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Du Y, Xia Y, Xu J, Liu Z, Liu Z, Zhang M, Xu G, Xing X, Du F. Effects of donor age and reproductive history on developmental potential of ovum pickup oocytes in Japanese Black cattle (Wagyu). Theriogenology 2024; 221:25-30. [PMID: 38537318 DOI: 10.1016/j.theriogenology.2024.03.012] [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: 11/08/2023] [Revised: 03/16/2024] [Accepted: 03/22/2024] [Indexed: 04/09/2024]
Abstract
The objectives of this study were to analyze the (1) effects of donor age and multiparity on development of in vitro fertilization (IVF) embryos after ovum pickup (OPU), (2) effects of repeated and consecutive OPU-IVF procedures on embryo development, and (3) embryo production from OPU-IVF in donors with differing embryo yields after multiple ovulation and embryo transfer technology (MOET) in Japanese Black cattle (Wagyu). Donors were pre-treated with low-dosage follicle-stimulating hormone (FSH; 200 IU total), and oocytes were collected via OPU and fertilized by IVF to generate blastocysts. The number of oocytes collected per OPU session per donor was lower in heifers (2-4 years old, 5.3 oocytes) than in primiparous and pluriparous cows (2-10 years old, 13.6-19.1 oocytes; P < 0.05). Rates of blastocyst development for oocytes from heifers (33.1%) were lower than for those from cows (2-10 years old, 44.1-54.3%; P < 0.05), and average blastocyst yield/OPU/animal was lower in heifers (3.7) than in 5-6 years old cows (10.1; P < 0.05). Donors undergoing five consecutive OPU-IVF sessions after low-dosage FSH showed similar oocyte retrieval (12.2-15.1 oocytes per OPU/animal), blastocyst development rates (35.6-45.0%), and embryo yield/OPU/animal (4.8-5.8; P > 0.05) across sessions. Additionally, embryo yield from OPU-IVF was significantly improved in animals with previous low embryo yield from MOET (5.9 vs. 2.6, respectively, P < 0.05). These results indicate that Wagyu cows with previous births can be more productive as OPU-IVF donors than heifers, and oocytes from donors undergoing to five consecutive OPU-IVF cycles are competent for embryo development without loss of embryo yield/OPU/animal. Moreover, OPU-IVF can be used for embryo production and breeding from all elite Japanese Black cattle, regardless of previous low embryo yield in routine MOET.
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Affiliation(s)
- Yinyan Du
- Jiangsu Key Laboratory for Molecular and Medical Biotechnology, College of Life Sciences, Nanjing Normal University, Nanjing, 210023, PR China
| | - Yuhan Xia
- Jiangsu Key Laboratory for Molecular and Medical Biotechnology, College of Life Sciences, Nanjing Normal University, Nanjing, 210023, PR China
| | - Jiahui Xu
- Jiangsu Key Laboratory for Molecular and Medical Biotechnology, College of Life Sciences, Nanjing Normal University, Nanjing, 210023, PR China
| | - Zhihui Liu
- Jiangsu Key Laboratory for Molecular and Medical Biotechnology, College of Life Sciences, Nanjing Normal University, Nanjing, 210023, PR China
| | - Zhentian Liu
- Qingdao Longmingniu Embryo Biotechnologies Co. LTD, Qingdao, Shandong, 266400, PR China
| | - Meijie Zhang
- Qingdao Longmingniu Embryo Biotechnologies Co. LTD, Qingdao, Shandong, 266400, PR China
| | - Guangyong Xu
- Qingdao Longmingniu Embryo Biotechnologies Co. LTD, Qingdao, Shandong, 266400, PR China
| | - Xuesong Xing
- Qingdao Longmingniu Embryo Biotechnologies Co. LTD, Qingdao, Shandong, 266400, PR China.
| | - Fuliang Du
- Jiangsu Key Laboratory for Molecular and Medical Biotechnology, College of Life Sciences, Nanjing Normal University, Nanjing, 210023, PR China.
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2
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Maddahi A, Saberivand A, Hamali H, Jafarpour F, Saberivand M. Exploring the impact of heat stress on oocyte maturation and embryo development in dairy cattle using a culture medium supplemented with vitamins E, C, and coenzyme Q10. J Therm Biol 2024; 119:103759. [PMID: 38035528 DOI: 10.1016/j.jtherbio.2023.103759] [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: 09/05/2023] [Revised: 11/03/2023] [Accepted: 11/04/2023] [Indexed: 12/02/2023]
Abstract
Heat stress is a significant factor affecting the fertility of dairy cattle due to the generation of free radicals. In assisted reproductive techniques, the inclusion of protective antioxidants becomes crucial to mitigate potential cellular damage. This study aimed to explore the impact of supplementing vitamins E, C, and coenzyme Q10 into the oocyte culture medium, with the goal of ameliorating the adverse effects of heat stress on oocyte maturation and embryo development in dairy cattle. A group of fifty Holstein dairy cows were synchronized, and their oocytes were harvested using the ovum pick-up method. High-quality oocytes were subjected to in vitro maturation (IVM) and in vitro fertilization (IVF) procedures, utilizing a culture medium containing, no supplements (Group 1), 100 μM of vitamins E (Group 2) and C (Group 3), along with 50 μM of coenzyme Q10 (Group 4). The ensuing zygotes were cultured, and the ensuing embryos were evaluated for blastocyst formation by the seventh day. An analysis of the blastocysts' inner cell mass (ICM) and trophectoderm (TE) cells was also conducted. The findings revealed that the group receiving supplementation of vitamin E and coenzyme Q10 exhibited significantly higher maturation and cleavage rates in comparison to both the control and the vitamin C groups. Furthermore, the count of ICM, TE, and blastocyst cells was notably elevated in the vitamin E supplemented group when compared to the control group. In summary, the effectiveness of vitamin E in enhancing IVM, IVF, and embryo development under conditions of heat stress surpassed that of vitamin C and coenzyme Q10.
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Affiliation(s)
- Aref Maddahi
- Theriogenology Section, Department of Clinical Science, Faculty of Veterinary Medicine, University of Tabriz, Tabriz, Iran.
| | - Adel Saberivand
- Theriogenology Section, Department of Clinical Science, Faculty of Veterinary Medicine, University of Tabriz, Tabriz, Iran.
| | - Hossein Hamali
- Theriogenology Section, Department of Clinical Science, Faculty of Veterinary Medicine, University of Tabriz, Tabriz, Iran.
| | - Farnoosh Jafarpour
- Department of Embryology, Royan Biotechnology Research Institute, Isfahan, Iran.
| | - Maryam Saberivand
- Connective Tissue Diseases Research Center, Tabriz University of Medical Science, Tabriz, Iran.
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Elgendy O, Kitahara G, Taniguchi S, Osawa T. 5-Aminolevulinic acid combined with sodium ferrous citrate mitigates effects of heat stress on bovine oocyte developmental competence. J Reprod Dev 2022; 68:271-277. [PMID: 35705297 PMCID: PMC9334322 DOI: 10.1262/jrd.2021-145] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/02/2022] Open
Abstract
High summer temperatures have deleterious effects on oocyte developmental competence. The antioxidant and autophagy-related properties of 5-aminolevulinic acid (5-ALA) gives the compound a
broad range of biological activities. This study aimed to evaluate the effects of: 1) a high temperature-humidity index (THI) on the developmental competence of bovine oocytes, and 2) 5-ALA
administration in combination with sodium ferrous citrate (SFC) during in vitro maturation (IVM) on bovine oocyte developmental competence evaluated at high THI. Bovine
ovaries were collected from a local slaughterhouse at moderate environmental temperature (MT; THI of 56.2) and high environmental temperature (HT; THI of 76.7) periods; cumulus-oocyte
complexes (COCs) were aspirated from medium-sized follicles, matured in vitro for 22 h, fertilized, and cultured for 10 days. For COCs collected during the HT period, 0
(control), 0.01, 0.1, 0.5, or 1 µM 5-ALA was added to the maturation medium in combination with SFC at a molar ratio of 1:0.125. The results showed that HT adversely affected blastocyst and
hatching rates compared with MT. Adding 5-ALA/SFC (1 µM/0.125 µM) to the maturation medium of oocytes collected during the HT period improved cumulus cell expansion and blastocyst rates
compared with the no-addition control. In conclusion, this study showed that high THI can disrupt bovine oocyte developmental competence. Adding 5-ALA to SFC ameliorates this negative effect
of heat stress and improves subsequent embryo development.
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Affiliation(s)
- Omnia Elgendy
- Graduate School of Medicine and Veterinary Medicine, University of Miyazaki, Miyazaki 889-2192, Japan.,Department of Veterinary Sciences, Faculty of Agriculture, University of Miyazaki, Miyazaki 889-2192, Japan.,Department of Theriogenology, Faculty of Veterinary Medicine, Benha University, Qalyobia 3736, Egypt
| | - Go Kitahara
- Graduate School of Medicine and Veterinary Medicine, University of Miyazaki, Miyazaki 889-2192, Japan.,Department of Veterinary Sciences, Faculty of Agriculture, University of Miyazaki, Miyazaki 889-2192, Japan
| | - Shin Taniguchi
- Graduate School of Biosphere Science, Hiroshima University, Higashi-Hiroshima 739-8528, Japan.,One Health Business Department, Neopharma Japan Co., Ltd., Tokyo 102-0071, Japan
| | - Takeshi Osawa
- Graduate School of Medicine and Veterinary Medicine, University of Miyazaki, Miyazaki 889-2192, Japan.,Department of Veterinary Sciences, Faculty of Agriculture, University of Miyazaki, Miyazaki 889-2192, Japan
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Vázquez-Mosquera JM, Fernández-Novo A, Bonet-Bo M, Pérez-Villalobos N, Pesántez-Pacheco JL, Pérez-Solana ML, de Mercado E, Gardón JC, Villagrá A, Sebastián F, Pérez-Garnelo SS, Martínez D, Astiz S. MOET Efficiency in a Spanish Herd of Japanese Black Heifers and Analysis of Environmental and Metabolic Determinants. BIOLOGY 2022; 11:225. [PMID: 35205092 PMCID: PMC8869101 DOI: 10.3390/biology11020225] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/24/2021] [Revised: 01/25/2022] [Accepted: 01/28/2022] [Indexed: 06/14/2023]
Abstract
Multiple ovulation and embryo transfer (MOET) systems have been intensively implemented in Japanese Black cattle in Japan and to create Japanese Black herds out of these areas. Environmental conditions influence MOET efficiency. Thus, we describe results of 137 in vivo, non-surgical embryo flushings performed between 2016-2020, in a full-blood Japanese Black herd kept in Spain and the possible effects of heat, year, bull, donor genetic value, and metabolic condition. Additionally, 687 embryo transfers were studied for conception rate (CR) and recipient related factors. A total of 71.3% of viable embryos (724/1015) were obtained (5.3 ± 4.34/flushing). Donor metabolites did not affect embryo production (p > 0.1), although metabolite differences were observed over the years, and by flushing order, probably related to the donor age. CR was not affected by embryo type (fresh vs. frozen), recipient breed, and whether suckling or not suckling (p > 0.1). CR decreased significantly with heat (44.3 vs. 49.2%; (p = 0.042)) and numerically increased with recipient parity and ET-number. Pregnant recipients showed significantly higher levels of cholesterol-related metabolites, glucose, and urea (p < 0.05). Therefore, adequate MOET efficiency can be achieved under these conditions, and heat stress should be strongly avoided during Japanese Black embryo transfers. Moreover, recipients' metabolites are important to achieve pregnancy, being probably related to better nutrient availability during pregnancy.
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Affiliation(s)
- Juan M. Vázquez-Mosquera
- Medicine and Surgery Department, Veterinary Faculty, Complutense University of Madrid, Puerta de Hierro Avenue s/n, 28040 Madrid, Spain;
| | - Aitor Fernández-Novo
- Department of Veterinary Medicine, School of Biomedical and Health Sciences, Universidad Europea de Madrid, C/Tajo s/n, 28670 Villaviciosa de Odón, Spain; (A.F.-N.); (N.P.-V.)
| | - Martin Bonet-Bo
- Embriovet SL, Polígono Industrial de Piadela II-8, A Coruña, 15300 Betanzos, Spain; (M.B.-B.); (D.M.)
| | - Natividad Pérez-Villalobos
- Department of Veterinary Medicine, School of Biomedical and Health Sciences, Universidad Europea de Madrid, C/Tajo s/n, 28670 Villaviciosa de Odón, Spain; (A.F.-N.); (N.P.-V.)
| | - Jose L. Pesántez-Pacheco
- Faculty of Agricultural Sciences, School of Veterinary Medicine and Zootechnics, University of Cuenca, Av. Doce de Octubre, Cuenca 010220, Ecuador;
| | - Maria Luz Pérez-Solana
- Animal Reproduction Department, National Institute of Agronomic Research (INIA-CSIC), Puerta de Hierro Avenue s/n, 28040 Madrid, Spain; (M.L.P.-S.); (E.d.M.); (S.S.P.-G.)
| | - Eduardo de Mercado
- Animal Reproduction Department, National Institute of Agronomic Research (INIA-CSIC), Puerta de Hierro Avenue s/n, 28040 Madrid, Spain; (M.L.P.-S.); (E.d.M.); (S.S.P.-G.)
| | - Juan Carlos Gardón
- Department of Animal Medicine and Surgery, Veterinary and Experimental Sciences School, Catholic University of Valencia-San Vicente Mártir, Guillem de Castro, 94, 46001 Valencia, Spain;
| | - Arantxa Villagrá
- Institut Valencià d’Investigacions Agràries (IVIA), CV-315, Km, 10700 Valencia, Spain;
| | | | - Sonia Salomé Pérez-Garnelo
- Animal Reproduction Department, National Institute of Agronomic Research (INIA-CSIC), Puerta de Hierro Avenue s/n, 28040 Madrid, Spain; (M.L.P.-S.); (E.d.M.); (S.S.P.-G.)
| | - Daniel Martínez
- Embriovet SL, Polígono Industrial de Piadela II-8, A Coruña, 15300 Betanzos, Spain; (M.B.-B.); (D.M.)
| | - Susana Astiz
- Animal Reproduction Department, National Institute of Agronomic Research (INIA-CSIC), Puerta de Hierro Avenue s/n, 28040 Madrid, Spain; (M.L.P.-S.); (E.d.M.); (S.S.P.-G.)
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5
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SAKATANI M. «The role of reproductive biology in SDGs» Global warming and cattle reproduction: Will increase in cattle numbers progress to global warming? J Reprod Dev 2022; 68:90-95. [PMID: 35095022 PMCID: PMC8979800 DOI: 10.1262/jrd.2021-149] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
The livestock industry produces a large amount of greenhouse gases (GHG) that cause global warming. A high percentage of GHG emissions are derived from cattle and has been suggested to be a
factor in global warming. With the global increase in the consumption of livestock products, the number of farm animals has increased. In addition, the reduction in productivity and
reproductive capacity of cattle has resulted in accelerated GHG emissions. In a high-temperature environment, the pregnancy rate decreases, leading to an increase in animals that do not
contribute to production. Consequently, GHG emission per unit product increases, thereby accelerating global warming. To reduce this environmental impact, it is important to improve the
breeding efficiency of cattle by the use of reproductive technology and, thus, reduce the number of non-productive animals. Thus, reproductive biology plays a major role in mitigating global
warming related to the livestock industry.
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Affiliation(s)
- Miki SAKATANI
- Institute of Livestock and Grassland Science, National Agriculture and Food Research Organization, Tochigi 329-2793, Japan
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Fernandez-Novo A, Pérez-Garnelo SS, Villagrá A, Pérez-Villalobos N, Astiz S. The Effect of Stress on Reproduction and Reproductive Technologies in Beef Cattle-A Review. Animals (Basel) 2020; 10:E2096. [PMID: 33187308 PMCID: PMC7697448 DOI: 10.3390/ani10112096] [Citation(s) in RCA: 34] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2020] [Revised: 11/07/2020] [Accepted: 11/09/2020] [Indexed: 02/05/2023] Open
Abstract
Researchers have contributed by increasing our understanding of the factors affecting reproduction in beef, mainly physical health and nutrition aspects, which have been main concerns during decades. Animal welfare is of outmost relevance in all animal production systems and it is strongly associated to stress. Stress responses involve endocrine, paracrine and neural systems and the consequences of this stress on the reproductive efficiency of specifically, beef cattle and bulls, need to be highlighted. We, therefore, describe the fundamentals of stress and its quantification, focusing in beef herds, reviewing the highly valuable pieces of research, already implemented in this field. We examine major factors (stressors) contributing to stress in beef cattle and their effects on the animals, their reproductive performance and the success of reproductive biotechnologies. We include terms such as acclimatization, acclimation or temperament, very relevant in beef systems. We examine specifically the management stress due to handling, social environment and hierarchy or weaning effects; nutritional stress; and thermal stress (not only heat stress) and also review the influence of these stressors on reproductive performance and effectiveness of reproductive biotechnologies in beef herds. A final message on the attention that should be devoted to these factors is highlighted.
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Affiliation(s)
- Aitor Fernandez-Novo
- Bovitecnia, Veterinary Consulting, C/Arévalo 5, Colmenar Viejo, 28770 Madrid, Spain;
| | - Sonia S. Pérez-Garnelo
- Animal Reproduction Department, Instituto Nacional de Investigación y Tecnología Agraria y Alimentaria (INIA), Avda, Puerta de Hierro s/n, 28040 Madrid, Spain;
| | - Arantxa Villagrá
- Centro de Tecnología Animal—Instituto Valenciano de Investigaciones Agrarias (CITA-IVIA), Polígono La Esperanza 100, 12400 Segorbe, Spain;
| | - Natividad Pérez-Villalobos
- Facultad de Ciencias Biomédicas, Universidad Europea de Madrid, C/Tajo s/n, Villaviciosa de Odón, 28670 Madrid, Spain;
| | - Susana Astiz
- Animal Reproduction Department, Instituto Nacional de Investigación y Tecnología Agraria y Alimentaria (INIA), Avda, Puerta de Hierro s/n, 28040 Madrid, Spain;
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7
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Fushimi Y, Monniaux D, Takagi M. Efficacy of a single measurement of plasma anti-Müllerian hormone concentration for ovum pick-up donor selection of Japanese Black heifers in herd breeding programs. J Reprod Dev 2019; 65:369-374. [PMID: 30930424 PMCID: PMC6708858 DOI: 10.1262/jrd.2019-003] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2019] [Accepted: 03/18/2019] [Indexed: 02/05/2023] Open
Abstract
In this study, we evaluated the efficiency of a single measurement of plasma anti-Müllerian hormone (AMH) concentration in heifers in determining the number of oocytes recoverable by ovum pick-up (OPU), and compared AMH concentrations among sister heifers from the same parents. For this, blood samples from 50 embryo-transfer-derived female Japanese Black (JB) heifers (mean: 8.7 age in months) were collected and plasma AMH concentration was measured. At 13-15 months of age, both the number of follicles (2-9 mm) and the number of collected oocytes after OPU were counted and compared. Results indicated that the heifers with the highest AMH concentration had the highest number of follicles in their ovaries and gave the highest number of collected oocytes with OPU, thereby indicating that a single measurement of plasma AMH concentration is informative for the selection of OPU-donor heifers in herd breeding programs. The practice of performing a single AMH measurement may accelerate the intensive breeding of JB herds.
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Affiliation(s)
| | - Danielle Monniaux
- Physiologie de la Reproduction, Centre INRA Val de Loire, 37380 Nouzilly, France
| | - Mitsuhiro Takagi
- Joint Faculty of Veterinary Medicine, Yamaguchi University, Yamaguchi 753-8515, Japan
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8
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Low developmental competence and high tolerance to thermal stress of ovine oocytes in the warm compared with the cold season. Trop Anim Health Prod 2019; 51:1611-1618. [PMID: 30840214 DOI: 10.1007/s11250-019-01854-w] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2018] [Accepted: 02/20/2019] [Indexed: 10/27/2022]
Abstract
Heat stress can potentially affect most aspects of reproduction in mammals. To our knowledge, no studies have ever been conducted for evaluating the influences of hot season on the developmental competence of ewe oocytes. In the present study, for the first time, we evaluated the effects of season (winter or summer), in vitro thermal stress, and their interaction on the ewe oocytes harvested from slaughterhouse ovaries. Cumulus-oocyte complexes (COCs) were either incubated at 39 °C for the entire length of IVM period or first incubated at 41 °C for 12 h and then at 39 °C. Evaluated endpoints included the ratios of total aspirated COCs/ovary and good-quality COCs/ovary, the apoptosis (Annexin V staining) and nuclear maturation of oocytes after 24-h IVM, and the developmental competence of oocytes after IVF. Our results showed that the number of aspirated oocytes per ovary was similar in both seasons, but the winter ovaries yielded significantly more oocytes with acceptable morphology in winter than in summer (2.1 ± 0.14 vs. 1.5 ± 0.09, P < 0.05). There was a significant interaction between season and thermal stress on the apoptosis, some nuclear maturation parameters, and blastocyst development of oocytes (P < 0.05). Although the winter oocytes were more developmentally competent than the summer oocytes, the winter oocytes were more sensitive to the thermal stress than summer oocytes. In conclusion, the developmental competence of ovine oocytes was lower in summer than in winter. However, it seemed that summer oocytes were more resistant to the in vitro thermal stress during IVM period compared with winter oocytes.
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Egashira J, Ihara Y, Khatun H, Wada Y, Konno T, Tatemoto H, Yamanaka KI. Efficient in vitro embryo production using in vivo-matured oocytes from superstimulated Japanese Black cows. J Reprod Dev 2019; 65:183-190. [PMID: 30745496 PMCID: PMC6473104 DOI: 10.1262/jrd.2018-155] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
We examined whether the use of in vivo-matured oocytes, collected by ovum pick-up (OPU) from superstimulated Japanese Black cows, can improve the productivity and quality of in vitro produced embryos. The cows were superstimulated by treatment with progesterone, GnRH, FSH and prostaglandin F2α according to a standardized protocol. The resulting in vivo-matured oocytes were collected by OPU and used subsequently for the other experiments. The immature oocytes from cows in the non-stimulated group were collected by OPU and then subjected to maturation in vitro. We found that the rate of normally distributed cortical granules of the matured oocyte cytoplasm in the superstimulated group was significantly higher than that in the non-stimulated group. The normal cleavage rate (i.e., production of embryos with two equal blastomeres without fragmentation) and freezable blastocyst rate were significantly higher in the superstimulated group than in the non-stimulated group. Among the transferable blastocysts, the ratio of embryos from normal cleavage was also significantly higher in the superstimulated group than in the non-stimulated group. For in vivo-matured oocytes, it was observed that the pregnancy rates were significantly higher when normally cleaved embryos were used for transfer. Taken together, these results suggest that high-quality embryos with respect to developmental kinetics can be efficiently produced with the use of in vivo-matured oocytes collected by OPU from superstimulated Japanese Black cows.
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Affiliation(s)
- Junki Egashira
- Faculty of Agriculture, Saga University, Saga 840-8502, Japan.,The United Graduate School of Agricultural Sciences, Kagoshima University, Kagoshima 890-0065, Japan.,Saga Prefectural Livestock Experiment Station, Saga 849-2305, Japan
| | - Yusuke Ihara
- Faculty of Agriculture, Saga University, Saga 840-8502, Japan
| | - Hafiza Khatun
- Faculty of Agriculture, Saga University, Saga 840-8502, Japan.,The United Graduate School of Agricultural Sciences, Kagoshima University, Kagoshima 890-0065, Japan.,Faculty of Animal Husbandry, Bangladesh Agricultural University, Mymensingh, Bangladesh
| | - Yasuhiko Wada
- Faculty of Agriculture, Saga University, Saga 840-8502, Japan.,The United Graduate School of Agricultural Sciences, Kagoshima University, Kagoshima 890-0065, Japan
| | - Toshihiro Konno
- The United Graduate School of Agricultural Sciences, Kagoshima University, Kagoshima 890-0065, Japan.,Faculty of Agriculture, University of the Ryukyus, Okinawa 903-0213, Japan
| | - Hideki Tatemoto
- The United Graduate School of Agricultural Sciences, Kagoshima University, Kagoshima 890-0065, Japan.,Faculty of Agriculture, University of the Ryukyus, Okinawa 903-0213, Japan
| | - Ken-Ichi Yamanaka
- Faculty of Agriculture, Saga University, Saga 840-8502, Japan.,The United Graduate School of Agricultural Sciences, Kagoshima University, Kagoshima 890-0065, Japan
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10
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Abstract
Summer heat stress decreases the pregnancy rate in cattle and has been thought to be associated with the early embryonic death caused by the elevation of maternal body temperature. In vitro cultures have been widely used for the evaluation of effects of heat stress on oocytes, fertilization, preimplantation, and embryonic development. Susceptibility to heat stress is present in developmental stages from oocytes to cleavage-stage (before embryonic gene activation, EGA) embryos, leading to a consequent decrease in developmental competence. On the other hand, advanced-stage embryos such as morula or blastocysts have acquired thermotolerance. The mechanism for the developmental stage-dependent change in thermotolerance is considered to be the accumulation of antioxidants in embryos in response to heat-inducible production of reactive oxygen species. The supplementation of antioxidants to the culture media has been known to neutralize the detrimental effects of heat stress. Besides, EGA could be involved in acquisition of thermotolerance in later stages of embryos. Morulae or blastocysts can repair heat-induced unfolded proteins or prevent DNA damage occurring in processes such as apoptosis. Therefore, embryo transfer (ET) that can bypass the heat-sensitive stage could be a good solution to improve the pregnancy rate under heat stress. However, frozen-thawed ET could not improve the pregnancy rate as expected. Frozen-thawed blastocysts were more sensitive to heat stress and showed less proliferation upon heat exposure, compared to fresh blastocysts. Therefore, further research is required to improve the reduction in pregnancy rates due to summer heat stress.
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Affiliation(s)
- Miki Sakatani
- Livestock and Grassland Research Division, Kyushu Okinawa Agricultural Research Center, NARO, Kumamoto 861-1192, Japan
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11
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Velazquez MA, Kues WA, Niemann H. Biomedical applications of ovarian transvaginal ultrasonography in cattle. Anim Biotechnol 2014; 25:266-93. [PMID: 24813220 DOI: 10.1080/10495398.2013.870075] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
Ovarian transvaginal ultrasonography (OTU) has been used world-wide for commercial ovum pick-up programs for in vitro embryo production in elite herds, providing an excellent model for the elucidation of factors controlling bovine oocyte developmental competence. Noninvasive sampling and treatment of ovarian structures is easily accomplished with bovine OTU techniques providing a promising system for in vivo delivery of transgenes directly into the ovary. The current review summarizes existing bovine OTU models and provides prospective applications of bovine OTU to undertake research in reproductive topics of biomedical relevance, with special emphasis on the development of in vivo gene transfer strategies.
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Affiliation(s)
- Miguel A Velazquez
- a Centre for Biological Sciences , University of Southampton, Southampton General Hospital , Southampton , United Kingdom
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12
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Isobe T, Ikebata Y, Do LTK, Tanihara F, Taniguchi M, Otoi T. In vitrodevelopment of OPU-derived bovine embryos cultured either individually or in groups with the silk protein sericin and the viability of frozen-thawed embryos after transfer. Anim Sci J 2014; 86:661-5. [DOI: 10.1111/asj.12341] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2014] [Accepted: 09/21/2014] [Indexed: 11/30/2022]
Affiliation(s)
- Tomohiro Isobe
- Laboratory of Animal Reproduction; The United Graduate School of Veterinary Science; Yamaguchi University; Yamaguchi Japan
- Kagoshima Prefectural Government Livestock Division; Kagoshima Prefecture; Kagoshima Japan
| | | | - Lanh Thi Kim Do
- Laboratory of Animal Reproduction; The United Graduate School of Veterinary Science; Yamaguchi University; Yamaguchi Japan
| | - Fuminori Tanihara
- Laboratory of Animal Reproduction; The United Graduate School of Veterinary Science; Yamaguchi University; Yamaguchi Japan
| | - Masayasu Taniguchi
- Laboratory of Animal Reproduction; The United Graduate School of Veterinary Science; Yamaguchi University; Yamaguchi Japan
| | - Takeshige Otoi
- Laboratory of Animal Reproduction; The United Graduate School of Veterinary Science; Yamaguchi University; Yamaguchi Japan
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Abstract
SummaryThe aim of our study was to examine the effects of cow's body condition score (BCS; scale 1–5) and season on the quality of bovinein vitroproduced embryos. The proportion of good quality oocytes (Q1 and Q2) was higher (P< 0.05) in the BCS 2 (57.60%) and BCS 3 (60.90%) groups compared with the BCS 1 (43.60%) group. There were no statistical differences in embryo cleavage and blastocyst rate among the BCS groups. The highest total cell number (TCN, DAPI stain) of blastocysts (P< 0.05), recorded in BCS 1 (122.27 ± 6.90) in comparison with BCS 2 (101.8 ± 3.60) or BCS 3 (105.44 ± 3.70) groups, was related to higher dead cell (DCI, TUNEL) index in this group (7.07%) when compared with BCS 2 (6.54%) or BCS 3 (6.06%), respectively. The yield of good quality oocytes during spring was lower (P< 0.05) compared with the summer season. There were significant differences (P< 0.05) in maturation and cleavage rates between autumn and summer (73.42%, 76.2% vs. 85.0%, 41.8%, respectively). The highest (P< 0.01) blastocyst rate was noted during spring and summer months. Significant difference (P< 0.05) in the TCN among spring (99.38 ± 3.90), autumn (110.1 ± 4.58) or summer (108.96 ± 3.52) was observed. The highest proportion of embryos with the best (grade I) actin cytoskeleton (phalloidin–TRITC) quality was noted during the summer months. Our results indicate that body condition affects the initial quality of oocytes, but does not affect embryo cleavage, blastocyst rate and actin quality. This finding may suggest that developmentin vitrocan mask the influence of BCS. The season affects yield and quality of blastocysts in the way that the autumn period is more favorable for embryo development.
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Seasonal variations in developmental competence and relative abundance of gene transcripts in buffalo (Bubalus bubalis) oocytes. Theriogenology 2014; 82:1055-67. [PMID: 25156970 DOI: 10.1016/j.theriogenology.2014.07.008] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2013] [Revised: 06/29/2014] [Accepted: 07/03/2014] [Indexed: 11/20/2022]
Abstract
Hot season is a major constraint to production and reproduction in buffaloes. The present work aimed to investigate the effect of season on ovarian function, developmental competence, and the relative abundance of gene expression in buffalo oocytes. Three experiments were conducted. In experiment 1, pairs of buffalo ovaries were collected during cold season (CS, autumn and winter) and hot season (HS, spring and summer), and the number of antral follicles was recorded. Cumulus oocyte complexes (COCs) were aspirated and evaluated according to their morphology into four Grades. In experiment 2, Grade A and B COCs collected during CS and HS were in vitro matured (IVM) for 24 hours under standard conditions at 38.5 °C in a humidified air of 5% CO2. After IVM, cumulus cells were removed and oocytes were fixed, stained with 1% aceto-orcein, and evaluated for nuclear configuration. In vitro matured buffalo oocytes harvested during CS or HS were in vitro fertilized (IVF) using frozen-thawed buffalo semen and cultured in vitro to the blastocyst stage. In experiment 3, buffalo COCs and in vitro matured oocytes were collected during CS and HS, and then snap frozen in liquid nitrogen for gene expression analysis. Total RNA was extracted from COCs and in vitro matured oocytes, and complementary DNA was synthesized; quantitative Reverse Transcription-Polymerase Chain Reaction was performed for eight candidate genes including GAPDH, ACTB, B2M, GDF9, BMP15, HSP70, and SOD2. The results indicated that HS significantly (P < 0.01) decreased the number of antral follicles and the number of COCs recovered per ovary. The number of Grade A, B, and C COCs was lower (P < 0.05) during HS than CS. In vitro maturation of buffalo oocytes during HS significantly (P < 0.01) reduced the number of oocytes reaching the metaphase II stage and increased the percentage of degenerated oocytes compared with CS. Oocytes collected during HS also showed signs of cytoplasmic degeneration. After IVF, cleavage rate was lower (P < 0.01) for oocytes collected during HS, and the percentage of oocytes arrested at the two-cell stage was higher (P < 0.01) than oocytes IVF during CS. Oocytes matured during CS showed a higher (P < 0.01) blastocyst rate than those matured during HS. Also, COCs recovered in HS showed significant (P < 0.05) upregulation of HSP70 mRNA expression compared with those recovered in CS. For in vitro matured oocytes, CS down regulated the transcript abundance of ACTB and upregulated GAPDH and HSP70 mRNA levels compared with HS condition. In conclusion, HS could impair buffalo fertility by reducing the number of antral follicles and oocyte quality. In vitro maturation of buffalo oocytes during HS impairs their nuclear and cytoplasmic maturation, fertilization, and subsequent embryo development to the morula and blastocyst stages. This could be in part because of the altered gene expression found in COCs and in vitro matured oocytes.
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15
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Aono A, Nagatomo H, Takuma T, Nonaka R, Ono Y, Wada Y, Abe Y, Takahashi M, Watanabe T, Kawahara M. Dynamics of intracellular phospholipid membrane organization during oocyte maturation and successful vitrification of immature oocytes retrieved by ovum pick-up in cattle. Theriogenology 2013; 79:1146-1152.e1. [DOI: 10.1016/j.theriogenology.2013.02.009] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2012] [Revised: 02/13/2013] [Accepted: 02/13/2013] [Indexed: 11/25/2022]
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SAKAGAMI N, UMEKI H, NISHINO O, UCHIYAMA H, ICHIKAWA K, TAKESHITA K, KANEKO E, AKIYAMA K, KOBAYASHI S, TAMADA H. Normal Calves Produced After Transfer of Embryos Cultured in a Chemically Defined Medium Supplemented with Epidermal Growth Factor and Insulin-like Growth Factor I Following Ovum Pick Up and In Vitro Fertilization in Japanese Black Cows. J Reprod Dev 2012; 58:140-6. [DOI: 10.1262/jrd.11-050m] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Affiliation(s)
- Nobutada SAKAGAMI
- Livestock Industry Technology Station, Kanagawa Agricultural Technology Center, Kanagawa 243-0417, Japan
| | - Hidenobu UMEKI
- Oita Prefectural Agriculture, Forestry and Fisheries Research Center Livestock Research Institute, Ooita 878-0201, Japan
| | - Osamu NISHINO
- Nara Prefectural Livestock Technology Center, Nara 633-1302, Japan
| | - Hiroko UCHIYAMA
- Miyazaki Prefectural Livestock Research Institute, Miyazaki 889-4411, Japan
| | - Kyoko ICHIKAWA
- Kochi Prefectural Livestock Research Institute, Kochi 789-1233, Japan
| | - Kazuhisa TAKESHITA
- Yamaguchi Prefectural Livestock Experiment Station, Yamaguchi 759-2221, Japan
| | - Etsushi KANEKO
- Livestock Industry Technology Station, Kanagawa Agricultural Technology Center, Kanagawa 243-0417, Japan
| | - Kiyoshi AKIYAMA
- Livestock Industry Technology Station, Kanagawa Agricultural Technology Center, Kanagawa 243-0417, Japan
| | - Shuji KOBAYASHI
- National Livestock Breeding Center, Fukushima 961-8511, Japan
| | - Hiromichi TAMADA
- Department of Advanced Pathobiology, Graduate School of Life and Environmental Sciences, Osaka Prefecture University, Osaka 598-8531, Japan
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Ratto M, Peralta O, Mogollon G, Strobel P, Correa J. Transvaginal ultrasound-guided cumulus oocyte complexes aspiration and in vitro embryo production in suckled beef and lactating dairy cattle on pasture-based management conditions. Anim Reprod Sci 2011; 129:1-6. [DOI: 10.1016/j.anireprosci.2011.10.001] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2011] [Revised: 09/28/2011] [Accepted: 10/02/2011] [Indexed: 11/26/2022]
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