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Cabeza OI, Parra N, Cerro R, Mansilla R, Sanchez RZ, Gutierrez-Reinoso M, Escribano EH, Castillo R, Rodriguez-Alvarez L, Tavares K, Gaudencio S, Martins L, Hugues FI, Acosta J, Moreno E, Montesino R, García-Herreros M, Casanova FC, Toledo JR, Sanchez O. Development and characterization of a novel variant of long-acting bovine follicle-stimulating hormone (brscFSH). Theriogenology 2024; 226:76-86. [PMID: 38865791 DOI: 10.1016/j.theriogenology.2024.05.038] [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: 12/18/2023] [Revised: 03/31/2024] [Accepted: 05/24/2024] [Indexed: 06/14/2024]
Abstract
Assisted reproduction is a key aspect of modern animal breeding, providing valuable assistance in improving breeding programs. In this field, the administration of exogenous hormones, such as follicle-stimulating hormone (FSH), plays a crucial role in the induction of multiple ovulations. However, commercial FSH used in veterinary practice has been derived primarily from pituitary glands, obtained mostly from pigs for nearly four decades. Although these hormones have contributed significantly to the advancement of assisted reproductive techniques, they have certain limitations that warrant further improvements. These limitations include contamination with luteinizing hormone (LH), the potential risk of pathogen contamination, the potential to trigger an immune response in non-pig species, and the short half-life in circulation, requiring the implementation of complex 8-dose superovulation schedules. Our research team has developed and characterized a new variant of bovine follicle-stimulating hormone (bscrFSH) to address these limitations. The new hormone is produced recombinantly in CHO cell cultures, with a specific productivity of about 30 pg/cell/day. The bscrFSH can be purified to a high purity of 97 % using a single step of immobilized metal affinity chromatography (IMAC). N-glycan analysis of bscrFSH showed that approximately 74 % of the glycans corresponded to charged structures, including mono-, di-, tri-, and tetra-sialylated glycans. Superovulation trials conducted in cattle revealed that bscrFSH, administered at a total dose of about 0.5 μg per kg of body weight, using a decrescent schedule of 4 doses with 24-h intervals, resulted in an average yield of 8-12 transferable embryos per animal. Further research is required; however, the preliminary findings indicate that bscrFSH, currently packaged under the provisional brand name of Cebitropin B, holds potential as a commercial product for assisted reproduction in ruminants.
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Affiliation(s)
- Oscar Ignacio Cabeza
- Departamento de Ciencias Clínicas, Facultad de Veterinaria, Universidad de Concepción, Chile
| | - Natalie Parra
- Departamento de Farmacología, Universidad de Concepción, Chile
| | - Rita Cerro
- Centro de Biotecnología y Biomedicina Spa., Concepción, Chile
| | | | | | - Miguel Gutierrez-Reinoso
- Departamento de Ciencia Animal, Facultad de Veterinaria, Universidad de Concepción, Chile; Facultad de Ciencias Agropecuarias y Recursos Naturales, Carrera de medicina, Universidad Técnica de Cotopaxi (UTC), Latacunga, 050150, Ecuador
| | | | | | | | - Kaio Tavares
- Núcleo de Biologia Experimental (Nubex), Universidade de Fortaleza (Unifor), Fortaleza, CE, Brazil; FortGen Technologies, Fortaleza, CE, Brazil
| | - Saul Gaudencio
- Núcleo de Biologia Experimental (Nubex), Universidade de Fortaleza (Unifor), Fortaleza, CE, Brazil; FortGen Technologies, Fortaleza, CE, Brazil
| | - Leonardo Martins
- Núcleo de Biologia Experimental (Nubex), Universidade de Fortaleza (Unifor), Fortaleza, CE, Brazil; FortGen Technologies, Fortaleza, CE, Brazil
| | - Florence I Hugues
- Departamento de Ciencias Clínicas, Facultad de Veterinaria, Universidad de Concepción, Chile
| | - Jannel Acosta
- Departamento de Fisiopatología, Universidad de Concepción, Chile
| | - Ernesto Moreno
- Facultad de Ciencias Básicas, Universidad de Medellín, Medellín, 050026, Colombia
| | - Raquel Montesino
- Departamento de Fisiopatología, Universidad de Concepción, Chile
| | - Manuel García-Herreros
- Instituto Nacional de Investigação Agrária e Veterinária (INIAV), 2005-048, Santarém, Portugal
| | | | - Jorge R Toledo
- Centro de Biotecnología y Biomedicina Spa., Concepción, Chile; Departamento de Fisiopatología, Universidad de Concepción, Chile
| | - Oliberto Sanchez
- Centro de Biotecnología y Biomedicina Spa., Concepción, Chile; Departamento de Farmacología, Universidad de Concepción, Chile.
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Mikkola M, Desmet KLJ, Kommisrud E, Riegler MA. Recent advancements to increase success in assisted reproductive technologies in cattle. Anim Reprod 2024; 21:e20240031. [PMID: 39176005 PMCID: PMC11340803 DOI: 10.1590/1984-3143-ar2024-0031] [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: 03/15/2024] [Accepted: 06/14/2024] [Indexed: 08/24/2024] Open
Abstract
Assisted reproductive technologies (ART) are fundamental for cattle breeding and sustainable food production. Together with genomic selection, these technologies contribute to reducing the generation interval and accelerating genetic progress. In this paper, we discuss advancements in technologies used in the fertility evaluation of breeding animals, and the collection, processing, and preservation of the gametes. It is of utmost importance for the breeding industry to select dams and sires of the next generation as young as possible, as is the efficient and timely collection of gametes. There is a need for reliable and easily applicable methods to evaluate sexual maturity and fertility. Although gametes processing and preservation have been improved in recent decades, challenges are still encountered. The targeted use of sexed semen and beef semen has obliterated the production of surplus replacement heifers and bull calves from dairy breeds, markedly improving animal welfare and ethical considerations in production practices. Parallel with new technologies, many well-established technologies remain relevant, although with evolving applications. In vitro production (IVP) has become the predominant method of embryo production. Although fundamental improvements in IVP procedures have been established, the quality of IVP embryos remains inferior to their in vivo counterparts. Improvements to facilitate oocyte maturation and development of new culture systems, e.g. microfluidics, are presented in this paper. New non-invasive and objective tools are needed to select embryos for transfer. Cryopreservation of semen and embryos plays a pivotal role in the distribution of genetics, and we discuss the challenges and opportunities in this field. Finally, machine learning (ML) is gaining ground in agriculture and ART. This paper delves into the utilization of emerging technologies in ART, along with the current status, key challenges, and future prospects of ML in both research and practical applications within ART.
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Affiliation(s)
| | | | - Elisabeth Kommisrud
- CRESCO, Centre for Embryology and Healthy Development, Department of Biotechnology, Inland Norway University of Applied Sciences, Hamar, Norway
| | - Michael A. Riegler
- Holistic Systems Department, Simula Metropolitan Center for Digital Engineering, Oslo, Norway
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3
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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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Villarraza J, Antuña S, Tardivo MB, Rodríguez MC, Díaz PU, Notaro US, Ortega HH, Prieto C, Ceaglio N. Development of a biotechnology process for the production of a novel hyperglycosylated long-acting recombinant bovine follicle-stimulating hormone. Biotechnol J 2024; 19:e2400260. [PMID: 38900054 DOI: 10.1002/biot.202400260] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2024] [Revised: 05/17/2024] [Accepted: 05/28/2024] [Indexed: 06/21/2024]
Abstract
Follicle-stimulating hormone (FSH) is an important protein used for bovine ovarian hyperstimulation in multiple ovulation and embryo transfer technology (MOET). Several attempts to produce bovine FSH (bFSH) in recombinant systems have been reported, nonetheless, up to date, the most commonly used products are partially purified preparations derived from porcine or ovine (pFSH or oFSH) pituitaries. Here we describe the development of a biotechnology process to produce a novel, hyperglycosylated, long-acting recombinant bFSH (LA-rbFSH) by fusing copies of a highly O-glycosylated peptide. LA-rbFSH and a nonmodified version (rbFSH) were produced in suspension CHO cell cultures and purified by IMAC with high purity levels (>99%). LA-rbFSH presented a higher glycosylation degree and sialic acid content than rbFSH. It also demonstrated a notable improvement in pharmacokinetic properties after administration to rats, including a higher concentration in plasma and a significant (seven-fold) reduction in apparent clearance (CLapp). In addition, the in vivo specific bioactivity of LA-rbFSH in rats was 2.4-fold higher compared to rbFSH. These results postulate this new molecule as an attractive substitute for commercially available porcine pituitary-derived products.
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Affiliation(s)
- Javier Villarraza
- UNL (Universidad Nacional del Litoral), CBL (Centro Biotecnológico del Litoral), LDB (Laboratorio de Desarrollo Biotecnológico), Ciudad Universitaria, Santa Fe, Argentina
- CONICET (Consejo Nacional de Investigaciones Científicas y Técnicas), Santa Fe, Argentina
| | - Sebastián Antuña
- Biotecnofe S.A. Parque Tecnológico Litoral Centro (PTLC), Santa Fe, Argentina
| | - María Belén Tardivo
- Biotecnofe S.A. Parque Tecnológico Litoral Centro (PTLC), Santa Fe, Argentina
| | - María Celeste Rodríguez
- UNL (Universidad Nacional del Litoral), CBL (Centro Biotecnológico del Litoral), LDB (Laboratorio de Desarrollo Biotecnológico), Ciudad Universitaria, Santa Fe, Argentina
- CONICET (Consejo Nacional de Investigaciones Científicas y Técnicas), Santa Fe, Argentina
- UNL (Universidad Nacional del Litoral), FBCB (Facultad de Bioquímica y Ciencias Biológicas), Cátedra de Química Analítica II, Ciudad Universitaria, Santa Fe, Argentina
| | - Pablo Uriel Díaz
- CONICET (Consejo Nacional de Investigaciones Científicas y Técnicas), Santa Fe, Argentina
- Centro de Medicina Comparada, Instituto de Ciencias Veterinarias del Litoral (ICiVet-Litoral), Universidad Nacional del Litoral (UNL)/Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Esperanza, Santa Fe, Argentina
| | - Ulises Sebastián Notaro
- CONICET (Consejo Nacional de Investigaciones Científicas y Técnicas), Santa Fe, Argentina
- Centro de Medicina Comparada, Instituto de Ciencias Veterinarias del Litoral (ICiVet-Litoral), Universidad Nacional del Litoral (UNL)/Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Esperanza, Santa Fe, Argentina
| | - Hugo Héctor Ortega
- CONICET (Consejo Nacional de Investigaciones Científicas y Técnicas), Santa Fe, Argentina
- Centro de Medicina Comparada, Instituto de Ciencias Veterinarias del Litoral (ICiVet-Litoral), Universidad Nacional del Litoral (UNL)/Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Esperanza, Santa Fe, Argentina
| | - Claudio Prieto
- UNL (Universidad Nacional del Litoral), CBL (Centro Biotecnológico del Litoral), LDB (Laboratorio de Desarrollo Biotecnológico), Ciudad Universitaria, Santa Fe, Argentina
- Biotecnofe S.A. Parque Tecnológico Litoral Centro (PTLC), Santa Fe, Argentina
| | - Natalia Ceaglio
- CONICET (Consejo Nacional de Investigaciones Científicas y Técnicas), Santa Fe, Argentina
- UNL (Universidad Nacional del Litoral), FBCB (Facultad de Bioquímica y Ciencias Biológicas), CBL (Centro Biotecnológico del Litoral), LCC (Laboratorio de Cultivos Celulares), Ciudad Universitaria, Santa Fe, Argentina
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5
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Song Y, Zhang N, Yue Y, Chen D, Chou C, An L, Cheng L, Zhang J, Tian J. Field outcomes of laparoscopic ovum pick-up combined with in vitro embryo production in sheep: Effects of long-acting recombinant ovine FSH pre-stimulation, collection frequency, and donor breed. Domest Anim Endocrinol 2024; 87:106826. [PMID: 38043389 DOI: 10.1016/j.domaniend.2023.106826] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/24/2023] [Revised: 11/07/2023] [Accepted: 11/17/2023] [Indexed: 12/05/2023]
Abstract
Laparoscopic ovum pick-up (LOPU) combined with in vitro embryo production (IVEP) is a technology platform that improves the utilization rate of the elite ewe's ovarian oocytes and increases the number of obtained offspring. This study aimed to evaluate the effects of FSH pre-stimulation, serial oocyte collection, and breed on LOPU-IVEP under field conditions. Donors were randomly assigned to five groups (group A: decreasing doses of pituitary FSH (p-FSH); group B: constant doses of p-FSH; group C: two doses of long-acting recombinant ovine FSH (ro-FSH); group D: single administration of a long-acting ro-FSH in; group E: no FSH stimulation). Oocyte yield following LOPU (average recovered oocytes: 20.9 ± 0.5; average viable oocytes: 17.2 ± 0.4) and oocyte developmental competence (average blastocysts: 7.0 ± 0.2) in group C were significantly better than these of group D and group E, and similar to these of groups A and B. Meanwhile, there were no differences in oocyte yield and developmental capacity using repeated LOPU session at 1-, 2-, and 3-month intervals (p > 0.05). Finally, we compared LOPU-IVEP outcomes among five sheep breeds. The results indicated that East Friesian × Chinese Mongolian crossbred sheep and purebred East Friesian sheep had the more recovered oocytes and viable oocytes compared with the Suffolk, Dorper, and Texel breeds, and average number of blastocysts in East Friesian × Chinese Mongolian sheep group was also highest among the groups (8.1 ±0.3, p < 0.05). In summary, the results of this study indicate long-acting ro-FSH pre-stimulation combined with 12 times LOPU sessions over one year maximizes embryo production of elite donor ewes under field conditions.
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Affiliation(s)
- Yukun Song
- Inner Mongolia Key Laboratory of Sheep & Goat Genetics Breeding and Reproduction, College of Animal Science, Inner Mongolia Agricultural University, Hohhot, Inner Mongolia 010018, China
| | - Nan Zhang
- Inner Mongolia Key Laboratory of Sheep & Goat Genetics Breeding and Reproduction, College of Animal Science, Inner Mongolia Agricultural University, Hohhot, Inner Mongolia 010018, China
| | - Yuan Yue
- College of Animal Science and Technology, China Agricultural University, Beijing 100193, China
| | - Dayong Chen
- Inner Mongolia Sino Sheep Technology Co. Ltd., Ulanqab, Inner Mongolia 011800, China
| | - Chunjuan Chou
- Inner Mongolia Sino Sheep Technology Co. Ltd., Ulanqab, Inner Mongolia 011800, China
| | - Lei An
- College of Animal Science and Technology, China Agricultural University, Beijing 100193, China
| | - Lei Cheng
- Xilingol Vocational College, Xilinhot, Inner Mongolia 026000, China
| | - Jiaxin Zhang
- Inner Mongolia Key Laboratory of Sheep & Goat Genetics Breeding and Reproduction, College of Animal Science, Inner Mongolia Agricultural University, Hohhot, Inner Mongolia 010018, China.
| | - Jianhui Tian
- College of Animal Science and Technology, China Agricultural University, Beijing 100193, China.
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Abreu C, Grunberg K, Bonilla M, Crispo M, Pantano S, Jaeschke J, Comini MA, Bollati‐Fogolín M. Expression and functional characterization of chimeric recombinant bovine follicle-stimulating hormone produced in Leishmania tarentolae. Microb Biotechnol 2024; 17:e14444. [PMID: 38564168 PMCID: PMC10986757 DOI: 10.1111/1751-7915.14444] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2023] [Revised: 02/13/2024] [Accepted: 02/28/2024] [Indexed: 04/04/2024] Open
Abstract
Assisted reproductive techniques are routinely used in livestock species to increase and enhance productivity. Ovarian hyperstimulation is a process that currently relies on administering pituitary-derived follicle-stimulating hormone (FSH) or equine chorionic gonadotropin in combination with other hormones to promote the maturation of multiple follicles and thereby achieve superovulation. The use of partially purified preparations of FSH extracted from natural sources is associated with suboptimal and variable results. Recombinant FSH (rFSH) has been produced in a variety of heterologous organisms. However, attaining a bioactive rFSH of high quality and at low cost for use in livestock remains challenging. Here we report the production and characterization of a single chain bovine rFSH consisting of the β- and α-subunit fused by a polypeptide linker (scbFSH) using Leishmania tarentolae as heterologous expression system. This unicellular eukaryote is non-pathogenic to mammals, can be grown in bioreactors using simple and inexpensive semisynthetic media at 26°C and does not require CO2 or bovine serum supplementation. Stable cell lines expressing scbFSH in an inducible fashion were generated and characterized for their productivity. Different culture conditions and purification procedures were evaluated, and the recombinant product was biochemically and biologically characterized, including bioassays in an animal model. The results demonstrate that L. tarentolae is a suitable host for producing a homogeneous, glycosylated and biologically active form of scbFSH with a reasonable yield.
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Affiliation(s)
- Cecilia Abreu
- Molecular, Cellular and Animal Technology ProgramInstitut Pasteur de MontevideoMontevideoUruguay
| | - Karin Grunberg
- Molecular, Cellular and Animal Technology ProgramInstitut Pasteur de MontevideoMontevideoUruguay
| | - Mariana Bonilla
- Laboratory Redox Biology of TrypanosomesInstitut Pasteur de MontevideoMontevideoUruguay
| | - Martina Crispo
- Molecular, Cellular and Animal Technology ProgramInstitut Pasteur de MontevideoMontevideoUruguay
- Laboratory Animal Biotechnology UnitInstitut Pasteur de MontevideoMontevideoUruguay
| | - Sergio Pantano
- Molecular, Cellular and Animal Technology ProgramInstitut Pasteur de MontevideoMontevideoUruguay
- Biomolecular Simulations GroupInstitut Pasteur de MontevideoMontevideoUruguay
| | | | - Marcelo A. Comini
- Molecular, Cellular and Animal Technology ProgramInstitut Pasteur de MontevideoMontevideoUruguay
- Laboratory Redox Biology of TrypanosomesInstitut Pasteur de MontevideoMontevideoUruguay
| | - Mariela Bollati‐Fogolín
- Molecular, Cellular and Animal Technology ProgramInstitut Pasteur de MontevideoMontevideoUruguay
- Cell Biology Unit, Institut Pasteur de MontevideoMontevideoUruguay
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7
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El-Shazly M, Mansour N, Karen A, Salama M, Hijazi I, El-Ghazaly M, Sheply K, Jaques S. Evaluation of a long-acting recombinant bovine FSH for multiple ovulation and embryo transfer in dromedary camels. Anim Reprod Sci 2024; 261:107398. [PMID: 38128190 DOI: 10.1016/j.anireprosci.2023.107398] [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: 11/09/2023] [Accepted: 12/13/2023] [Indexed: 12/23/2023]
Abstract
The present study was conducted to test a new super-agonist recombinant bovine FSH (rbFSH) to induce superovulation (SOV) in dromedary camels. In experiment I, a single IM injection of 40, 60, 80, 100, or 120 µg rbFSH was administered (4 donors per group) to determine the effective dose resulting in acceptable multiple ovulation and embryo yield. Administration of 40 µg was ineffective, while 100 and 120 µg were associated with increased numbers of developed follicles, corpora lutea, and recovered embryos compared to administration of 60 and 80 µg. In experiment II, donors were divided into treatment groups to compare rbFSH with two conventional protocols for SOV. Donors received a single dose of 2000 IU eCG in combination with 400 mg porcine follicle-stimulating hormone (pFSH; Folltropin-V®; Group 1, n = 29) or 500 µg of pFSH with 100 µg of pLH (Stimufol®; Group 2, n = 16). Group 3 (n = 19) received a single dose of 100 µg rbFSH. No difference was found in the size and number of follicles per donor. Response time, ovulation rate, and the number of corpora lutea and recovered embryos per donor were similar in all groups. The number of medium-sized and transparent embryos decreased while the number of small-sized and semi-transparent embryos increased in Group 3 (rbFSH) compared to the other two groups. The pregnancy rate of the recipients at 10 days post-ET, at two months of gestation, and the rate of early pregnancy loss (EPL) did not differ among the groups. In conclusion, a single IM administration of 100 µg rbFSH induces a successful superovulation in dromedary camels and has the advantage of reducing stress associated with multiple FSH administration of the conventional protocols.
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Affiliation(s)
- Mohamed El-Shazly
- Aljazeera Veterinary Research Center, Al-Ain, Abu-Dhabi, United Arab Emirates
| | - Nabil Mansour
- Fujairah Research Centre (FRC), Al-Hilal Tower 3003, P.O. Box 666, Fujairah, United Arab Emirates; Department of Theriogenology, Faculty of Veterinary Medicine, Kafrelsheikh University, Egypt.
| | - Aly Karen
- Department of Theriogenology, Faculty of Veterinary Medicine, Kafrelsheikh University, Egypt; Tharb Camel Hospital, Leawina, State of Qatar
| | - Mahmoud Salama
- Aljazeera Veterinary Research Center, Al-Ain, Abu-Dhabi, United Arab Emirates; Animal Health Research Institute, Dokki, Giza, Cairo, Egypt
| | - Ibrar Hijazi
- Aljazeera Veterinary Research Center, Al-Ain, Abu-Dhabi, United Arab Emirates
| | - Mahmoud El-Ghazaly
- Aljazeera Veterinary Research Center, Al-Ain, Abu-Dhabi, United Arab Emirates
| | - Kasem Sheply
- Aljazeera Veterinary Research Center, Al-Ain, Abu-Dhabi, United Arab Emirates
| | - Scott Jaques
- Applied Biosciences LLC, Wellborn 77881, TX, USA
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8
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Gutierrez-Reinoso MA, Arreseigor CJ, Driedger B, Cabezas I, Hugues F, Parra NC, Sánchez O, Toledo JR, Garcia-Herreros M. Effects of recombinant FSH (bscrFSH) and pituitary FSH (FSH-p) on embryo production in superovulated dairy heifers inseminated with unsorted and sex-sorted semen. Anim Reprod Sci 2023; 252:107226. [PMID: 37027990 DOI: 10.1016/j.anireprosci.2023.107226] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2023] [Revised: 03/22/2023] [Accepted: 03/27/2023] [Indexed: 03/30/2023]
Abstract
Superovulation is a drug-based method used in cattle to stimulate the ovarian folliculogenesis and the number of oocytes and transferable embryos. The present study aimed to test the effects of recombinant FSH (bscrFSH) and pituitary FSH (FSH-p) on ovarian response and in vivo embryo production in superovulated dairy heifers inseminated with unsorted and sex-sorted semen. Forty healthy Holstein heifers subjected to a superovulation (SOV) protocol by using FSH-p or bscrFSH were divided randomly into four groups: a) FSH-p inseminated with unsorted semen (USP; n = 10), b) FSH-p inseminated with sex-sorted semen (SSP; n = 10), c) bscrFSH inseminated with unsorted semen (USR; n = 10), and d) bscrFSH inseminated with sex-sorted semen (SSR; n = 10). Ultrasonography was carried out on Day 8 (estrus) and Day 15 (embryo collection) to evaluate the ovarian structures [follicles (FL), corpora lutea (CL), and non-ovulated follicles (NOFL)]. Embryonic-derived parameters were scored on Day 15 [total structures collected (TS), unfertilised oocytes (UFOs), total embryos (TEs), transferable embryos (TFEs), freezable embryos (FEs), and degenerated embryos (DEs)]. No differences were observed regarding ovarian structures (FL and NOFL) irrespective of SOV protocol or group assessed (P > 0.05). CL increased in bscrFSH-derived SOV protocol (P < 0.05). On Day 15, the embryonic-derived parameters TEs, TFEs, and FEs decreased in SSP/SSR compared to USP/USR (P < 0.05). Differences were observed regarding UFOs, with a greater number in SSP and SSR (P = 0.01). In conclusion, the bscrFSH-derived SOV protocol showed improved results compared to FSH-p-derived SOV protocol regarding ovarian (CL) and embryo-derived (TFE) parameters irrespective of the type of semen used.
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Khodadadi A, Niasari-Naslaji A, Nikjou D, Mohammadi B. Superovulation of high-producing Holstein lactating dairy cows with human recombinant FSH and hMG. Theriogenology 2022; 191:239-244. [PMID: 35998407 DOI: 10.1016/j.theriogenology.2022.08.010] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2022] [Revised: 06/23/2022] [Accepted: 08/05/2022] [Indexed: 11/18/2022]
Abstract
Superovulation of high-producing dairy cows is a challenging subject in dairy farms with respect to the cost, dose and type of gonadotropin. The objectives of this study were to compare three gonadotropin products: Folltropin-V® (highly purified FSH with porcine origin), Cinnal-f® (recombinant human FSH) and Menotropins® (hMG) for superovulation in high-producing Holstein lactating dairy cows and to investigate the pregnancy outcomes achieved following transferring embryos recovered from donors treated with different gonadotropins. Healthy high-producing Holstein lactating dairy cows (n = 30; milk production: 46.35 ± 8.78 kg; parity: 2-4; days in milk: 80-130 days) without any puerperal problems were selected as donors. On Day 10 after estrus (Day 0 of superovulation), donors (10 cows in each experimental groups) received Folltropin-V® (400 mg NIH, dissolved in 20 ml), Cinnal-f® (20 vials; each vial of 1 ml contains 75 IU Follitropin alfa) and Menotropins ® (20 ampules; each ampule of 1 ml contains 75 IU FSH and 75 IU LH), administered twice daily, in decreasing doses (4,4; 3,3; 2,2; 1,1 ml), over 4 days. On Day 2 of superovulation, donors received 3 doses of prostaglandin F2α analogue, 6 h apart. They were inseminated twice with a frozen semen at 12 and 24 h after standing estrus. Concurrent with the second insemination, donors received 2500 IU hCG (Karma Pharmatech GmbH, Germany). On Day 7 after standing estrus, superovulatory responses (number of CLs, total ova/embryos and transferable embryos) were recorded and Code 1 embryos, recovered from each treated donors, were transferred to synchronized heifers. Pregnancy was detected on Day 30 and 60 after AI. Gestation length, the number and weight of live births were recorded. Data were analyzed using Proc GLM, Proc Mixed and Proc Genmod of SAS. The respective number of corpora lutea, total number of ova/embryos and transferable embryos were not different among donors received Cinnal-f (25.5 ± 3.01, 11.2 ± 2.77, 5.1 ± 0.86), Menotropins (24.0 ± 3.21, 9.0 ± 2.04, 6.3 ± 1.74) and Folltropin-V (20.3 ± 3.21, 8.9 ± 1.90, 5.1 ± 1.16; P > 0.05). Pregnancy rates on Day 30 was similar among treatment groups (P > 0.05). However, pregnancy rates on Day 60 and the number of calves born healthy was less in heifers that received embryos from Cinnal-f treated donors (P < 0.05). In conclusion, Cinnal-f and Menotropins could provide similar superovulatory response to Folltropin-V for superovulation of high-producing Holstein lactating dairy cows.
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Affiliation(s)
- Alireza Khodadadi
- Department of Theriogenology, Faculty of Veterinary Medicine, University of Tehran, Tehran, Iran
| | - Amir Niasari-Naslaji
- Department of Theriogenology, Faculty of Veterinary Medicine, University of Tehran, Tehran, Iran.
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Towards Improving the Outcomes of Multiple Ovulation and Embryo Transfer in Sheep, with Particular Focus on Donor Superovulation. Vet Sci 2022; 9:vetsci9030117. [PMID: 35324845 PMCID: PMC8953989 DOI: 10.3390/vetsci9030117] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2022] [Revised: 02/22/2022] [Accepted: 03/01/2022] [Indexed: 02/05/2023] Open
Abstract
Considerable improvements in sheep multiple ovulation and embryo transfer (MOET)protocols have been made; however, unlike for cattle, MOET is poorly developed in sheep, and thus has not been broadly applicable as a routine procedure. The tightly folded nature of the ewe cervix, the inconsistent ovarian response to various superovulatory treatments, and the requirement of labor to handle animals, particularly during large-scale production, has limited the implementation of successful MOET in sheep. Moreover, several extrinsic factors (e.g., sources, the purity of gonadotrophins and their administration) and intrinsic factors (e.g., breed, age, nutrition, reproductive status) severely limit the practicability of MOET in sheep and other domestic animals. In this review, we summarize the effects of different superovulatory protocols, and their respective ovarian responses, in terms of ovulation rate, and embryo recovery and transfer. Furthermore, various strategies, such as inhibin immunization, conventional superovulation protocols, and melatonin implants for improving the ovarian response, are discussed in detail. Other reproductive techniques and their relative advantages and disadvantages, such as artificial insemination (AI), and donor embryo recovery and transfer to the recipient through different procedures, which must be taken into consideration for achieving satisfactory results during any MOET program in sheep, are also summarized in this article.
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