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Dobbie T, Felix MR, Gleason K, Hinrichs K. Transvaginal aspiration, oocyte maturation and production of blastocysts and a pregnancy via ICSI in an endangered breed: Baudet du Poitou donkey. Theriogenology 2024; 224:34-40. [PMID: 38723472 DOI: 10.1016/j.theriogenology.2024.04.021] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2023] [Revised: 04/03/2024] [Accepted: 04/29/2024] [Indexed: 06/01/2024]
Abstract
Two Poitou donkey jennies were presented for clinical oocyte recovery and embryo production via intracytoplasmic sperm injection (ICSI). Both jennies underwent transvaginal ultrasound-guided follicle aspiration on two occasions. Recovered oocytes were held overnight then placed into maturation culture, using standard methods for mare oocytes. On the first replicate for both jennies, the oocytes were divided into two groups; one group was denuded and examined at 30 h culture (standard culture duration for mare oocytes) and the second was denuded and examined at 36 h culture. No oocytes with polar bodies were observed at either time. The oocytes were maintained in maturation culture until 46 h, at which time oocytes with polar bodies were observed. Semen was then prepared; oocytes underwent ICSI approximately 48 h after being placed into maturation culture. On the second replicate for both jennies, oocytes were cultured for maturation for 42 h, then denuded and subjected to ICSI at 46 h. Sperm preparation, injection and embryo culture were performed as for mare oocytes. Blastocyst rates per injected oocyte were 8/19 (42 %) overall, being 4/12 and 4/7 for the first and second TVAs, respectively. Blastocysts were vitrified. Three blastocysts were warmed and transferred to Poitou donkey jenny recipients. One embryonic vesicle was visualized on ultrasonography on embryo Day 12, which increased in size on Day 13 but was not present when examined on Day 14. These results demonstrate that oocyte recovery and ICSI are efficient for production of Poitou donkey blastocysts. To the best of our knowledge, this is the first report of production of blastocysts via ICSI in the Poitou donkey, and the first report of transfer of ICSI-produced embryos in the donkey. Further work is needed on factors affecting pregnancy after embryo transfer in the donkey.
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Affiliation(s)
- Tamara Dobbie
- Department of Clinical Studies - New Bolton Center, University of Pennsylvania School of Veterinary Medicine, 382 W. Street Rd., Kennett Square, PA, 19348, USA
| | - Matheus R Felix
- Department of Clinical Studies - New Bolton Center, University of Pennsylvania School of Veterinary Medicine, 382 W. Street Rd., Kennett Square, PA, 19348, USA
| | - Kim Gleason
- Department of Clinical Studies - New Bolton Center, University of Pennsylvania School of Veterinary Medicine, 382 W. Street Rd., Kennett Square, PA, 19348, USA
| | - Katrin Hinrichs
- Department of Clinical Studies - New Bolton Center, University of Pennsylvania School of Veterinary Medicine, 382 W. Street Rd., Kennett Square, PA, 19348, USA.
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Hormonal Management for the Induction of Luteolysis and Ovulation in Andalusian Jennies: Effect on Reproductive Performance, Embryo Quality and Recovery Rate. Animals (Basel) 2022; 12:ani12020143. [PMID: 35049767 PMCID: PMC8772578 DOI: 10.3390/ani12020143] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2021] [Revised: 01/04/2022] [Accepted: 01/06/2022] [Indexed: 11/17/2022] Open
Abstract
Two prostanglandins (luprostiol, LUP, and dinoprost, DIN) and two ovulation-inducing agents (human Chorionic Gonadotropin, hCG, and deslorelin, DES) were evaluated for luteolysis and estrus induction, and for ovulation induction, respectively, in embryo donor jennies. Twenty-six fertile Andalusian jennies were used. In Experiment 1, jennies (n = 112 cycles) were randomly treated with either LUP or DIN after embryo flushing. In Experiment 2, donors (n = 84 cycles) were randomly treated with either hCG or DES to induce ovulation. No differences were found between prostaglandins for all variables studied (prostaglandin–ovulation interval (POI), interovulatory interval (IOI), embryo recovery rate (ERR), positive flushing rate (PFR) and embryo grade (EG)). The ovulation rate was similar for hCG and DES (60.9% vs. 78.7%). However, the interval to ovulation (ITO) was affected (62.61 ± 7.20 vs. 48.79 ± 2.69 h). None of the other variables studied (ERR, PFR and EG) were affected (p > 0.05), except for embryo quality (p = 0.009). In short, both prostaglandins evaluated are adequate to induce luteolysis and estrus. Both ovulation-inducing agents hastened ovulation, but DES seems to be more effective than hCG. Follicular diameter affected the interval from treatment to ovulation, and high uterine edema was related to low embryo quality.
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Rodrigues LT, Segabinazzi LG, Oliveira SN, Frasson M, Papa FO. Two successful embryo transfers of mini-donkey embryos in Brazilian Northeastern jennies using an alternative method: Case report. Reprod Domest Anim 2021; 56:1470-1474. [PMID: 34375469 DOI: 10.1111/rda.14000] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2021] [Accepted: 08/07/2021] [Indexed: 11/29/2022]
Abstract
Pregnancy rates after embryo transfer (ET) are disappointing in donkey species. This study aims to report two successful ET of mini-donkey embryos using Brazilian Northeastern jennies as recipients. Eighteen embryo flushes were performed 9 days post-ovulation in two non-pregnant mini-donkeys jennies (11 and 7 cycles per jenny). Eleven embryos (61%, 11/18) were collected and transferred to Brazilian Northeastern jennies 4-6 days post-ovulation by conventional (n = 6) or an alternative (n = 5) technique. The alternative method consisted of inserting a Polansky equine vaginal speculum smeared with lubricant in the vagina of the recipient jenny. The arms of the speculum were extended to allow the visualization of the cervix. Then, using an adapted crafted, elongated, toothed tissue grasping forceps, the external cervical os was held, and the cervix was gently pulled backward, aiming to straight the cervical canal. The ET gun was inserted through the vagina and cervix by visual inspection, and the embryo was released into the uterine lumen. All embryos collected were Grade 1 and classified as Expanded Blastocysts. No jennies become pregnant after conventional ET (0/6), whereas two recipient jennies (40%, 2/5) become pregnant and delivered offspring in the following year after ET using the alternative technique. In conclusion, Brazilian Northeastern jennies can be used as embryo recipients using the alternative method proposed in the present study. However, further investigations are needed to improve the knowledge and results of ET in donkey species.
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Affiliation(s)
- Lucas T Rodrigues
- Department of Veterinary Surgery and Animal Reproduction, School of Veterinary Medicine and Animal Science, São Paulo State University, UNESP, Botucatu, Brazil
| | - Lorenzo Gtm Segabinazzi
- Department of Veterinary Surgery and Animal Reproduction, School of Veterinary Medicine and Animal Science, São Paulo State University, UNESP, Botucatu, Brazil.,Ross University School of Veterinary Medicine, Basseterre, Saint Kitts and Nevis
| | - Sidnei N Oliveira
- Department of Veterinary Surgery and Animal Reproduction, School of Veterinary Medicine and Animal Science, São Paulo State University, UNESP, Botucatu, Brazil
| | - Mariana Frasson
- Department of Veterinary Surgery and Animal Reproduction, School of Veterinary Medicine and Animal Science, São Paulo State University, UNESP, Botucatu, Brazil
| | - Frederico O Papa
- Department of Veterinary Surgery and Animal Reproduction, School of Veterinary Medicine and Animal Science, São Paulo State University, UNESP, Botucatu, Brazil
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Dorado J, Bottrel M, Ortiz I, Díaz-Jiménez M, Pereira B, Consuegra C, Carrasco JJ, Gómez-Arrones V, Domingo A, Hidalgo M. Factors Affecting Embryo Recovery Rate, Quality, and Diameter in Andalusian Donkey Jennies. Animals (Basel) 2020; 10:ani10111967. [PMID: 33114673 PMCID: PMC7693601 DOI: 10.3390/ani10111967] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2020] [Revised: 10/22/2020] [Accepted: 10/25/2020] [Indexed: 11/16/2022] Open
Abstract
Simple Summary Embryo transfer has been successfully used for the conservation of equine endangered species, but a number of factors may affect the outcome of these techniques in mares. However, only a few studies have evaluated these factors in donkeys. The present study was conducted to determine which factors affect the recovery rate, morphological quality, and diameter in embryos from Andalusian donkey jennies. According to our results, the factors affecting embryo recovery rate were donor jenny, donor age, successive cycle within donor, number of flushings, and jack. Day of flushing and number of flushings had an effect on embryo diameter, whereas donor jenny and day of flushing had an effect on embryo quality. The knowledge of these factors is crucial to achieve a higher efficiency of embryo transfer in endangered donkey breeds. Abstract Embryo transfer and the vitrification of embryos could be used for the conservation and recovery of endangered donkey breeds. It is important to develop techniques that optimize recovery rates and the cryotolerance of donkey embryos. This study evaluates factors affecting the recovery rate, quality, and diameter of embryos obtained from donor jennies as a starting point for the use of vitrification and embryo transfer in the conservation of the Andalusian donkey. A total of 100 embryos were recovered out of 124 estrous cycles (80.6%). The donor jenny affected the rates of positive flushings (PFR; p = 0.040) and embryo recovery (ERR; p < 0.05) as well as embryo quality (p = 0.004). ERR was also affected by the number of flushings (p < 0.001), donor age (p < 0.05), successive cycle within donor (p < 0.001), and jacks (p < 0.05). Number of flushings (p < 0.001) and jack (p < 0.05) had a significant effect on PFR, whereas the day of flushing influenced the developmental stage (p < 0.001), embryo quality (p < 0.05), and diameter of embryos (p < 0.001). The number of flushings significantly influenced the diameter (p = 0.038) and embryo developmental stage (p = 0.001), whereas the developmental stage was statistically different between herds (p = 0.020). The factors influencing the success of this assisted reproductive technique were donor jenny, donor age, successive cycle within donor, day of flushing, number of flushings, and jack. The identification of these key points is crucial to achieve a higher efficiency of embryo transfer and vitrification processes, before considering their application in the conservation of endangered donkey breeds.
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Affiliation(s)
- J. Dorado
- Veterinary Reproduction Group, Department of Medicine and Animal Surgery, Faculty of Veterinary Medicine, University of Cordoba, 14071 Cordoba, Spain; (M.B.); (I.O.); (M.D.-J.); (B.P.); (C.C.); (M.H.)
- Correspondence: ; Tel.: +34-957-212-136
| | - M. Bottrel
- Veterinary Reproduction Group, Department of Medicine and Animal Surgery, Faculty of Veterinary Medicine, University of Cordoba, 14071 Cordoba, Spain; (M.B.); (I.O.); (M.D.-J.); (B.P.); (C.C.); (M.H.)
| | - I. Ortiz
- Veterinary Reproduction Group, Department of Medicine and Animal Surgery, Faculty of Veterinary Medicine, University of Cordoba, 14071 Cordoba, Spain; (M.B.); (I.O.); (M.D.-J.); (B.P.); (C.C.); (M.H.)
| | - M. Díaz-Jiménez
- Veterinary Reproduction Group, Department of Medicine and Animal Surgery, Faculty of Veterinary Medicine, University of Cordoba, 14071 Cordoba, Spain; (M.B.); (I.O.); (M.D.-J.); (B.P.); (C.C.); (M.H.)
| | - B. Pereira
- Veterinary Reproduction Group, Department of Medicine and Animal Surgery, Faculty of Veterinary Medicine, University of Cordoba, 14071 Cordoba, Spain; (M.B.); (I.O.); (M.D.-J.); (B.P.); (C.C.); (M.H.)
| | - C. Consuegra
- Veterinary Reproduction Group, Department of Medicine and Animal Surgery, Faculty of Veterinary Medicine, University of Cordoba, 14071 Cordoba, Spain; (M.B.); (I.O.); (M.D.-J.); (B.P.); (C.C.); (M.H.)
| | - J. J. Carrasco
- Equine Reproduction Center, Centro de Selección y Reproducción Animal, (CENSYRA-Extremadura Government), 06007 Badajoz, Spain; (J.J.C.); (V.G.-A.); (A.D.)
| | - V. Gómez-Arrones
- Equine Reproduction Center, Centro de Selección y Reproducción Animal, (CENSYRA-Extremadura Government), 06007 Badajoz, Spain; (J.J.C.); (V.G.-A.); (A.D.)
| | - A. Domingo
- Equine Reproduction Center, Centro de Selección y Reproducción Animal, (CENSYRA-Extremadura Government), 06007 Badajoz, Spain; (J.J.C.); (V.G.-A.); (A.D.)
| | - M. Hidalgo
- Veterinary Reproduction Group, Department of Medicine and Animal Surgery, Faculty of Veterinary Medicine, University of Cordoba, 14071 Cordoba, Spain; (M.B.); (I.O.); (M.D.-J.); (B.P.); (C.C.); (M.H.)
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Abstract
In industrialized countries, the donkey population had a dramatic decrease during the last century and this has brought almost all European donkey breeds to risk. Embryo technologies have already been employed as a tool for the conservation of endangered equid species (e.g. Equus Przewalskii). Today it is possible to obtain pregnancies after the transfer of donkey embryos in synchronized recipients, even though embryo transfer is not widely used as a reproductive technique in this species. So far, very few foals are born after transfer of cryopreserved embryos. To date, no pregnancies have been reported from in vitro fertilization studies. The use of the donkey as a dairy animal, as well as the increased importance of the conservation of endangered donkey breeds, could be the engine for the development and spread of embryo technologies in this species. However, funding from national and international research agencies in this field is still scarce, especially in Europe.
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Fanelli D, Panzani D, Rota A, Tesi M, Camillo F, Bollwein H, Herrera C. Cryopreservation of donkey embryos: Comparison of embryo survival rate after in vitro culture between conventional freezing and vitrification. Theriogenology 2020; 154:11-16. [PMID: 32470704 DOI: 10.1016/j.theriogenology.2020.05.020] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2020] [Revised: 05/11/2020] [Accepted: 05/12/2020] [Indexed: 10/24/2022]
Abstract
Embryo cryopreservation ensures that genetic biodiversity is preserved over time. This study evaluates the survival of donkey embryos subjected to slow freezing and vitrification after thawing and in vitro culture. Seven-day-old in vivo produced donkey embryos were subjected to slow freezing (SF, N = 14) or vitrification (VIT, N = 22). After one year of cryopreservation, embryos were warmed, washed and placed in incubation for in vitro culture (IVC). In order to assess the embryo viability, the quality grade and developmental stage were recorded after thawing and after 24 and 48 h of IVC. Eleven embryos (SF = 4 and VIT = 7) were incubated under a time-lapse camera, for up to 68 h, in order to determine the area and growth. The survival rate was not influenced by the procedure but by the developmental stage: after 48 h of IVC blastocyst survival rate (1/8, 12.5%) was significantly lower compared to both morulas (8/12, 66.7%) and early blastocysts (11/16, 68.7%) (P < 0.05). Embryo diameter class at recovery did not significantly influence the survival rate. In terms of the embryos that were judged to be alive after 48 h of IVC, quality grade 1 was observed in 7/8 (88%) and 4/12 (33%) of the SF and VIT embryos, respectively (P < 0.05). After time-lapse analysis, the IVC embryo area as well as growth percentage were statistically higher in the SF than the VIT embryos (P < 0.05). In conclusion, no difference in survival rates was found between the two cryopreservation procedures, although embryo quality was more negatively affected by vitrification.
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Affiliation(s)
- D Fanelli
- Veterinary Sciences Department, Pisa University, San Piero a Grado, Via Livornese, 56124, Pisa, Italy.
| | - D Panzani
- Veterinary Sciences Department, Pisa University, San Piero a Grado, Via Livornese, 56124, Pisa, Italy
| | - A Rota
- Veterinary Sciences Department, Pisa University, San Piero a Grado, Via Livornese, 56124, Pisa, Italy
| | - M Tesi
- Veterinary Sciences Department, Pisa University, San Piero a Grado, Via Livornese, 56124, Pisa, Italy
| | - F Camillo
- Veterinary Sciences Department, Pisa University, San Piero a Grado, Via Livornese, 56124, Pisa, Italy
| | - H Bollwein
- Clinic of Reproductive Medicine, Department for Farm Animals, University of Zurich, Zurich, 8057, Switzerland
| | - C Herrera
- Clinic of Reproductive Medicine, Department for Farm Animals, University of Zurich, Zurich, 8057, Switzerland
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Bottrel M, Hidalgo M, Mogas T, Pereira B, Ortiz I, Díaz-Jiménez M, Consuegra C, Morató R, Dorado J. One-step warming does not affect the in vitro viability and cryosurvival of cryotop-vitrified donkey embryos. Theriogenology 2020; 152:47-52. [PMID: 32361488 DOI: 10.1016/j.theriogenology.2020.04.026] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2020] [Revised: 04/11/2020] [Accepted: 04/18/2020] [Indexed: 11/15/2022]
Abstract
The objective of this study was to compare the effects of two warming protocols (three-step vs. one-step dilution) on embryo quality, post-warming embryo survival and embryo cell viability of donkey embryos vitrified by the Cryotop method. Twenty, Day 7-8, grade 1-2 donkey embryos were measured, morphologically evaluated and vitrified using the Cryotop technique. Embryos were then randomly warmed using two different warming procedures: (i) W3 (three-step dilution; n = 11): embryos were warmed in 1 M, 0.5 M and 0 M sucrose, and (ii) W1/0.5 (one-step dilution; n = 9): embryos were warmed directly in 0.5 M sucrose. After 3 and 24 h of warming, the embryos were measured and evaluated for their morphology, developmental stage and viability (Propidium Iodide-Hoechst 33,342 dyes). Although both treatments decreased embryo quality after warming (P < 0.05), no significant differences (P > 0.05) were observed between protocols in terms of post-warming embryo quality, diameter and embryo survival. Greater percentages of dead cells (P < 0.001) were observed when embryos were warmed directly in 0.5 M sucrose (one-step dilution) when compared to the three-step protocol. The percentage of ruptured embryos was 27.3% and 0% in W3 and W1/0.5 protocols (P = 0.0893), respectively. In conclusion, warming Cryotop-vitrified donkey embryos directly in 0.5 M sucrose had no negative effects on embryo quality and post-warming embryo survival. Moreover, one-step protocol may help to prevent rupture when donkey embryos warmed directly in 0.5 M sucrose. These results observed in vitro must be verified by embryo transfer.
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Affiliation(s)
- M Bottrel
- Veterinary Reproduction Group, Department of Animal Medicine and Surgery. Faculty of Veterinary Medicine, University of Cordoba, 14071, Cordoba, Spain
| | - M Hidalgo
- Veterinary Reproduction Group, Department of Animal Medicine and Surgery. Faculty of Veterinary Medicine, University of Cordoba, 14071, Cordoba, Spain
| | - T Mogas
- Department of Animal Medicine and Surgery, Autonomous University of Barcelona, 08193, Cerdanyola Del Vallès, Spain
| | - B Pereira
- Veterinary Reproduction Group, Department of Animal Medicine and Surgery. Faculty of Veterinary Medicine, University of Cordoba, 14071, Cordoba, Spain
| | - I Ortiz
- Veterinary Reproduction Group, Department of Animal Medicine and Surgery. Faculty of Veterinary Medicine, University of Cordoba, 14071, Cordoba, Spain
| | - M Díaz-Jiménez
- Veterinary Reproduction Group, Department of Animal Medicine and Surgery. Faculty of Veterinary Medicine, University of Cordoba, 14071, Cordoba, Spain
| | - C Consuegra
- Veterinary Reproduction Group, Department of Animal Medicine and Surgery. Faculty of Veterinary Medicine, University of Cordoba, 14071, Cordoba, Spain
| | - R Morató
- Department of Animal Medicine and Surgery, Autonomous University of Barcelona, 08193, Cerdanyola Del Vallès, Spain
| | - J Dorado
- Veterinary Reproduction Group, Department of Animal Medicine and Surgery. Faculty of Veterinary Medicine, University of Cordoba, 14071, Cordoba, Spain.
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Bottrel M, Mogas T, Pereira B, Ortiz I, Díaz-Jiménez M, Consuegra C, Hidalgo M, Morató R, Dorado J. The cryoprotective effect of Ficoll 70 on the post-warming survival and quality of Cryotop-vitrified donkey embryos. Theriogenology 2019; 148:180-185. [PMID: 31757484 DOI: 10.1016/j.theriogenology.2019.11.013] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2019] [Revised: 11/10/2019] [Accepted: 11/12/2019] [Indexed: 10/25/2022]
Abstract
Many domestic donkey breeds are at risk of extinction, there is a critical urgency for genome resource banking. In the present study, we examined whether the use of Ficoll 70 added to the vitrification medium containing ethylene glycol (EG), dimethyl sulfoxide (DMSO) and sucrose improves the cryotolerance of donkey in vivo derived embryos. Day 7-8, grade 1-2 donkey embryos were measured and morphologically evaluated and then vitrified-warmed using the Cryotop technique. Before vitrification, embryos were randomly distributed into two groups: (i) VS1 (n = 14): vitrified using 15% EG + 15% DMSO + 0.5 M sucrose; and (ii) VS2 (n = 10): vitrified in the same medium supplemented also with 18% of Ficoll 70. After 24 h of warming, the embryos were measured and evaluated for their morphology, development and viability (Propidium Iodide-Hoechst 33342 dyes). Post-warming survival was numerically higher but not significantly different (P > 0.05) when embryos were vitrified in VS2 (70%) compared to VS1 (57.1%). Embryo rupture was only observed in the VS1 group (21.4%, 3/14). Higher embryo diameter was observed in all groups after 24 h culture (P < 0.05). No significant differences (P > 0.05) were observed among treatments in terms of percentages of cell death. These results demonstrate that the addition of Ficoll 70 to the vitrification medium is not a pre-requisite for successful vitrification of donkey embryos. However, its addition seems to enhance some of the post-warming embryo quality characteristics. Since no statistically significant evidence was found, further studies should be conducted in order to confirm our findings.
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Affiliation(s)
- M Bottrel
- Veterinary Reproduction Group, Department of Animal Medicine and Surgery. Faculty of Veterinary Medicine, University of Cordoba, 14071, Cordoba, Spain
| | - T Mogas
- Department of Animal Medicine and Surgery, Autonomous University of Barcelona, 08193, Cerdanyola del Vallès, Spain
| | - B Pereira
- Veterinary Reproduction Group, Department of Animal Medicine and Surgery. Faculty of Veterinary Medicine, University of Cordoba, 14071, Cordoba, Spain
| | - I Ortiz
- Veterinary Reproduction Group, Department of Animal Medicine and Surgery. Faculty of Veterinary Medicine, University of Cordoba, 14071, Cordoba, Spain
| | - M Díaz-Jiménez
- Veterinary Reproduction Group, Department of Animal Medicine and Surgery. Faculty of Veterinary Medicine, University of Cordoba, 14071, Cordoba, Spain
| | - C Consuegra
- Veterinary Reproduction Group, Department of Animal Medicine and Surgery. Faculty of Veterinary Medicine, University of Cordoba, 14071, Cordoba, Spain
| | - M Hidalgo
- Veterinary Reproduction Group, Department of Animal Medicine and Surgery. Faculty of Veterinary Medicine, University of Cordoba, 14071, Cordoba, Spain
| | - R Morató
- Department of Animal Medicine and Surgery, Autonomous University of Barcelona, 08193, Cerdanyola del Vallès, Spain
| | - J Dorado
- Veterinary Reproduction Group, Department of Animal Medicine and Surgery. Faculty of Veterinary Medicine, University of Cordoba, 14071, Cordoba, Spain.
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Canisso IF, Panzani D, Miró J, Ellerbrock RE. Key Aspects of Donkey and Mule Reproduction. Vet Clin North Am Equine Pract 2019; 35:607-642. [PMID: 31672204 DOI: 10.1016/j.cveq.2019.08.014] [Citation(s) in RCA: 42] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022] Open
Abstract
Donkeys are nonseasonal, polyestrous, territorial, and nonharem breeders. Although there are many similarities between horses and donkeys, there are also reproductive features that differ, from the longer cervix in the jenny to spermatogenic efficiency in the jack. Mules display reproductive cyclic activity but are rarely fertile. Frozen donkey semen has high pregnancy rates in mares, but lower rates in jennies. This article reviews key aspects of donkey and mule reproductive physiology, reproductive medicine, and assisted reproductive techniques that are useful for practitioners offering assisted reproductive techniques, and also for practitioners with the occasional client with a basic reproductive question.
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Affiliation(s)
- Igor Federico Canisso
- Department of Veterinary Clinical Medicine, College of Veterinary Medicine, University of Illinois Urbana-Champaign, Urbana, IL 61802, USA.
| | - Duccio Panzani
- Department of Veterinary Science, University of Pisa, Pisa 56122, Italy
| | - Jordi Miró
- Department of Animal Medicine and Surgery, Faculty of Veterinary Medicine, Autonomous University of Barcelona, 08193 Bellaterra, Barcelona, Spain
| | - Robyn E Ellerbrock
- Department of Large Animal Medicine, College of Veterinary Medicine, University of Georgia, Athens, GA 30602, USA
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Cryopreservation of donkey embryos by the cryotop method: Effect of developmental stage, embryo quality, diameter and age of embryos. Theriogenology 2019; 125:242-248. [DOI: 10.1016/j.theriogenology.2018.11.011] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2018] [Revised: 11/13/2018] [Accepted: 11/15/2018] [Indexed: 11/23/2022]
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Deleuze S, Douet C, Couty I, Moros-Nicolás C, Barrière P, Blard T, Reigner F, Magistrini M, Goudet G. Ovum Pick Up and In Vitro Maturation of Jennies Oocytes Toward the Setting Up of Efficient In Vitro Fertilization and In Vitro Embryos Culture Procedures in Donkey ( Equus asinus ). J Equine Vet Sci 2018. [DOI: 10.1016/j.jevs.2018.03.004] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Panzani D, Rota A, Tesi M, Fanelli D, Camillo F. Update on Donkey Embryo Transfer and Cryopreservation. J Equine Vet Sci 2018. [DOI: 10.1016/j.jevs.2017.11.012] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Pérez-Marín CC, Vizuete G, Vazquez-Martinez R, Galisteo JJ. Comparison of different cryopreservation methods for horse and donkey embryos. Equine Vet J 2017; 50:398-404. [DOI: 10.1111/evj.12777] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2016] [Accepted: 10/27/2017] [Indexed: 11/29/2022]
Affiliation(s)
- C. C. Pérez-Marín
- Department of Animal Medicine and Surgery; Faculty of Veterinary Medicine; University of Cordoba; Cordoba Spain
| | - G. Vizuete
- Department of Animal Medicine and Surgery; Faculty of Veterinary Medicine; University of Cordoba; Cordoba Spain
| | - R. Vazquez-Martinez
- Department of Cellular Biology, Physiology and Immunology; University of Cordoba; Cordoba Spain
| | - J. J. Galisteo
- Centro Militar de Cría Caballar de Ecija, Cría Caballar de las F.A.S.; Ecija, Seville Spain
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16
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Establishment of conditions for ovum pick up and IVM of jennies oocytes toward the setting up of efficient IVF and in vitro embryos culture procedures in donkey (Equus asinus). Theriogenology 2016; 86:528-35. [DOI: 10.1016/j.theriogenology.2016.02.004] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2015] [Revised: 02/01/2016] [Accepted: 02/03/2016] [Indexed: 01/08/2023]
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Contri A, Robbe D, Gloria A, De Amicis I, Veronesi M, Carluccio A. Effect of the season on some aspects of the estrous cycle in Martina Franca donkey. Theriogenology 2014; 81:657-61. [DOI: 10.1016/j.theriogenology.2013.12.010] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2013] [Revised: 12/09/2013] [Accepted: 12/10/2013] [Indexed: 10/25/2022]
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Panzani D, Rota A, Romano C, Pratelli G, Sabatini C, Camillo F. Birth of the first donkey foals after transfer of vitrified embryos. J Equine Vet Sci 2012. [DOI: 10.1016/j.jevs.2012.05.047] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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