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Biblioteca(s): |
Embrapa Caprinos e Ovinos. |
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Data corrente: |
01/03/2023 |
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Data da última atualização: |
01/03/2023 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
BEVILAQUA, J. R.; RODRIGUEZ, M. G. K.; VERGANI, G. B.; FONSECA, J. F. da; BARTLEWSKI, P. M.; OLIVEIRA, M. E. F. |
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Afiliação: |
JÚLIA RIBEIRO BEVILAQUA, São Paulo State University; MARIANA GARCIA KAKO RODRIGUEZ, São Paulo State University; GIOVANNA SERPA MACIEL, São Paulo State University; JEFERSON FERREIRA DA FONSECA, CNPC; PAWEL MIECZYSLAW BARTLEWSKI, University of Guelph; MARIA EMILIA FRANCO OLIVEIRA, São Paulo State University. |
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Título: |
Luteal function, biometrics, and echotextural attributes in Santa Inês ewes superovulated with different total doses of porcine follicle-stimulating hormone. |
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Ano de publicação: |
2023 |
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Fonte/Imprenta: |
Animals, v. 13, n. 5, p. 1-17, 2023. |
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DOI: |
https://doi.org/10.3390/ani13050873 |
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Idioma: |
Inglês |
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Conteúdo: |
Abstract: Premature regression of corpora lutea (PRCL) may adversely affect the outcome of hormonal ovarian superstimulation in small ruminants, and the total dose of exogenous gonadotropins used may be one of the causes of this condition. There were two major objectives of the present study: (1) to evaluate the effects of different superovulatory doses of porcine follicle-stimulating hormone (pFSH) on the biometry, blood perfusion (Doppler), and echotextural characteristics of luteal structures; and, (2) to determine the usefulness of biometric, vascular, and echotextural luteal variables, as well as measurements of circulating progesterone (P4) concentrations for early detection of PRCL in superovulated Santa Inês ewes. Twenty-seven Santa Inês ewes received an intravaginal P4-releasing device (CIDR) from Days 0 to 8 (Day 0 = random day of the anovulatory period). An IM injection of d-cloprostenol (37.5 ?g) was given at the time of the CIDR insertion and withdrawal. On Day 6, all the ewes received 300 IU of eCG IM and were divided into three treatment groups (each n = 9): G100 (100 mg); G133 (133 mg); and G200 (200 mg of pFSH) administered IM every 12 h in eight injections. Transrectal ovarian ultrasonography and jugular blood sampling for serum P4 measurements were performed on Days 11 to 15. On the day of embryo recovery (Day 15), all the ewes underwent diagnostic videolaparoscopy and were classified, based on their luteal characteristics, into three response groups: nCL (ewes with normal CL only); rCL (ewes with regressing CL only); and ewes with both nCL and rCL following the superovulatory regimen. Our present results indicate that the total pFSH doses of 100 mg and 200 mg result in similar ovulatory responses and luteal function/biometrics, although the percentage of donor ewes with nCL was greater (p < 0.05) for G100 compared with the G200 animals. An application of 133 mg of pFSH was associated with diminished luteogenesis. Lastly, circulating P4 concentrations, ultrasonographic estimates of total luteal area, and CL pixel heterogeneity (standard deviation of numerical pixel values) are promising markers of luteal inadequacy in superovulated ewes. MenosAbstract: Premature regression of corpora lutea (PRCL) may adversely affect the outcome of hormonal ovarian superstimulation in small ruminants, and the total dose of exogenous gonadotropins used may be one of the causes of this condition. There were two major objectives of the present study: (1) to evaluate the effects of different superovulatory doses of porcine follicle-stimulating hormone (pFSH) on the biometry, blood perfusion (Doppler), and echotextural characteristics of luteal structures; and, (2) to determine the usefulness of biometric, vascular, and echotextural luteal variables, as well as measurements of circulating progesterone (P4) concentrations for early detection of PRCL in superovulated Santa Inês ewes. Twenty-seven Santa Inês ewes received an intravaginal P4-releasing device (CIDR) from Days 0 to 8 (Day 0 = random day of the anovulatory period). An IM injection of d-cloprostenol (37.5 ?g) was given at the time of the CIDR insertion and withdrawal. On Day 6, all the ewes received 300 IU of eCG IM and were divided into three treatment groups (each n = 9): G100 (100 mg); G133 (133 mg); and G200 (200 mg of pFSH) administered IM every 12 h in eight injections. Transrectal ovarian ultrasonography and jugular blood sampling for serum P4 measurements were performed on Days 11 to 15. On the day of embryo recovery (Day 15), all the ewes underwent diagnostic videolaparoscopy and were classified, based on their luteal characteristics, into three response groups: nCL ... Mostrar Tudo |
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Palavras-Chave: |
Drug effects; Folículo ovariano; Ovarian ultrasonography; Raça Santa Inês; Ultrassonografia ovariana. |
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Thesagro: |
Corpo Lúteo; Ovelha; Ovino; Progesterona; Reprodução Animal; Superovulação; Ultrassom. |
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Thesaurus Nal: |
Corpus luteum; Follicle-stimulating hormone; Ovarian follicles; Progesterone; Reproduction; Sheep; Superovulation. |
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Categoria do assunto: |
L Ciência Animal e Produtos de Origem Animal |
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Marc: |
LEADER 03466naa a2200421 a 4500
001 2152018
005 2023-03-01
008 2023 bl uuuu u00u1 u #d
024 7 $ahttps://doi.org/10.3390/ani13050873$2DOI
100 1 $aBEVILAQUA, J. R.
245 $aLuteal function, biometrics, and echotextural attributes in Santa Inês ewes superovulated with different total doses of porcine follicle-stimulating hormone.$h[electronic resource]
260 $c2023
520 $aAbstract: Premature regression of corpora lutea (PRCL) may adversely affect the outcome of hormonal ovarian superstimulation in small ruminants, and the total dose of exogenous gonadotropins used may be one of the causes of this condition. There were two major objectives of the present study: (1) to evaluate the effects of different superovulatory doses of porcine follicle-stimulating hormone (pFSH) on the biometry, blood perfusion (Doppler), and echotextural characteristics of luteal structures; and, (2) to determine the usefulness of biometric, vascular, and echotextural luteal variables, as well as measurements of circulating progesterone (P4) concentrations for early detection of PRCL in superovulated Santa Inês ewes. Twenty-seven Santa Inês ewes received an intravaginal P4-releasing device (CIDR) from Days 0 to 8 (Day 0 = random day of the anovulatory period). An IM injection of d-cloprostenol (37.5 ?g) was given at the time of the CIDR insertion and withdrawal. On Day 6, all the ewes received 300 IU of eCG IM and were divided into three treatment groups (each n = 9): G100 (100 mg); G133 (133 mg); and G200 (200 mg of pFSH) administered IM every 12 h in eight injections. Transrectal ovarian ultrasonography and jugular blood sampling for serum P4 measurements were performed on Days 11 to 15. On the day of embryo recovery (Day 15), all the ewes underwent diagnostic videolaparoscopy and were classified, based on their luteal characteristics, into three response groups: nCL (ewes with normal CL only); rCL (ewes with regressing CL only); and ewes with both nCL and rCL following the superovulatory regimen. Our present results indicate that the total pFSH doses of 100 mg and 200 mg result in similar ovulatory responses and luteal function/biometrics, although the percentage of donor ewes with nCL was greater (p < 0.05) for G100 compared with the G200 animals. An application of 133 mg of pFSH was associated with diminished luteogenesis. Lastly, circulating P4 concentrations, ultrasonographic estimates of total luteal area, and CL pixel heterogeneity (standard deviation of numerical pixel values) are promising markers of luteal inadequacy in superovulated ewes.
650 $aCorpus luteum
650 $aFollicle-stimulating hormone
650 $aOvarian follicles
650 $aProgesterone
650 $aReproduction
650 $aSheep
650 $aSuperovulation
650 $aCorpo Lúteo
650 $aOvelha
650 $aOvino
650 $aProgesterona
650 $aReprodução Animal
650 $aSuperovulação
650 $aUltrassom
653 $aDrug effects
653 $aFolículo ovariano
653 $aOvarian ultrasonography
653 $aRaça Santa Inês
653 $aUltrassonografia ovariana
700 1 $aRODRIGUEZ, M. G. K.
700 1 $aVERGANI, G. B.
700 1 $aFONSECA, J. F. da
700 1 $aBARTLEWSKI, P. M.
700 1 $aOLIVEIRA, M. E. F.
773 $tAnimals$gv. 13, n. 5, p. 1-17, 2023.
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| 2. |  | GAUDENCIO, C. A. Rotação e sucessão de culturas da soja no Brasil. In: MOLESTINA, C. J. (Ed.). Manejo del cultivo, control de plagas y enfermedades de la soja. Montevideo: IICA-BID-PROCISUR, 1987. p. 63-65. (IICA. Diálogo, 21). Seminario sobre manejo das culturas de soja e girassol y Reuniao sobre controle de enfermidades de soja e girassol.| Biblioteca(s): Embrapa Soja. |
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| 19. | | GAUDENCIO, C. A.; WOBETO, C.; SANDINI, I. L. Comportamento do milho apos ervilhaca, em sistemas de rotacao com a soja, no planalto paranaense de Guarapuava. In: REUNIAO DE PESQUISA DE SOJA DA REGIAO CENTRAL DO BRASIL, 17., 1995, Goiania. Ata e resumos. Goiania: EMGOPA, 1995. p.118-119. (EMGOPA. Documentos, 28).| Biblioteca(s): Embrapa Soja. |
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