Efficacy of Porcine Gonadotropins for Repeated Stimulation of Ovarian Activity for Oocyte Retrieval and In Vitro Embryo Production and Cryopreservation in Siberian Tigers (Panthera tigris altaica)1

@inproceedings{Crichton2003EfficacyOP,
  title={Efficacy of Porcine Gonadotropins for Repeated Stimulation of Ovarian Activity for Oocyte Retrieval and In Vitro Embryo Production and Cryopreservation in Siberian Tigers (Panthera tigris altaica)1},
  author={E. G. Crichton and E. Bedows and A. Miller-Lindholm and D. Baldwin and D. Armstrong and L. Graham and J. Joe Ford and J. O. Gj{\o}rret and P. Hyttel and C. Earle Pope and G. Vajta and N. Loskutoff},
  booktitle={Biology of reproduction},
  year={2003}
}
Abstract A comparison of the amino acid sequences demonstrated that Siberian tiger gonadotropins are more homologous with those of porcine than any other commercially available preparation. The present study measured the efficacy of repeated ovarian stimulation with purified porcine gonadotropins on the follicular, hormonal, and immunogenic responses in Siberian tigers as well as on the ability of oocytes retrieved by laparoscopic follicular aspiration to fertilize and cleave in vitro… Expand
Aspects of in vivo oocyte production, blastocyst development, and embryo transfer in the cat.
  • C. Pope
  • Medicine, Biology
  • Theriogenology
  • 2014
TLDR
Results of transferring morulae and/or blastocysts into synchronous recipients are described to emphasize evidence that appears to allude to an essential role for an intact zona pellucida in successful implantation and subsequent development in the cat. Expand
Effect of equine chorionic gonadotropin on the efficiency of superovulation induction for in vivo and in vitro embryo production in the cat.
TLDR
It is demonstrated that in vivo and in vitro embryo production were affected by the dosage of eCG; the best results were obtained with 200 IU. Expand
Embryo retrieval after hormonal treatment to control ovarian function and non-surgical artificial insemination in African lions (Panthera leo).
TLDR
Application of porcine FSH and porcines LH was shown to be effective for inducing follicular growth and ovulation, and this regimen appeared to be superior to protocols described earlier in terms of ovulation and fertilization rates. Expand
Ovarian and immunological responses to alternating exogenous gonadotropin regimens in the ocelot (Leopardus pardalis) and tigrina (Leopardus tigrinus)
TLDR
The female ocelots and tigrinas continued to respond to these alternating ovarian stimulation protocols after repeated use, despite the formation of anti-gonadotropin antibodies in some of the females, suggesting that the use of alternating gonadotropic regimens may permit more intensive reproductive management of these endangered cat species for conservation. Expand
Ovarian response to repeated administration of alternating exogenous gonadotropin regimens in the ocelot (Leopardus pardalis) and tigrinus (Leopardus tigrinus).
TLDR
The use of alternating gonadotropin regimens may permit more intensive reproductive management in these endangered cats, and female ocelots and tigrinus continued to respond to repeated alternating ovarian stimulation protocols. Expand
In vitro embryo production and embryo transfer in domestic and non-domestic cats.
TLDR
Over a 5-year interval, multiple laparoscopic oocyte retrievals were done in fishing cats, caracals and domestic cats after ovarian stimulation with gonadotropins, with the presence of corpora lutea at oocyte retrieval occurring in each species at a similar frequency. Expand
Effect of post-IVF developmental kinetics on in vitro survival of vitrified-warmed domestic cat blastocysts.
TLDR
Results indicate that IVF-derived domestic cat embryos that reached the blastocyst stage earlier can survive the Cryotop vitrification without a reduction in the parameters studied. Expand
In Vitro Production of Embryos from Prepubertal Holstein Cattle and Mediterranean Water Buffalo: Problems, Progress and Potential
Simple Summary In vitro embryo production using oocytes from prepubertal cattle and buffalo collected by laparoscopy can be used to produce embryos from genetically superior females. FollowingExpand
Applying embryo cryopreservation technologies to the production of domestic and black-footed cats.
TLDR
In vivo survival of vitrified domestic cat embryos was shown by the births of kittens after transfer into recipients and it was demonstrated that sperm and embryo cryopreservation could be combined with intra- and inter-species embryo transfer and integrated into the array of assisted reproductive techniques used for propagation of a rare and vulnerable felid species, the black-footed cat. Expand
LAPAROSCOPIC OVUM PICK-UP (LOPU): FROM ANIMAL PRODUCTION TO CONSERVATION
TLDR
Repeating LOPU procedures in the same female does not cause sequels with impact on the female's reproductive life, even when performed on prepubertal or wild animals. Expand
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The procedures used for stimulation, aspiration, and classification of COCs resulted in retrieval of a heterogeneous population of oocytes which, following IVF and IVC, displayed a high rate of developmental deviations. Expand
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Follicles subjected to aspiration appear capable of forming normal, functional CL and the birth of live young after embryo transfer unequivocally demonstrates the developmental competence of in vitro-fertilized carnivore oocytes. Expand
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It is concluded that this sequential regimen of human gonadotropins provides a cohort of oocytes from rhesus monkeys that will complete meiotic maturation and fertilize in vitro, with embryonic development proceeding in vitro and in vivo. Expand
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TLDR
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TLDR
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An exogenous gonadotropin regimen and a laparoscopic intrauterine artificial insem ination (AI) technique, previously developed in the domestic cat, were adapted and assessed for effectiveness in theExpand
Comparison of embryo recovery, embryo quality, oestradiol-17 beta and progesterone profiles in domestic cats (Felis catus) at natural or induced oestrus.
TLDR
The results indicate that fertilization rates and embryo quality in domestic cats appear to be compromised by the FSH treatment, probably because of altered oestradiol-17 beta and progesterone concentrations. Expand
Timing of ovulation after gonadotrophin induction and its importance to successful intrauterine insemination in the tiger (Panthera tigris).
TLDR
Results demonstrate the importance of the relationship between exogenous gonadotrophin treatment and onset of anaesthesia for laparoscopic examination and AI in tigers and indicate that ovulation success is high if anaesthesia/laparoscopy is performed after this time, and intrauterine insemination can result in healthy young. Expand
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