Autogenous transfer of intracytoplasmic sperm injection-produced equine embryos into the uterus of the oocyte donor during the same oestrous cycle
J. B. Rossini A , J. Rodriguez A B , D. R. Bresnahan A C , J. E. Stokes A and E. M. Carnevale A DA Equine Reproduction Laboratory, Department of Biomedical Sciences, Colorado State University, 3101 Rampart Road, Fort Collins, CO 80521, USA.
B Present address: Vista Equine Colorado, 5412 E County Road 32E, Fort Collins, CO 80528, USA.
C Present address: Department of Animal Science, Berry College, Mount Berry, GA 30149-5003, USA.
D Corresponding author. Email: elaine.carnevale@colostate.edu
Reproduction, Fertility and Development 31(12) 1912-1916 https://doi.org/10.1071/RD19253
Submitted: 30 June 2019 Accepted: 4 September 2019 Published: 4 October 2019
Abstract
The clinical use of intracytoplasmic sperm injection (ICSI) in horses usually involves the transfer of embryos into recipient mares, resulting in substantial cost increases. This is essential when subfertile mares are oocyte donors; but some donors are fertile, with ICSI compensating for limited or poor-quality spermatozoa. Fertile oocyte donors could carry pregnancies, eliminating the need for a recipient. We assessed the potential of using oocyte donors as recipients for their own ICSI-produced embryos during the same cycle. Donors in oestrus and with large dominant follicles were administered ovulation-inducing compounds to cause follicle and oocyte maturation. Maturing oocytes were collected, cultured and fertilised using ICSI. At 6 or 7 days after ICSI, developing blastocysts were transferred into respective donors’ uteri, and pregnancy rates were determined. Twenty follicles were aspirated from nine mares and 12 oocytes were collected. After ICSI, 10 of the 12 oocytes (83%) cleaved, and eight (67% of injected oocytes) developed into blastocysts for transfer. Five pregnancies resulted from the eight transferred embryos (pregnancy rate 62% per embryo and 42% per sperm-injected oocyte). Following this synchronisation regime, ICSI-produced embryos can be transferred into oocyte donors’ uteri during the same cycle, allowing donors to carry pregnancies after assisted fertilisation.
Additional keywords: embryo transfer, mare, recipient.
References
Allen, W. R., Kydd, J., Boyle, M. S., and Antczak, D. F. (1985). Between-species transfer of horse and donkey embryos: a valuable research tool. Equine Vet. J. 17, 53–62.| Between-species transfer of horse and donkey embryos: a valuable research tool.Crossref | GoogleScholarGoogle Scholar |
Carnevale, E. M. (2016). Advances in collection, transport and maturation of equine oocytes for assisted reproductive techniques. Vet. Clin. North Am. Equine Pract. 32, 379–399.
| Advances in collection, transport and maturation of equine oocytes for assisted reproductive techniques.Crossref | GoogleScholarGoogle Scholar | 27726987PubMed |
Carnevale, E. M., and Maclellan, L. J. (2006). Collection, evaluation, and use of oocytes in equine assisted reproduction. Vet. Clin. North Am. Equine Pract. 22, 843–856.
| Collection, evaluation, and use of oocytes in equine assisted reproduction.Crossref | GoogleScholarGoogle Scholar | 17129807PubMed |
Carnevale, E. M., and Sessions, D. R. (2012). In vitro production of equine embryos. J. Equine Vet. Sci. 32, 367–371.
| In vitro production of equine embryos.Crossref | GoogleScholarGoogle Scholar |
Carnevale, E. M., Ramirez, R. J., Squires, E. L., Alvarenga, M. A., and McCue, P. M. (2000). Factors affecting pregnancy rates and early embryonic death after equine embryo transfer. Theriogenology 54, 981–987.
| Factors affecting pregnancy rates and early embryonic death after equine embryo transfer.Crossref | GoogleScholarGoogle Scholar | 11097049PubMed |
Carnevale, E. M., Stokes, J. E., Squires, E. L., Campos-Chillon, L. F., Altermatt, J., and Suh, T. K. (2007). Clinical use of intracytoplasmic sperm injection in horses. In ‘Proceedings of the 53rd Annual Convention of the American Association of Equine Practitioners, Orlando, FL, USA’. p. 560. [Abstract] (American Association Equine Practitioners: Lexington; USA.)
Carnevale, E. M., Stokes, J. E., Rodriguez, J. S., and McCue, P. M. (2014). Autogenous transfers of intracytoplasmic sperm injection-produced equine embryos into oocyte donors’ uteri. Reprod. Fertil. Dev. 26, 204.
| Autogenous transfers of intracytoplasmic sperm injection-produced equine embryos into oocyte donors’ uteri.Crossref | GoogleScholarGoogle Scholar |
Colleoni, S., Barbacini, S., Necci, D., Duchi, R., Lazzari, G., and Galli, C. (2007). Application of ovum pick-up, intracytoplasmic sperm injection and embryo culture in equine practice. In ‘Proceedings of the 53rd Annual Convention of the American Association of Equine Practitioners, Orlando, FL, USA’. (Ed. EM Green) p. 554–559. (American Association of Equine Practitioners: Lexington; USA.)
Duchamp, G., Bezard, J., and Palmer, E. (1995). Oocyte yield and the consequences of puncture of all follicles larger than 8 mm in mares. Biol. Reprod. Mono. 1, 223–241.
| Oocyte yield and the consequences of puncture of all follicles larger than 8 mm in mares.Crossref | GoogleScholarGoogle Scholar |
Ginther, O. J. (1988). Ultrasonic imaging of equine ovarian follicles and corpora lutea. Vet. Clin. North Am. Equine Pract. 4, 197–213.
| Ultrasonic imaging of equine ovarian follicles and corpora lutea.Crossref | GoogleScholarGoogle Scholar | 3044535PubMed |
Ginther, O.J. (1992). ‘Reproductive Biology of the Mare: Basic and Applied Aspects.’ (Equiservices Publishing: Cross Plains.)
Ginther, O.J. (1995). ‘Ultrasonic Imaging and Animal Reproduction: Horses.’ (Equiservices Publishing: Cross Plains.)
Ginther, O. J., and Pierson, R. A. (1984). Ultrasonic anatomy and pathology of the equine uterus. Theriogenology 21, 505–516.
| Ultrasonic anatomy and pathology of the equine uterus.Crossref | GoogleScholarGoogle Scholar | 16725900PubMed |
Hatzel, J. N., McCue, P. M., Ferris, R. A., Stokes, J. E., and Carnevale, E. M. (2018). Clinical autogenous transfers into the oocyte donor’s uterus of embryos produced by intracytoplasmic sperm injection. J. Equine Vet. Sci. 66, 196.
| Clinical autogenous transfers into the oocyte donor’s uterus of embryos produced by intracytoplasmic sperm injection.Crossref | GoogleScholarGoogle Scholar |
Hinrichs, K. (2010). In vitro production of equine embryos: state of the art. Reprod. Domest. Anim. 45, 3–8.
| In vitro production of equine embryos: state of the art.Crossref | GoogleScholarGoogle Scholar | 20591059PubMed |
Hinrichs, K. (2013). Assisted reproduction techniques in the horse. Reprod. Fertil. Dev. 25, 80–93.
| Assisted reproduction techniques in the horse.Crossref | GoogleScholarGoogle Scholar |
Kelleman, A. A. (2013) Equine pregnancy and clinical applied physiology. In ‘Proceedings of the 53rd Annual Convention of the American Association of Equine Practitioners, Nashville, TN, USA.’ pp. 350–358. (American Association of Equine Practitioners: Lexington; USA.)
McCue, P. M., and Squires, E. L. (2015). ‘Equine Embryo Transfer.’ (Teton NewMedia: Jackson.)
McCue, P. M., Ferris, R. A., Stokes, J., Hatzel, J., Trundell, D., and Carnevale, E. M. (2016). Pregnancy rate and pregnancy loss after transfer of in vivo or in vitro derived equine embryos. J. Equine Vet. Sci. 41, 70.
| Pregnancy rate and pregnancy loss after transfer of in vivo or in vitro derived equine embryos.Crossref | GoogleScholarGoogle Scholar |
McKinnon, A. O., Wheeler, M. B., Camevale, E. M., and Squires, E. L. (1986). Oocyte transfer in the mare: preliminary observations. J. Equine Vet. Sci. 6, 306–309.
| Oocyte transfer in the mare: preliminary observations.Crossref | GoogleScholarGoogle Scholar |
McKinnon, A. O., Carnevale, E. M., Squires, E. L., Voss, J. L., and Seidel, G. E. (1988). Heterogenous and xenogenous fertilization of in vivo matured equine oocytes. J. Equine Vet. Sci. 8, 143–147.
| Heterogenous and xenogenous fertilization of in vivo matured equine oocytes.Crossref | GoogleScholarGoogle Scholar |
Murphy, B. D. (2000). Models of luteinization. Biol. Reprod. 63, 2–11.
| Models of luteinization.Crossref | GoogleScholarGoogle Scholar | 10859235PubMed |
Pozor, M. A., Sheppard, B., Kinrichs, K., Kelleman, A. A., Macpherson, M. L., Runcan, E., Choi, Y. H., Diaw, M., and Mathews, P. M. (2016). Placental abnormalities in equine pregnancies generated by SCNT from one donor horse. Theriogenology 86, 1573–1582.
| Placental abnormalities in equine pregnancies generated by SCNT from one donor horse.Crossref | GoogleScholarGoogle Scholar | 27325574PubMed |
Valenzuela, O. A., Couturier-Tarrade, A., Choi, Y. H., Aubriere, M. C., Ritthaler, J., Chavatte-Palmer, P., and Hinrichs, K. (2018). Impact of equine assisted reproductive technologies (standard embryo transfer or intracytoplasmic sperm injection (ICSI) with in vitro culture and embryo transfer) on placenta and foal morphometry and placental gene expression. Reprod. Fertil. Dev. 30, 371–379.
| Impact of equine assisted reproductive technologies (standard embryo transfer or intracytoplasmic sperm injection (ICSI) with in vitro culture and embryo transfer) on placenta and foal morphometry and placental gene expression.Crossref | GoogleScholarGoogle Scholar | 28735601PubMed |