify early embryo survival and development.

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Section: Discussionsupporting

confidence: 88%

Section: Discussionsupporting

confidence: 88%

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The effect of unilateral ovariectomy on early embryonic survival and embryo development in rabbits

et al. 2014

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“…A larger number of haemorrhagic follicles was found in Synthetic line. García-Ximénez and Vicente (1992) also found that the presence of haemorrhagic follicles did not affect ovulation rate, but negatively affected fertilization and embryo survival. These finding would be in agreement with the lower fertilization rate and embryo survival found in Synthetic line than in Local population, although these differences were not relevant.…”

Section: Discussionmentioning

confidence: 87%

Ovulation rate and early embryonic survival rate in female rabbits of a synthetic line and a local Algerian population

et al. 2016

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A higher litter size at birth has been reported in female rabbits from a Synthetic line than in those of the Local Algerian population. The aim of this work was to analyse whether this difference in litter size was due to a higher ovulation rate and/or embryonic survival rate in Synthetic line than in Local Algerian population. In total, 24 multiparous female rabbits from Synthetic line and 23 from Local population were used in this experiment. Litter size at birth was recorded up to the first 3 parities. Litter size was 20% higher in Synthetic line than Local population. At their 4 th gestation, the females were euthanized at 72 h post coitum. Synthetic line females had 50% more ova and embryos than those of Local population (+4.42 ova and +3.92 embryos, respectively). Synthetic line displayed a lower percentage of normal embryos and a larger number of unfertilized oocytes than Local population (-2.81% and +0.64 oocytes, respectively), but differences were not relevant. Synthetic line showed a lesser embryonic stage of development at 72 h post coitum, showing a higher percentage of early morulae (31.50 vs. 8.50%) and a lower percentage of compact morulae (51.45 vs. 78.65%) than Local population. No relevant difference was found for early embryonic survival rate between Synthetic line and Local population. In conclusion, the difference in litter size was mainly due to a higher ovulation rate in the Synthetic line, allowing more embryos to develop in this line.

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“…The effect of haemorrhagic follicles was included because several authors observed a negative effect on ovulation rate, fertilization rate and survival traits (García-Ximénez and Vicente, 1992) which may be due to an unbalanced hormonal profile (Hunter, 1982).…”

Section: Statistical Analysesmentioning

confidence: 99%

Effect of divergent selection for uterine capacity on embryonic survival and development at 30 h post-mating in unilaterally ovariectomized rabbit females

et al. 2015

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Uterine capacity has been proposed as an indirect way to increase litter size. The aim of this work is to study the effect of a divergent selection for uterine capacity (UC) on reproductive traits at 30 h post mating in unilaterally ovariectomized (ULO) females. A total of 62 ULO females from the high line (selected to increase UC) and 39 ULO females from the low line (selected to decrease UC) were used. Ovulation rate was estimated as the number of corpora haemorrhagica and early embryonic survival was estimated as the ratio between number of embryos and ovulation rate. No differences in ovulation rate and early embryonic survival at 30 h post mating were found between high and low lines. Selection for UC did not change the embryonic stage of development either, the majority of embryos being at 4-cell stage. Additionally, the embryos were evaluated according to morphological criteria and more than 95% of the embryos were evaluated as good or fair quality. No differences in embryonic morphological criteria between high and low lines were found either. Thus, selection for UC did not modify the early embryonic survival and development in ULO females at 30 h post mating.

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Effect of ovarian cystic or haemorrhagic follicles on embryo recovery and survival after transfer in hCG-ovulated rabbits

Cited by 18 publications

References 5 publications

The effect of unilateral ovariectomy on early embryonic survival and embryo development in rabbits

The effect of unilateral ovariectomy on early embryonic survival and embryo development in rabbits

Ovulation rate and early embryonic survival rate in female rabbits of a synthetic line and a local Algerian population

Effect of divergent selection for uterine capacity on embryonic survival and development at 30 h post-mating in unilaterally ovariectomized rabbit females

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