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Ribeiro ACS, Pinto PHN, Santos JDR, Ramalho NP, Laeber CCR, Balaro MFA, Batista RITP, Souza-Fabjan JMG, da Fonseca JF, Ungerfeld R, Brandão FZ. The pFSH dose affects the efficiency of in vivo embryo production in Santa Inês ewes. Anim Reprod Sci 2024; 264:107459. [PMID: 38598889 DOI: 10.1016/j.anireprosci.2024.107459] [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: 12/05/2023] [Revised: 03/16/2024] [Accepted: 03/20/2024] [Indexed: 04/12/2024]
Abstract
This study compared the follicular growth, superovulatory response, and in vivo embryo production after administering two doses of porcine follicle-stimulating hormone (pFSH) in Santa Inês ewes. The estrous cycle of 36 multiparous ewes was synchronized with the Day 0 protocol and superovulated with 133 mg (G133, n=18) or 200 mg (G200, n=18) of pFSH. Ultrasonographic evaluations of the ovaries were performed, ewes were mated and submitted to non-surgical embryo recovery. Viable blastocysts were stained with Nile Red and Hoechst. The G200 had a greater number of medium and large follicles, as well as a larger size of the third largest follicle. A total of 97.2% (35/36) of the ewes came into estrus and it was possible to transpose cervix in 80.6% (29/36). There were no effects of treatments in the response to superovulation, the proportion of ewes in which was possible to transpose the cervix, the number of corpora lutea, the number of anovulatory follicles, the proportion of ewes flushed with at least one recovered structure, number of recovered structures, number of viable embryos, viability rate, and recovery rate. The G200 ewes were in estrus for a longer period of time than the G133 ewes (54.0 ± 4.5 h vs. 40.3 ± 3.6 h) and produced more freezable embryos (6.5 ± 1.6 vs. 2.3 ± 0.7) than G133. Both doses promoted an efficient superovulatory response and did not affect embryonic lipid accumulation. The dose of 200 mg of pFSH showed greater potential to increase the superovulatory response, as it increased follicular recruitment and the recovery of freezable embryos.
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Affiliation(s)
- Ana Clara Sarzedas Ribeiro
- Faculdade de Veterinária, Universidade Federal Fluminense, Av. Vital Brasil Filho, 64, Niterói, RJ CEP 24230-340, Brazil.
| | - Pedro Henrique Nicolau Pinto
- Faculdade de Veterinária, Universidade Federal Fluminense, Av. Vital Brasil Filho, 64, Niterói, RJ CEP 24230-340, Brazil
| | | | - Nadiala Porto Ramalho
- Faculdade de Veterinária, Universidade Federal Fluminense, Av. Vital Brasil Filho, 64, Niterói, RJ CEP 24230-340, Brazil
| | - Camila Correa Roza Laeber
- Faculdade de Veterinária, Universidade Federal Fluminense, Av. Vital Brasil Filho, 64, Niterói, RJ CEP 24230-340, Brazil
| | - Mario Felipe Alvarez Balaro
- Faculdade de Veterinária, Universidade Federal Fluminense, Av. Vital Brasil Filho, 64, Niterói, RJ CEP 24230-340, Brazil
| | | | | | - Jeferson Ferreira da Fonseca
- Embrapa Caprinos e Ovinos, Núcleo Regional Sudeste, Rodovia MG 133, Km 42, Coronel Pacheco, MG CEP 36155-000, Brazil
| | - Rodolfo Ungerfeld
- Departamento de Biociencias Veterinarias, Facultad de Veterinaria, Universidad de la República, Ruta 8 km 18, Montevideo 13000, Uruguay
| | - Felipe Zandonadi Brandão
- Faculdade de Veterinária, Universidade Federal Fluminense, Av. Vital Brasil Filho, 64, Niterói, RJ CEP 24230-340, Brazil.
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Brochado C, Duran BJ, Kieffer JD, Pinczak A, Menchaca A, Garcia-Guerra A. Reduced embryo yield obtained from superstimulated ewes with low circulating AMH concentration is improved by lengthening the FSH treatment. Theriogenology 2024; 218:79-88. [PMID: 38301510 DOI: 10.1016/j.theriogenology.2024.01.024] [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: 09/20/2023] [Revised: 01/17/2024] [Accepted: 01/23/2024] [Indexed: 02/03/2024]
Abstract
The aim of the present study was to evaluate: 1) the association between AMH, AFC, superovulatory response and embryo yield in sheep; and 2) the effect of FSH treatment length during superstimulation of the first follicular wave on ovarian response and embryo yield, particularly in ewes with low and high AMH. The experiment was performed on 63 Polled Dorset ewes that received an ovarian superstimulatory treatment during the first follicular wave (Day 0 protocol). Ewes were administered a total dose of 240 mg of FSH distributed in six (6-dose regimen, n = 30) or eight (8-dose regimen, n = 33) decreasing doses administered 12 h apart. On Day -9 (random stage of the estrous cycle) and Day 0 (day of the first FSH dose) ovarian ultrasonography was performed and blood samples were collected for AFC and AMH determinations, respectively. A weak positive correlation between AMH and small AFC (follicles <4 mm) was observed (r = 0.23; P = 0.07), and AMH concentration was positively correlated (r = 0.29; P < 0.05) with the number of corpora lutea (CL) determined at embryo collection (i.e., 6 d after insemination). The length of FSH treatment tended (P = 0.06) to affect the ovarian response, such that the number of CL was greater in 8-dose than 6-dose treated ewes, while no differences (P > 0.10) in embryo yield outcomes were observed. For further analysis, ewes were classified into low (<7 ng/mL) and high (>10 ng/mL) serum AMH. In high AMH ewes, there were no differences (P > 0.05) in the number of CL nor embryo yield between the 6-dose and 8-dose treatment (e.g., 7.8 ± 2.4 and 8.3 ± 2.5 transferable embryos, respectively; P = 0.92). Conversely, for low AMH ewes, fertilized ova and embryo yield were greater (P ≤ 0.05) for ewes receiving the 8-dose than the 6-dose superstimulatory treatment (e.g., 8.4 ± 2.8 vs. 2.7 ± 0.9 transferable embryos, respectively, P ≤ 0.05). In conclusion, embryo production in poor responding ewes with low low circulating AMH is improved by extending the superstimulatory treatment length from 6 to 8 FSH doses.
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Affiliation(s)
| | - B J Duran
- Department of Animal Sciences, The Ohio State University, Columbus, OH, USA
| | - J D Kieffer
- Department of Animal Sciences, The Ohio State University, Columbus, OH, USA
| | - A Pinczak
- Fundación IRAUy, Montevideo, Uruguay
| | - A Menchaca
- Fundación IRAUy, Montevideo, Uruguay; Plataforma de Investigación en Salud Animal, Instituto Nacional de Investigación Agropecuaria (INIA), Montevideo, Uruguay.
| | - A Garcia-Guerra
- Department of Animal Sciences, The Ohio State University, Columbus, OH, USA.
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Khan S, Jamal MA, Khan IM, Ullah I, Jabbar A, Khan NM, Liu Y. Factors affecting superovulation induction in goats ( Capra hericus): An analysis of various approaches. Front Vet Sci 2023; 10:1152103. [PMID: 37035816 PMCID: PMC10079885 DOI: 10.3389/fvets.2023.1152103] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2023] [Accepted: 02/24/2023] [Indexed: 04/11/2023] Open
Abstract
Goats are generally called a "poor man's cow" because they not only provide meat and milk but also other assistance to their owners, including skins for leather production and their waste, which can be used as compost for fertilizer. Multiple ovulation and embryo transfer (MOET) is an important process in embryo biotechnology, as it increases the contribution of superior female goats to breeding operations. The field of assisted reproductive biotechnologies has seen notable progress. However, unlike in cattle, the standard use of superovulation and other reproductive biotechnologies has not been widely implemented for goats. Multiple intrinsic and extrinsic factors can alter the superovulatory response, significantly restricting the practicability of MOET technology. The use of techniques to induce superovulation is a crucial step in embryo transfer (ET), as it accelerates the propagation of animals with superior genetics for desirable traits. Furthermore, the conventional superovulation techniques based on numerous injections are not appropriate for animals and are labor-intensive as well as expensive. Different approaches and alternatives have been applied to obtain the maximum ovarian response, including immunization against inhibin and the day-0 protocol for the synchronization of the first follicular wave. While there are several studies available in the literature on superovulation in cattle, research on simplified superovulation in goats is limited; only a few studies have been conducted on this topic. This review describes the various treatments with gonadotropin that are used for inducing superovulation in various dairy goat breeds worldwide. The outcomes of these treatments, in terms of ovulation rate and recovery of transferrable embryos, are also discussed. Furthermore, this review also covers the recovery of oocytes through repeated superovulation from the same female goat that is used for somatic cell nuclear transfer (SCNT).
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Affiliation(s)
- Samiullah Khan
- Anhui Province Key Laboratory of Embryo Development and Reproduction Regulation, Anhui Province Key Laboratory of Environmental Hormone and Reproduction, School of Biological and Food Engineering, Fuyang Normal University, Fuyang, China
- The Scientific Observing and Experimental Station of Crop Pest in Guiyang, Ministry of Agriculture, Institute of Entomology, Guizhou University, Guiyang, China
| | | | - Ibrar Muhammad Khan
- Anhui Province Key Laboratory of Embryo Development and Reproduction Regulation, Anhui Province Key Laboratory of Environmental Hormone and Reproduction, School of Biological and Food Engineering, Fuyang Normal University, Fuyang, China
| | - Irfan Ullah
- College of Biotechnology, Jiangsu University of Science and Technology, Zhenjiang, Jiangsu, China
| | - Abdul Jabbar
- Faculty of Veterinary and Animal Sciences, University of Poonch, Rawalakot, Pakistan
| | - Nazir Muhammad Khan
- Department of Zoology, University of Science and Technology, Bannu, Pakistan
| | - Yong Liu
- Anhui Province Key Laboratory of Embryo Development and Reproduction Regulation, Anhui Province Key Laboratory of Environmental Hormone and Reproduction, School of Biological and Food Engineering, Fuyang Normal University, Fuyang, China
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Carranza-Martin AC, Garcia-Guerra A, Relling AE. Effects of polyunsaturated fatty acid supplementation on plasma and follicular fluid resolvin D1 concentration and mRNA abundance in granulosa cells in ewes. J Anim Sci 2023; 101:skad310. [PMID: 37721095 PMCID: PMC10583979 DOI: 10.1093/jas/skad310] [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: 07/12/2023] [Accepted: 09/14/2023] [Indexed: 09/19/2023] Open
Abstract
The aim of this experiment was to evaluate the effect of increasing dietary omega-3 (n-3) polyunsaturated fatty acid (PUFA) supplementation on plasma and follicular fluid resolvin D1 (RvD1) concentration and the mRNA expression of genes related to RvD1 production, inflammatory response, oxidative stress, hormone receptors and production, and free fatty acid receptors in the granulosa cells of ewes. Dorset × Hampshire ewes (n = 24) aged 2 to 4 yr and with an initial body weight (BW) of 84.08 ± 13.18 kg were blocked by body condition score (BCS) and BW, and randomly assigned to 12 pens. Each pen within each block was randomly assigned to one of three treatments: 1) diet without fatty acid supplementation (control), 2) diet with 0.5% n-3 PUFA supplementation (PUFA0.5), and 3) diet with 1% n-3 PUFA supplementation (PUFA1). BW, BCS, and blood samples were obtained on day 1 and every 21 d for 3 mo. Ewes were then synchronized, superstimulated, and ovariectomized. Antral follicles were aspirated to evaluate RvD1 concentration in follicular fluid, and granulosa cells were used to determine mRNA abundance. Data were analyzed as a randomized complete block design using a mixed model (MIXED or GLIMMIX with log as a link function when data presented a nonnormal distribution). A polynomial effect of treatments was used to analyze RvD1 concentration and mRNA expression when there was no interaction. In addition, the correlation between plasma and follicular fluid RvD1 concentration was evaluated. We found no differences in BW (P = 0.28) and BCS (P = 0.29) between treatments. The concentration of RvD1 in plasma and follicular fluid linearly increased (P = 0.03) and tended to increase (P = 0.06) concomitantly to increasing PUFA supplementation. Plasma and follicular fluid RvD1 concentrations were positively correlated (r = 0.61; P < 0.01). The abundance of GPX1 and GPR32 mRNA tended to increase linearly with increasing PUFA supplementation (P = 0.06). In addition, PUFA supplementation linearly decreased and tended to decrease IL-1β and COX-2 mRNA abundance (P = 0.01 and P = 0.06, respectively). In conclusion, the correlation between plasma and follicular fluid RvD1 concentration indicates a relationship between both compartments. Also, the decrease of IL-1β and the increase of GPX1 mRNA abundance after PUFA supplementation could have beneficial effects on follicle development.
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Affiliation(s)
- Ana C Carranza-Martin
- Department of Animal Sciences, The Ohio State University, Columbus, OH 44691, USA
- IGEVET – Instituto de Genética Veterinaria “Ing. Fernando N. Dulout” (UNLP-CONICET LA PLATA), Facultad de Ciencias Veterinarias, Universidad Nacional de La Plata, CP 1900 La Plata, Buenos Aires, Argentina
| | - Alvaro Garcia-Guerra
- Department of Animal Sciences, The Ohio State University, Columbus, OH 44691, USA
| | - Alejandro E Relling
- Department of Animal Sciences, The Ohio State University, Columbus, OH 44691, USA
- Ohio State University Interdisciplinary Nutrition Program (OSUN), The Ohio State University, Columbus, OH 44691, USA
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Dias JH, Vergani GB, Gonçalves JD, Oliveira TA, Penitente-Filho JM, Pereira VSA, Esteves SN, Garcia AR, Batista RITP, Oliveira MEF, Souza-Fabjan JMG, Fonseca JF. Different doses of pFSH are effective to promote follicular growth, superovulatory response, and embryo yield in White Dorper ewes. Small Rumin Res 2023. [DOI: 10.1016/j.smallrumres.2023.106914] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
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Progestogen supplementation during superovulation leads to higher embryo viability and TGFB1 gene expression in sheep. Anim Reprod Sci 2022; 238:106938. [DOI: 10.1016/j.anireprosci.2022.106938] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2021] [Revised: 12/15/2021] [Accepted: 01/30/2022] [Indexed: 11/22/2022]
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Fonseca JF, Vergani GB, Lima MSD, Silva KM, Monteiro AWU, Ramos AF, Alves BRC, Souza-Fabjan JMG, Oliveira MEF, Batista RITP. Nonsurgical Embryo Recovery as a Feasible Tool for Supporting Embryo Biobanks of Locally Adapted Brazilian Sheep and Goats. Biopreserv Biobank 2021; 20:493-501. [PMID: 34747654 DOI: 10.1089/bio.2021.0066] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
This study assessed the outcomes of nonsurgical embryo recovery (NSER) after superovulation (SOV) in five locally adapted Brazilian breeds of sheep and goats. The objective was to evaluate the feasibility and efficiency of using SOV combined with a less-invasive embryo collection technique for supplying the Brazilian animal gene bank with germplasm from specific genotypes of interest. Morada Nova (n = 20), Santa Inês (n = 20), and Somalis (n = 20) ewes received an intravaginal progesterone (330 mg) device for 9 days, while Canindé (n = 15) and Moxotó (n = 15) goats received an intravaginal medroxyprogesterone acetate (60 mg) device for 6 days. All females received 133 mg of porcine follicle-stimulating hormone (pFSH) administrated in six decreasing doses 12 hours apart, starting 60 hours before device removal, plus 37.5 μg of d-cloprostenol at the fifth and sixth pFSH dose. Donors in estrus were mated with fertile males. The corpora lutea (CL) number was assessed by ultrasonography 1 day before NSER. On day 6.5 or 7 after estrus, NSER was performed following hormonally induced cervical relaxation. A total of 97% of sheep and 90% of goats responded with estrus, and among those, 91% of sheep and 85% of goats presented a CL. In ewes, the numbers of CL were greater (p < 0.05) in the Santa Inês breed, while similar (p > 0.05) CL numbers were found among the goat breeds. All viable embryos were freezable (excellent and good quality) and the number per donor was 7.8 for sheep and 4.9 for goats. All parameters of NSER efficiency, embryo yield, and fertility post-NSER did not differ (p > 0.05) between breeds among each species. The SOV-NSER procedures applied for an embryo biobank supply of locally adapted Brazilian breeds of small ruminants were efficient regarding production of cryopreservable embryos, and preservation of donor fertility. Therefore, SOV followed by NSER is recommended for embryo biobank assembly in sheep and goats.
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Affiliation(s)
| | - Gabriel B Vergani
- Faculdade de Ciências Agrárias e Veterinárias, Universidade Estadual Paulista, Jaboticabal, Brazil
| | - Monalisa S D Lima
- Faculdade de Veterináris, Universidade Estadual do Ceará, Fortaleza, Brazil
| | | | | | | | - Bruna R C Alves
- Faculdade de Veterinária, Universidade Federal Fluminense, Niterói, Brazil
| | | | - Maria E F Oliveira
- Embrapa Caprinos e Ovinos, Sobral, Brazil.,Faculdade de Ciências Agrárias e Veterinárias, Universidade Estadual Paulista, Jaboticabal, Brazil
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Souza-Fabjan JMG, Batista RITP, Correia LFL, Paramio MT, Fonseca JF, Freitas VJF, Mermillod P. In vitro production of small ruminant embryos: latest improvements and further research. Reprod Fertil Dev 2021; 33:31-54. [PMID: 38769678 DOI: 10.1071/rd20206] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/22/2024] Open
Abstract
This review presents the latest advances in and main obstacles to the application of invitro embryo production (IVEP) systems in small ruminants. This biotechnology is an extremely important tool for genetic improvement for livestock and is essential for the establishment of other biotechnologies, such as cloning and transgenesis. At present, the IVEP market is almost non-existent for small ruminants, in contrast with the trends observed in cattle. This is probably related to the lower added value of small ruminants, lower commercial demand and fewer qualified professionals interested in this area. Moreover, there are fewer research groups working on small ruminant IVEP than those working with cattle and pigs. The heterogeneity of oocytes collected from growing follicles in live females or from ovaries collected from abattoirs remains a challenge for IVEP dissemination in goats and sheep. Of note, although the logistics of oocyte collection from live small ruminant females are more complex than in the bovine, in general the IVEP outcomes, in terms of blastocyst production, are similar. We anticipate that after appropriate training and repeatable results, the commercial demand for small ruminant invitro -produced embryos may increase.
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Affiliation(s)
- Joanna M G Souza-Fabjan
- Faculdade de Veterinária, Universidade Federal Fluminense, Rua Vital Brazil Filho, 64, Niterói-RJ, CEP 24230-340, Brazil; and Corresponding author
| | - Ribrio I T P Batista
- Faculdade de Veterinária, Universidade Federal Fluminense, Rua Vital Brazil Filho, 64, Niterói-RJ, CEP 24230-340, Brazil
| | - Lucas F L Correia
- Faculdade de Veterinária, Universidade Federal Fluminense, Rua Vital Brazil Filho, 64, Niterói-RJ, CEP 24230-340, Brazil
| | - Maria Teresa Paramio
- Departament de Ciencia Animal i dels Aliments, Facultat de Veterinaria, Universitat Autonoma de Barcelona, 08193 Cerdanyola del Valles, Barcelona, Spain
| | - Jeferson F Fonseca
- Embrapa Caprinos e Ovinos, Rodovia MG 133, km 42, Campo Experimental Coronel Pacheco, Coronel Pacheco-MG, CEP 36155-000, Brazil
| | - Vicente J F Freitas
- Laboratório de Fisiologia e Controle da Reprodução, Universidade Estadual do Ceará, Fortaleza-CE, CEP 60714-903, Brazil
| | - Pascal Mermillod
- Institut National de Recherche pour l'Agriculture, l'Alimentation et l'Environnement (INRAE), UMR7247, Physiologie de la Reproduction et des Comportements, Nouzilly, France
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Ovarian activity in dairy Saanen goats subjected to a short-term ovulation induction protocol and a single injection of lecirelin (GnRH analog) given 28 h or 34 h after progestin pre-treatment. Small Rumin Res 2020. [DOI: 10.1016/j.smallrumres.2020.106214] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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Año-Perello A, Santos-Jimenez Z, Encinas T, Martinez-Ros P, Gonzalez-Bulnes A. Use of GnRH for Synchronization of the Follicular Wave in Assisted Reproductive Technologies in Sheep: A Preliminary Study. Animals (Basel) 2020; 10:E1208. [PMID: 32708594 PMCID: PMC7401646 DOI: 10.3390/ani10071208] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2020] [Revised: 06/28/2020] [Accepted: 07/13/2020] [Indexed: 11/16/2022] Open
Abstract
The present study aimed to set up a short-term protocol for synchronization of follicular wave emergence in sheep, concomitant with estrus synchronization, which would improve ovarian response in assisted reproductive technologies. Administration of a single GnRH dose, concomitant with the insertion of a progesterone-loaded CIDR device, caused regression of gonadotrophin-dependent follicles ≥4 mm in all the GnRH-treated sheep and in around 80% of the controls treated only with CIDR (p < 0.05). Similar percentages of ewes lost all follicles (around 70%) or only the largest one (around 30%) in both groups. Hence, 54.1% and 70% of the sheep lost all large follicles and initiated a new follicular wave in the control and GnRH groups, respectively (p < 0.05). The remaining sheep showed follicles that were still not dependent of luteinizing hormone (LH). So, in fact, all the sheep had non-dominant follicles after treatment. In conclusion, a treatment including GnRH at CIDR insertion would offer a time- and cost-efficient protocol for inducing follicular turnover and synchronizing a new follicular wave at any stage of the estrous cycle.
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Affiliation(s)
- Aina Año-Perello
- Departamento de Produccion y Sanidad Animal, Facultad de Veterinaria, Universidad Cardenal Herrera-CEU, CEU Universities, C/ Tirant lo Blanc, 7. 46115 Alfara del Patriarca Valencia, Spain; (A.A.-P.); (A.G.-B.)
| | - Zurisaday Santos-Jimenez
- Departamento Ciencias Medico Veterinarias, Universidad Autónoma Agraria Antonio Narro, Torreón, 25315 Coahuila, Mexico;
- Departamento de Farmacologia y Toxicologia Facultad de Veterinaria, UCM, Ciudad Universitaria s/n, 28040 Madrid, Spain;
| | - Teresa Encinas
- Departamento de Farmacologia y Toxicologia Facultad de Veterinaria, UCM, Ciudad Universitaria s/n, 28040 Madrid, Spain;
| | - Paula Martinez-Ros
- Departamento de Produccion y Sanidad Animal, Facultad de Veterinaria, Universidad Cardenal Herrera-CEU, CEU Universities, C/ Tirant lo Blanc, 7. 46115 Alfara del Patriarca Valencia, Spain; (A.A.-P.); (A.G.-B.)
| | - Antonio Gonzalez-Bulnes
- Departamento de Produccion y Sanidad Animal, Facultad de Veterinaria, Universidad Cardenal Herrera-CEU, CEU Universities, C/ Tirant lo Blanc, 7. 46115 Alfara del Patriarca Valencia, Spain; (A.A.-P.); (A.G.-B.)
- Departamento de Farmacologia y Toxicologia Facultad de Veterinaria, UCM, Ciudad Universitaria s/n, 28040 Madrid, Spain;
- Departamento de Reproduccion Animal, Instituto Nacional de Investigación y Tecnología Agraria y Alimentaria (INIA), Avda. Puerta de Hierro s/n. 28040-Madrid, Spain
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Bragança GM, Souza-Fabjan JMG, Ribeiro LS, Brair VL, Côrtes LR, Souza CV, Batista RITP, Fonseca JF, Menchaca A, Brandão FZ. Exogenous progestogen does not affect first-wave follicle populations and oocyte quality during ovarian stimulation with FSH in sheep. Domest Anim Endocrinol 2020; 72:106369. [PMID: 31445776 DOI: 10.1016/j.domaniend.2019.06.001] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/23/2018] [Revised: 05/19/2019] [Accepted: 06/04/2019] [Indexed: 11/20/2022]
Abstract
The effect of short-term administration of medroxyprogesterone acetate (MPA) or natural progesterone (P4) during ovarian stimulation with FSH on oocyte recovery was investigated in Santa Inês ewes. Ewes were treated with an intravaginal sponge containing MPA for 6 d; GnRH was applied 36 h after sponge removal and FSH was given in 3 injections (40, 24, and 16 mg, respectively) every 12 h after (D0, approximate ovulation time). At the first FSH dose, the ewes received either a new MPA sponge (n = 10) or a controlled device for internal release impregnated with P4 (n = 10) or did not receive any device (n = 10). Ovarian dynamics were assessed every 12 h by transrectal ultrasonography from D-3 to D2. Oocytes were recovered by laparoscopic ovum pick-up (LOPU) on D2 and graded by morphologic quality. The number of small, medium, and large follicles at D0 and D2 (ultrasound examinations), number of both follicles aspirated and oocytes recovered at LOPU, recovery rate, and oocyte grade did not differ (P > 0.05) among treatments. Thus, the short-term use of MPA or P4 during ovarian stimulation did not affect the first-wave follicle population or morphologic quality of oocytes. We would suggest that, in this protocol, the use of exogenous progestin is unnecessary.
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Affiliation(s)
- G M Bragança
- Faculdade de Veterinária, Universidade Federal Fluminense, Rua Vital Brazil, 64, Niterói, Rio de Janeiro CEP 24320-340, Brazil.
| | - J M G Souza-Fabjan
- Faculdade de Veterinária, Universidade Federal Fluminense, Rua Vital Brazil, 64, Niterói, Rio de Janeiro CEP 24320-340, Brazil
| | - L S Ribeiro
- Faculdade de Veterinária, Universidade Federal Fluminense, Rua Vital Brazil, 64, Niterói, Rio de Janeiro CEP 24320-340, Brazil
| | - V L Brair
- Faculdade de Veterinária, Universidade Federal Fluminense, Rua Vital Brazil, 64, Niterói, Rio de Janeiro CEP 24320-340, Brazil
| | - L R Côrtes
- Faculdade de Veterinária, Universidade Federal Fluminense, Rua Vital Brazil, 64, Niterói, Rio de Janeiro CEP 24320-340, Brazil
| | - C V Souza
- Faculdade de Veterinária, Universidade Federal Fluminense, Rua Vital Brazil, 64, Niterói, Rio de Janeiro CEP 24320-340, Brazil
| | - R I T P Batista
- Faculdade de Veterinária, Universidade Federal Fluminense, Rua Vital Brazil, 64, Niterói, Rio de Janeiro CEP 24320-340, Brazil
| | - J F Fonseca
- Embrapa Caprinos e Ovinos, Estrada Sobral/Groaíras, km 04, CP 145, Sobral, Ceará CEP 62010-970, Brazil
| | - A Menchaca
- Fundacion IRAUy, Cno. Cruz del Sur, 2250 CP, Montevideo 12200, Uruguay
| | - F Z Brandão
- Faculdade de Veterinária, Universidade Federal Fluminense, Rua Vital Brazil, 64, Niterói, Rio de Janeiro CEP 24320-340, Brazil
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Figueira LM, Alves NG, Maia ALRES, Souza-Fabjan JMGD, Batista RITP, Morais MCDC, Lima RRD, Oliveira MEF, Fonseca JFD. Embryo yield and quality are associated with progestogen treatment during superovulation protocol in lactating Lacaune ewes. Theriogenology 2020; 155:132-138. [PMID: 32673848 DOI: 10.1016/j.theriogenology.2020.06.004] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2020] [Revised: 06/06/2020] [Accepted: 06/07/2020] [Indexed: 10/24/2022]
Abstract
This study assessed the effect of progestogen treatment length on ovarian parameters and embryo yield in superovulated Lacaune ewes collected by nonsurgical embryo recovery. Twenty-three lactating ewes were superovulated 30 d apart using a cross-over design. All ewes received 60 mg of MAP intravaginal sponges for 6 (G-6 group) or 9 (G-9 group) d. A total dose of 133 mg pFSH was given in six decreasing doses (twice a day) starting at 60 h before device removal. Ultrasound examination of the ovaries was performed at the first pFSH injection and one day before embryo recovery, which was performed 6-7 d after the onset of estrus. Embryo recovery was conducted only in ewes that expressed estrus and were mated. There was no difference (P > 0.05) in the total number of follicles between G-6 (15.7 ± 1.0) and G-9 (15.6 ± 0.8) at the time of the first pFSH treatment. The percentage of responding donors with ≥3 corpora lutea (CL; 78.2% [18/23] vs 69.5% [16/23]), mean (±SEM) CL number (7.0 ± 1.2 vs 8.1 ± 1.6), transcervical passage rate (94.4% [17/18] vs 83.3% [15/18], and ova/embryo recovery rate (54.5% [60/110] vs 68.0% [83/122]) were not different (P > 0.05) between the G-6 and G-9 groups. However, the mean number of viable embryos was lower (P < 0.05) in the G-6 group (1.8 ± 0.7) than in the G-9 group. (3.5 ± 1.1). In conclusion, treatment with an intravaginal MAP sponge for 9 d during a superovulation protocol is beneficial for viable embryo yield in Lacaune ewes out of the breeding season.
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Affiliation(s)
- Lucas Machado Figueira
- Universidade Federal de Lavras - Av. Doutor Sylvio Menicucci, 1001 - Kennedy, CEP 37200-900, Lavras, MG, Brazil; Universidade Federal Fluminense, Rua Vital Brazil Filho, 64, Vital Brazil, CEP 24220-000, Niterói, RJ, Brazil
| | - Nadja Gomes Alves
- Universidade Federal de Lavras - Av. Doutor Sylvio Menicucci, 1001 - Kennedy, CEP 37200-900, Lavras, MG, Brazil.
| | - Ana Lucia Rosa E Silva Maia
- Universidade Federal Fluminense, Rua Vital Brazil Filho, 64, Vital Brazil, CEP 24220-000, Niterói, RJ, Brazil
| | | | | | - Maria Clara da Cruz Morais
- Universidade Federal Fluminense, Rua Vital Brazil Filho, 64, Vital Brazil, CEP 24220-000, Niterói, RJ, Brazil
| | - Renato Ribeiro de Lima
- Universidade Federal de Lavras - Av. Doutor Sylvio Menicucci, 1001 - Kennedy, CEP 37200-900, Lavras, MG, Brazil
| | - Maria Emilia Franco Oliveira
- Universidade Estadual Paulista "Júlio de Mesquita Filho, Via Prof. Paulo Donato Castellane s/n, CEP 14884-900, Jaboticabal, SP, Brazil
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Magalhães LC, Lopes Júnior ES, Leite Guimarães ADS, Miranda MDS, Souza TTDS, do Monte APO, Silva AADA, Sampaio LS, Nascimento TVC, Felix de Sousa PH, l Maia Nogueira D, Cordeiro MF. Comparison between Day 0 and traditional protocols for estrus synchronization and multiple ovulation in crossbred hair sheep. JOURNAL OF APPLIED ANIMAL RESEARCH 2019. [DOI: 10.1080/09712119.2019.1687307] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Affiliation(s)
- Livia Correia Magalhães
- Laboratory of Physiology and Reproduction Control, State University of Ceará, Fortaleza, Brasil
| | - Edilson Soares Lopes Júnior
- Laboratory of Physiology and Biotechnology of Animal Reproduction, Federal University of São Francisco Valley, Petrolina, Brazil
| | - Aionne de Souza Leite Guimarães
- Laboratory of Physiology and Biotechnology of Animal Reproduction, Federal University of São Francisco Valley, Petrolina, Brazil
| | | | - Thais Thatiane dos Santos Souza
- Laboratory of Physiology and Biotechnology of Animal Reproduction, Federal University of São Francisco Valley, Petrolina, Brazil
| | - Alane Pains Oliveira do Monte
- Laboratory of Physiology and Biotechnology of Animal Reproduction, Federal University of São Francisco Valley, Petrolina, Brazil
| | - Ana Arlete de Amorim Silva
- Laboratory of Physiology and Biotechnology of Animal Reproduction, Federal University of São Francisco Valley, Petrolina, Brazil
| | - Ludmila Souza Sampaio
- Laboratory of Physiology and Biotechnology of Animal Reproduction, Federal University of São Francisco Valley, Petrolina, Brazil
| | | | - Pedro Humberto Felix de Sousa
- Faculty of Agricultural Engineering, Department of Technology and Social Sciences, State University of Bahia, Juazeiro, Brazil
| | - Danie l Maia Nogueira
- Animal Production and Reproduction Sector, Brazilian Agricultural Research Corporation, Embrapa Tropical Semiarid, Petrolina, Brazil
| | - Mabel Freitas Cordeiro
- Laboratory of Physiology and Biotechnology of Animal Reproduction, Federal University of São Francisco Valley, Petrolina, Brazil
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Cuadro F, dos Santos-Neto P, Pinczak A, Barrera N, Crispo M, Menchaca A. Serum progesterone concentrations during FSH superstimulation of the first follicular wave affect embryo production in sheep. Anim Reprod Sci 2018; 196:205-210. [DOI: 10.1016/j.anireprosci.2018.08.011] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2018] [Revised: 07/23/2018] [Accepted: 08/08/2018] [Indexed: 11/29/2022]
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Menchaca A, Cuadro F, Dos Santos-Neto PC, Bosolasco D, Barrera N, de Brun V, Crispo M. Oocyte developmental competence is improved by relatively greater circulating progesterone concentrations during preovulatory follicular growth. Anim Reprod Sci 2018; 195:321-328. [PMID: 31262405 DOI: 10.1016/j.anireprosci.2018.06.010] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2018] [Revised: 05/31/2018] [Accepted: 06/21/2018] [Indexed: 01/28/2023]
Abstract
This study evaluated the effect of progesterone priming during follicular growth on oocyte competence to undergo oocyte cleavage and embryo development in sheep. Two experiments were performed on a total of 195 females that either received or did not receive a progesterone treatment (CIDR-type device) during the first follicular wave, beginning soon after ovulation (i.e., Day 0 of the experiment). On Day 3, the follicular population and oocyte quality (Experiment 1 and 2) and the competence of oocytes for cleavage and embryo development (Experiment 2) were evaluated after laparoscopic ovum pickup (LOPU) and in vitro fertilization. In Experiment 1, in a 2 × 2 factorial study the progesterone priming treatment (treated or not) was or was not associated with a single dose of FSH in a slow-release hyaluronic acid preparation given on Day 0. The follicular population on Day 3 and the number and morphology of recovered cumulus oocyte complexes (COCs) were not affected by the progesterone treatment (P = NS) but were improved by the FSH administration (P < 0.05). An interaction between both treatments was observed (P < 0.05), with more desirable outcome with the females that received both the progesterone and the FSH treatments. In Experiment 2, half of the females received the exogenous progesterone priming, and all females received FSH on Day 0. After follicular aspiration on Day 3, the cleavage rate and the embryo development rate following in vitro fertilization and culture were greater in those females that received the progesterone treatment (P < 0.05). In conclusion, these studies provide evidence that progesterone treatment during follicular growth affects oocyte competence, with the greater progesterone concentrations enhancing the oocyte's capacity to undergo cleavage and embryo development.
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Affiliation(s)
- A Menchaca
- Instituto de Reproducción Animal Uruguay, Fundacion IRAUy, Cruz del Sur 2250, Montevideo, Uruguay.
| | - F Cuadro
- Instituto de Reproducción Animal Uruguay, Fundacion IRAUy, Cruz del Sur 2250, Montevideo, Uruguay
| | - P C Dos Santos-Neto
- Instituto de Reproducción Animal Uruguay, Fundacion IRAUy, Cruz del Sur 2250, Montevideo, Uruguay
| | - D Bosolasco
- Instituto de Reproducción Animal Uruguay, Fundacion IRAUy, Cruz del Sur 2250, Montevideo, Uruguay
| | - N Barrera
- Instituto de Reproducción Animal Uruguay, Fundacion IRAUy, Cruz del Sur 2250, Montevideo, Uruguay
| | - V de Brun
- Laboratorio de Técnicas Nucleares, Facultad de Veterinaria, Universidad de la República, Av. Lasplaces, 1550, Montevideo, Uruguay
| | - M Crispo
- Unidad de Animales Transgénicos y de Experimentación, Institut Pasteur de Montevideo, Mataojo, 2020, Montevideo, Uruguay
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Oliveira M, Ayres H, Oliveira L, Oba E, Kridli R, Bartlewski P, Fonseca J, Bicudo S, Vicente W. Follicular wave emergence in Santa Inês ewes subjected to long-term, progesterone-based estrous synchronization protocols at different times of the year. Anim Reprod Sci 2016; 174:80-86. [DOI: 10.1016/j.anireprosci.2016.09.008] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2016] [Revised: 09/06/2016] [Accepted: 09/08/2016] [Indexed: 10/21/2022]
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Balaro M, Brandão FZ, Maia A, Souza-Fabjan J, Cueto MI, Gibbons AE, Fonseca JF. Pre-Selection Test to Identify High Responder Donor Goats. Reprod Domest Anim 2016; 51:386-91. [PMID: 27037619 DOI: 10.1111/rda.12690] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2016] [Accepted: 03/03/2016] [Indexed: 11/27/2022]
Abstract
The aim of the study was to evaluate the feasibility of pre-selection of high or low responder does prior to the superovulatory protocols. Twenty Saanen does received 800 IU of equine chorionic gonadotropin (eCG) at the end of long-term progestogen treatment. Fourteen days later, a second progestogen protocol associated with a multiple-dose follicle stimulation hormone (FSH) treatment (5 IU/kg of FSH, in six decreasing doses between days 4 to 6 of the protocol) was administered. Transrectal ultrasound was used to assess the follicular status at the beginning of superovulatory treatments, at the oestrous onset and on the seventh day of the oestrous cycle for counting corpora lutea (CL). A significant lower number of CL was obtained in eCG-treated in comparision with FSH-treated does (p < 0.05). A quartic regression was able to explain the relationship between the number of CL in response to both treatments (r(2) =0.50; p < 0.05). Seventy per cent (14 of 20) of does maintained the same ovulatory response (high or low) after treatments. The Kappa (κ = 0.40; p < 0.05) and Spearman (rs = 0.39; p = 0.08) coefficients were able to show a relationship between treatments. Regarding the follicular status, there is a significant relationship between the number of small follicles (r = 0.71; r(2) =0.47; p < 0.01) and total follicles (r = 0.60; p < 0.01) at eCG and first FSH dose with the number of CL. Moreover, it was found a negative relationship between the presence of large follicles and the number of CL in response to eCG treatment (r = -0.44; p < 0.05), but not from FSH (p > 0.05). In conclusion, the screening test with eCG has the potential to identify Saanen does that will better respond to the superovulatory protocol with FSH. In addition, it highlighted the importance of an ultrasound evaluation prior to the beginning of superovulatory treatments with FSH to characterize the follicular status and identify the potential donors of high ovulatory response in MOET programmes in goats.
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Affiliation(s)
- Mfa Balaro
- Departamento de Patologia e Clínica Veterinária, Faculdade de Veterinária, Universidade Federal Fluminense, Niterói, RJ, Brazil
| | - F Z Brandão
- Departamento de Patologia e Clínica Veterinária, Faculdade de Veterinária, Universidade Federal Fluminense, Niterói, RJ, Brazil
| | - Alrs Maia
- Departamento de Patologia e Clínica Veterinária, Faculdade de Veterinária, Universidade Federal Fluminense, Niterói, RJ, Brazil
| | - Jmg Souza-Fabjan
- Departamento de Patologia e Clínica Veterinária, Faculdade de Veterinária, Universidade Federal Fluminense, Niterói, RJ, Brazil
| | - M I Cueto
- Instituto Nacional de Tecnologia Agropecuaria, Bariloche, Argentina
| | - A E Gibbons
- Instituto Nacional de Tecnologia Agropecuaria, Bariloche, Argentina
| | - J F Fonseca
- Embrapa Goats and Sheep, Coronel Pacheco, MG, Brazil
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Balaro MFA, Fonseca JF, Barbosa TGB, Souza-Fabjan JMG, Figueira LM, Teixeira TA, Carvalheira LR, Brandão FZ. Potential role for GnRH in the synchronization of follicular emergence before the superovulatory Day 0 protocol. Domest Anim Endocrinol 2016; 54:10-4. [PMID: 26343000 DOI: 10.1016/j.domaniend.2015.07.002] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/06/2015] [Revised: 07/08/2015] [Accepted: 07/16/2015] [Indexed: 11/22/2022]
Abstract
The ability of gonadotropin-releasing hormone (GnRH) to synchronize ovulation and new follicular wave emergence before a "superovulatory Day 0" protocol was assessed in Santa Inês ewes. For estrus synchronization, a 60-mg medroxyprogesterone acetate sponge was inserted for 6 d. One day before sponge removal, 37.5-μg d-cloprostenol and 300 IU equine chorionic gonadotropin were injected intramuscularly (i.m.). After sponge removal, ewes were assigned to the following 3 groups: (1) GC-1 mL saline at 12 h (n = 10); (2) G24h-0.025-mg lecirelin (GnRH agonist) i.m. at 24 h (n = 10); or (3) G36h-0.025-mg lecirelin i.m. at 36 h (n = 9). Ovarian ultrasonography was conducted to assess follicular dynamics. Blood was collected to determine plasma concentrations of progesterone and estradiol. Females from G36h and GC had a greater (P < 0.05) estrous response than those from the G24h group (78.0 and 90.0 vs 0.0%, respectively). Ewes from G24h and G36h had earlier (P < 0.05) ovulation (48.0 ± 10.2 and 56.7 ± 5.7 h) compared with those from Gc (64.1 ± 9.7 h). The mean number of ovulations per ewe was greater (P < 0.05) in Gc (1.9 ± 0.6) and G36h (2.0 ± 1.0) than G24h (1.2 ± 0.4). Plasma concentrations of progesterone and estradiol differed over time. Follicular growth during the postovulatory day was affected (P < 0.05) by day of the estrus cycle as well as by the interaction (P < 0.05) of treatment and day of the estrus cycle. There was a larger (P < 0.05) population of medium follicles during the first 24 h after the ovulation in G24h compared with Gc, and there was an absence of large follicles in G36h between 36 and 72 h after ovulation. In conclusion, the use of GnRH agonist at 36 h more efficiently synchronized ovulation and promoted the absence of dominant follicles during early diestrus and may be used at the start of superovulatory treatment at 80 h in Santa Inês ewes.
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Affiliation(s)
- M F A Balaro
- Department of Pathology and Veterinary Clinic, Veterinary School, Fluminense Federal University, Niteroi, RJ 24320-340, Brazil.
| | - J F Fonseca
- Brazilian Agricultural Research Corporation on Goats and Sheep, Coronel Pacheco, MG 36155-000, Brazil
| | - T G B Barbosa
- Department of Pathology and Veterinary Clinic, Veterinary School, Fluminense Federal University, Niteroi, RJ 24320-340, Brazil
| | - J M G Souza-Fabjan
- Department of Pathology and Veterinary Clinic, Veterinary School, Fluminense Federal University, Niteroi, RJ 24320-340, Brazil
| | - L M Figueira
- Department of Animal Science, Veterinary School, Fluminense Federal University, Niteroi, RJ 24320-340, Brazil
| | - T A Teixeira
- Department of Pathology and Veterinary Clinic, Veterinary School, Fluminense Federal University, Niteroi, RJ 24320-340, Brazil
| | - L R Carvalheira
- Department of Pathology and Veterinary Clinic, Veterinary School, Fluminense Federal University, Niteroi, RJ 24320-340, Brazil
| | - F Z Brandão
- Department of Pathology and Veterinary Clinic, Veterinary School, Fluminense Federal University, Niteroi, RJ 24320-340, Brazil
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Lima JTM, Fonseca JF, Balaro MFA, Esteves LV, Ascoli FO, Leite CR, Ribeiro ACS, Delgado KF, Souza-Fabjan JMG, Filho RAT, Brandão FZ. Effect of natural mating or laparoscopic artificial insemination in superovulated Santa Inês ewes on superovulatory response, fertility and embryo viability. ANIMAL PRODUCTION SCIENCE 2016. [DOI: 10.1071/an14827] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
This study evaluated the effect of two mating methods (GNM: natural mating or GAI: laparoscopic artificial insemination) on superovulatory response, fertility and embryo yield in superovulated ewes. Fifteen non-pregnant Santa Inês ewes were superovulated and either mated by GNM or GAI in a crossover design. Oestrus was synchronised using intravaginal progestagen sponges for 6 days and on Day 5, 300 IU eCG and 0.0375 mg d-cloprostenol were given. Twelve hours after sponge removal, 0.025 mg gonadotropin-releasing hormone was administered. Superovulation started 48 h after gonadotropin-releasing hormone treatment, using 5 IU/kg follicle-stimulating hormone (pFSH). At the first pFSH dose, new sponges were inserted. At the fifth dose, 0.0375 mg cloprostenol was administered and the sponges were removed. The GNM was mated with rams every 12 h, until the end of oestrus. The ewes of GAI were laparoscopic inseminated with frozen–thawed semen 36 and 48 h after sponge removal. Ultrasonography was performed every 24 h from the beginning of oestrus synchronisation treatment and every 12 h from the second sponge removal to 2 days after the last pFSH dose. Six to seven days after mating, the number of corpora lutea (CL) was evaluated by laparoscopy and the females with > 4 CL were subjected to embryo collection. The interval from sponge removal to ovulation was shorter (P < 0.05) in the GNM. The overall superovulatory response was 63.3% (19/30), with 60.0% and 66.7% in GNM and GAI, respectively (P > 0.05). The number of recovered structures (6.4 ± 2.4 vs 4.5 ± 3.0), recovery rate (74.0 ± 16.0 vs 52.3 ± 26.5%), number of transferable embryos (3.0 ± 2.9 vs 3.6 ± 2.0) and viability rate (47.2 ± 45.3 vs 77.4 ± 37.1%) did not differ between GAI and GNM (P > 0.05). However, the GAI group showed a higher (P < 0.05) number of unfertilised oocytes (3.1 ± 3.1) and a higher non-fertilisation rate (47.1 ± 45.3%) than the GNM (0.9 ± 2.1 and 11.5 ± 21.5%). The mating method did not affect the superovulatory response, and production of viable embryos although the non-fertilisation rate has been inferior for the AI group.
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Rahman MR, Rahman MM, Wan Khadijah WE, Abdullah RB. Follicle Stimulating Hormone (FSH) Dosage Based on Body Weight Enhances Ovulatory Responses and Subsequent Embryo Production in Goats. ASIAN-AUSTRALASIAN JOURNAL OF ANIMAL SCIENCES 2014; 27:1270-4. [PMID: 25178370 PMCID: PMC4150193 DOI: 10.5713/ajas.2013.13786] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/03/2013] [Revised: 02/16/2014] [Accepted: 04/14/2014] [Indexed: 11/27/2022]
Abstract
An experiment was conducted to evaluate the efficacy of porcine follicle stimulating hormone (pFSH) dosage based on body weight (BW) on ovarian responses of crossbred does. Thirty donor does were divided into 3 groups getting pFSH dosages of 3, 5, and 8 mg pFSH per kg BW, respectively, and were named as pFSH-3, pFSH-5 and pFSH-8, respectively. Estrus was synchronized by inserting a controlled internal drug release (CIDR) device and a single injection of prostaglandin F2α (PGF2α). The pFSH treatments were administered twice a day through 6 decreasing dosages (25, 25, 15, 15, 10, and 10% of total pFSH amount; decreasing daily). Ovarian responses were evaluated on Day 7 after CIDR removal. After CIDR removal, estrus was observed 3 times in a day and pFSH treatments were initiated at 2 days before the CIDR removal. All does in pFSH-5 and pFSH-8 showed estrus signs while half of the does in pFSH-3 showed estrus signs. No differences (p>0.05) were observed on the corpus luteum and total ovarian stimulation among the treatment groups, while total and transferable embryos were higher (p<0.05) in pFSH-5 (7.00 and 6.71) than pFSH-3 (3.00 and 2.80) and pFSH-8 (2.00 and 1.50), respectively. In conclusion, 5 mg pFSH per kg BW dosage gave a higher number of embryos than 3 and 8 mg pFSH per kg BW dosages. The results indicated that the dosage of pFSH based on BW is an important consideration for superovulation in goats.
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Affiliation(s)
- M R Rahman
- Animal Biotechnology-Embryo Laboratory (ABEL), Institute of Biological Sciences, Faculty of Science, University of Malaya, 50603 Kuala Lumpur, Malaysia ; School of Agriculture and Rural Development, Bangladesh Open University, 1705 Gazipur, Bangladesh
| | - M M Rahman
- Animal Biotechnology-Embryo Laboratory (ABEL), Institute of Biological Sciences, Faculty of Science, University of Malaya, 50603 Kuala Lumpur, Malaysia
| | - W E Wan Khadijah
- Animal Biotechnology-Embryo Laboratory (ABEL), Institute of Biological Sciences, Faculty of Science, University of Malaya, 50603 Kuala Lumpur, Malaysia
| | - R B Abdullah
- Animal Biotechnology-Embryo Laboratory (ABEL), Institute of Biological Sciences, Faculty of Science, University of Malaya, 50603 Kuala Lumpur, Malaysia
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Amiridis GS, Cseh S. Assisted reproductive technologies in the reproductive management of small ruminants. Anim Reprod Sci 2012; 130:152-61. [PMID: 22381207 DOI: 10.1016/j.anireprosci.2012.01.009] [Citation(s) in RCA: 58] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
Abstract
In modern agriculture, assisted reproductive technologies are being used for out of season oestrus induction, enhancement of reproductive performance and genetic improvement. In addition, they can have substantial contribution in preservation of endangered species or breeds, as well as in eradication programs of various diseases. While their applications are widespread in cattle, in small ruminants it is almost restricted to artificial insemination. The main limitations of a wider application in small ruminants are the naturally occurring anoestrus period, the variability of response to superovulatory treatments, the fertilisation failure and the need of surgery for collection and transfer of gametes and embryos. Nonetheless, during the last 30 years, considerable progress has been made in sheep and goat embryo technologies, especially in the fields of oestrus synchronisation, superovulation and in vitro embryo production. This paper reviews the status of assisted reproductive technologies in sheep, analysing the prospects offered by recent advances in in vivo and in vitro embryo production from mature and juvenile lambs.
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Affiliation(s)
- G S Amiridis
- Department of Obstetrics and Reproduction, Veterinary Faculty, University of Thessaly, Karditsa, Greece.
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Mayorga I, Mara L, Sanna D, Stelletta C, Morgante M, Casu S, Dattena M. Good quality sheep embryos produced by superovulation treatment without the use of progesterone devices. Theriogenology 2011; 75:1661-8. [DOI: 10.1016/j.theriogenology.2010.12.029] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2010] [Revised: 12/14/2010] [Accepted: 12/31/2010] [Indexed: 11/26/2022]
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Taşdemir U, Ağaoğlu AR, Kaymaz M, Karakaş K. Ovarian response and embryo yield of Angora and Kilis goats given the day 0 protocol for superovulation in the non-breeding season. Trop Anim Health Prod 2011; 43:1035-8. [PMID: 21347831 DOI: 10.1007/s11250-011-9802-8] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 02/10/2011] [Indexed: 11/28/2022]
Abstract
The aim of this study was to compare ovarian response and embryo yield of Day 0 protocol in Angora goats (AG) and indigenous Kilis goats (KG) in the non-breeding season. A total of 16 Angora goats (AG group) and 11 Kilis goats (KG group) were used in this study. In the synchronization process, after controlled internal drug release withdrawal, when estrus signs were observed, natural mating was performed. Ovarian response was determined by synchronized laparotomy 6 days after natural mating, and number of corpora lutea (CL) was recorded. Embryos were collected and morphologically evaluated by stereomicroscope. Synchronization rates did not differ between AG (88%, 14/16) and KG group (91%, 10/11). In AG and KG groups, the proportion of CL on the right (44% and 53%, respectively) and left (56% and 47%, respectively) ovaries were similar. The CL number per animal did not differ significantly between the two breeds and was determined as 4.4 ± 0.90 in AG group and 6.4 ± 1.44 in KG group. Transferable embryo yields were significantly higher in AG group (31/42, 74%) compared to KG group (16/46, 35%) in the non-breeding season (P < 0.01). In conclusion, it is suggested that the day 0 protocol can be used for goat superovulation in the non-breeding season; however, transferable embryo yields are affected by the breed.
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Affiliation(s)
- Umut Taşdemir
- Ministry of Agriculture and Rural Affairs, Lalahan Livestock Central Research Institute, Ankara, Turkey.
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Quan F, Zhang Z, An Z, Hua S, Zhao X, Zhang Y. Multiple Factors Affecting Superovulation in Poll Dorset in China. Reprod Domest Anim 2011; 46:39-44. [DOI: 10.1111/j.1439-0531.2009.01551.x] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Menchaca A, Vilariño M, Crispo M, de Castro T, Rubianes E. New approaches to superovulation and embryo transfer in small ruminants. Reprod Fertil Dev 2010; 22:113-8. [DOI: 10.1071/rd09222] [Citation(s) in RCA: 54] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
The present paper reviews the current state of knowledge in multiple ovulation and embryo transfer (MOET) technology in small ruminants, focusing on recently reported information. Major new findings are related to follicular wave patterns in small ruminants, the elucidation of follicular dominance and the integration of this information into ovarian superstimulatory treatment protocols. Follicular dynamics determine steroid and gonadotrophin secretion, follicular responses to FSH, ovulatory responses and embryo yield. Protocols that control follicular dominance have been designed to allow the initiation of superstimulation at the beginning of a follicular wave. New approaches consist of (1) synchronisation of ovulation for superstimulation during Wave 1 (i.e. Day 0 protocol), (2) pretreatment with a gonadotrophin-releasing hormone (GnRH) antagonist from 10 days prior to FSH treatment to avoid follicular dominance and (3) progesterone–oestradiol cotreatment to synchronise follicle wave emergence. These protocols provide a homogeneous pool of small follicles that are gonadotrophin responsive, enhancing the superovulatory response and embryo yield with a reduction in the incidence of unovulated follicles and early regression of corpora lutea. In addition, the rate of fertilisation failure has been reduced by using an inducer of ovulation (i.e. GnRH) associated with intrauterine insemination. In summary, the application of recently acquired knowledge has resulted in relevant improvements in MOET programmes in small ruminants.
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Menchaca A, Vilariño M, Pinczak A, Kmaid S, Saldaña JM. Progesterone treatment, FSH plus eCG, GnRH administration, and Day 0 Protocol for MOET programs in sheep. Theriogenology 2009; 72:477-83. [PMID: 19515409 DOI: 10.1016/j.theriogenology.2009.04.002] [Citation(s) in RCA: 39] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2009] [Revised: 03/28/2009] [Accepted: 04/14/2009] [Indexed: 11/18/2022]
Abstract
The effect of various superstimulatory treatments on the number of corpora lutea, fertilization rate, and embryo yield was studied in sheep. Overall, data from 708 Merino donors and 4262 embryos were analyzed in four experiments. In Experiment 1, varying intervals of progesterone treatment (5 to 14 d) before follicle-stimulating hormone (FSH) administration did not significantly affect the proportion of responding donors, the mean number of corpora lutea, or the mean number of recovered and transferable embryos per donor. In Experiment 2, a single dose of equine chorionic gonadotropin (eCG, 200 or 300 IU) combined with the FSH treatment (i.e., given at CIDR removal) reduced the number and the quality of embryos compared with that for not giving eCG (P<0.05). In Experiment 3, one dose of gonadotropin-releasing hormone (GnRH) given 24h after CIDR removal improved the number of transferable embryos compared with that for not giving GnRH (P<0.05). In Experiment 4, the new superstimulatory Day 0 Protocol, which includes starting FSH treatment at the emergence of Wave 1 (i.e., soon after ovulation, in the absence of a large follicle), improved ovarian response, with a tendency to produce more embryos compared with that for the Traditional Protocol. In summary, this study, analyzing data from various pharmacologic treatments, allows an improvement from four to eight transferable embryos per treated donor in multiple ovulation and embryo transfer programs in sheep.
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Affiliation(s)
- A Menchaca
- Instituto de Reproducción Animal Uruguay, Montevideo, Uruguay.
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Berlinguer F, Leoni GG, Succu S, Spezzigu A, Madeddu M, Satta V, Bebbere D, Contreras-Solis I, Gonzalez-Bulnes A, Naitana S. Exogenous melatonin positively influences follicular dynamics, oocyte developmental competence and blastocyst output in a goat model. J Pineal Res 2009; 46:383-91. [PMID: 19552761 DOI: 10.1111/j.1600-079x.2009.00674.x] [Citation(s) in RCA: 46] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
The role of melatonin in modulating mammalian reproduction is of particular interest; however, its effects on ovarian follicles and their oocytes still remain to be characterized. This study determined the influence of melatonin treatment on follicular growth patterns and on in vitro oocyte developmental competence. In a first experiment, the effects of melatonin supplementation on follicular dynamics were evaluated using daily transrectal ultrasonographies for 21 days, in 7 multiparous Sarda goats receiving a subcutaneous implant of 18 mg of melatonin and in 5 control untreated does. Melatonin caused more follicular waves (5.2 +/- 0.2 versus 4 +/- 0.3; P < 0.05) as the waves were shortened at around 2 days when compared with the non-melatonin treated control goats (P < 0.001). Oocyte developmental competence was evaluated in a second experiment by applying procedures for in vitro embryo production. There were no significant differences in the total number of oocytes obtained from 6 control (n = 192) and 7 melatonin-treated (n = 265) goats given follicle stimulating hormone to induce follicular development. Differences in oocyte developmental competence between the two groups became evident after in vitro fertilization and culture; melatonin increased the rate of cleaved oocytes in comparison with control animals (82.5 versus 63.4%; P < 0.001), advanced timing of embryo development and enhanced blastocyst output (31.5 versus 16.3%; P < 0.01). However, blastocyst quality, as evaluated by cryotolerance and gene expression analysis, was not found to be different between the groups. In conclusion, in vivo melatonin treatment is beneficial for increasing ovarian follicle turnover and improving oocyte developmental competence and kinetics of the blastocyst.
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