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Registros recuperados : 16 | |
10. | | FAGUNDES, E. da S.; NEVES, P. M. A.; SILVA, G. M. da; NUNES, V. R. R.; SOUZA, V. L. de; PFEIFER, L. F. M. Relação do grau de acabamento com as perdas pós-resfriamento de carcaças e com o ângulo da garupa em bovinos. In: ENCONTRO DE INICIAÇÃO À PESQUISA DA EMBRAPA RONDÔNIA, 10.; ENCONTRO DE PÓS-GRADUAÇÃO DA EMBRAPA RONDÔNIA, 5., 2019, Porto Velho. Anais... Porto Velho, RO: Embrapa Rondônia, 2019. p. 21. Biblioteca(s): Embrapa Rondônia. |
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11. | | FAGUNDES, E. da S.; SILVA, G. M. da; NEVES, P. M. A.; SOUZA, V. L. de; NUNES, V. R. R.; PFEIFER, L. F. M. Relação entre fertilidade e resposta ovariana de vacas submetidas a protocolo de IATF. In: ENCONTRO DE INICIAÇÃO À PESQUISA DA EMBRAPA RONDÔNIA, 10.; ENCONTRO DE PÓS-GRADUAÇÃO DA EMBRAPA RONDÔNIA, 5., 2019, Porto Velho. Anais... Porto Velho, RO: Embrapa Rondônia, 2019. p. 22. Biblioteca(s): Embrapa Rondônia. |
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12. | | SOUZA, V. L. de; NEVES, P. M. A.; ANDRADE, J. de S.; SILVA, G. M. da; OLIVEIRA JÚNIOR, J. S. de; PFEIFER, L. F. M. Efeito do cio associado a cinética espermática na fertilidade de vacas submetidas a um protocolo de inseminação artificial em tempo fixo. In: ENCONTRO DE INICIAÇÃO À PESQUISA DA EMBRAPA RONDÔNIA, 10.; ENCONTRO DE PÓS-GRADUAÇÃO DA EMBRAPA RONDÔNIA, 5., 2019, Porto Velho. Anais... Porto Velho, RO: Embrapa Rondônia, 2019. p. 16. Biblioteca(s): Embrapa Rondônia. |
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13. | | LIMA, R. A. de; NEVES, P. M. A.; MELO, V. T. O. de; SILVA, G. M. da; SILVA, K. A. da; PFEIFER, L. F. M. How body condition score affects milk production and the metabolic parameters in postpartum crossbred dairy cows raised in Amazon biome? Research, Society and Development, v. 11, n. 6, e28511628970, 2022. Biblioteca(s): Embrapa Rondônia. |
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14. | | PFEIFER, L. F. M.; MOREIRA, E. M.; SILVA, G. M. da; SOUZA, V. L. de; NUNES, V. R. R.; ANDRADE, J. de S.; NEVES, P. M. A.; FERREIRA, R. Effect of estradiol cypionate on estrus expression and pregnancy in timed artificially inseminated beef cows. Livestock Science, v. 231, 103886, 2020. Biblioteca(s): Embrapa Rondônia. |
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15. | | NUNES, V. R. R.; MOREIRA, E. M.; SILVA, G. M. da; NEVES, P. M. A.; SOUZA, V. L. de; ANDRADE, J. de S.; SANTOS, I. A. P.; PFEIFER, L. F. M. Impact of supplementation during the rainy and dry seasons on ovarian responses in Girolando cows. In: CONGRESSO INTERNACIONAL DE PECUÁRIA LEITEIRA DA AMAZÔNIA OCIDENTAL, 1., 2019, Rio Branco, AC. Anais... Rio Branco, AC: Edufac, 2019. p. 67. Biblioteca(s): Embrapa Rondônia. |
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16. | | PFEIFER, L. F. M.; ANDRADE, J. de S.; MOREIRA, E. M.; SILVA, R. R. da; NEVES, P. M. A.; SILVA, G. M. da S.; LEMOS, I. C.; SCHNEIDER, A. Uterine inflammation and fertility of beef cows subjected to timed AI at different days postpartum. Animal Reproduction Science, v. 197, p. 268-277, 2018. Biblioteca(s): Embrapa Rondônia. |
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Registros recuperados : 16 | |
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Registro Completo
Biblioteca(s): |
Embrapa Rondônia. |
Data corrente: |
18/09/2018 |
Data da última atualização: |
18/09/2018 |
Tipo da produção científica: |
Artigo em Periódico Indexado |
Circulação/Nível: |
A - 2 |
Autoria: |
PFEIFER, L. F. M.; ANDRADE, J. de S.; MOREIRA, E. M.; SILVA, R. R. da; NEVES, P. M. A.; SILVA, G. M. da S.; LEMOS, I. C.; SCHNEIDER, A. |
Afiliação: |
LUIZ FRANCISCO MACHADO PFEIFER, CPAF-RO; Jéssica de Souza Andrade, Bionorte, Programa de Pós-Graduação em Biodiversidade e Biotecnologia; Elizângela Mírian Moreira; RENATA REIS DA SILVA, CPAF-RO; Paulo Marcos Araújo Neves, UNIR; George Moreira da Silva, UNIR; Izabela Cristina Lemos, UNIR; Augusto Schneider, UFPel. |
Título: |
Uterine inflammation and fertility of beef cows subjected to timed AI at different days postpartum. |
Ano de publicação: |
2018 |
Fonte/Imprenta: |
Animal Reproduction Science, v. 197, p. 268-277, 2018. |
DOI: |
https://doi.org/10.1016/j.anireprosci.2018.08.039 |
Idioma: |
Inglês |
Conteúdo: |
The aim of this study was to evaluate the uterine health and fertility of postpartum beef cows subjected to timed AI (TAI) protocols at different days from calving. Lactating Nelore cows (Bos indicus; n = 244) were used in this study. The TAI protocols were initiated between 20 and 60 days postpartum (DPP). Cows were subjected to an estradiol-progesterone based TAI protocol. The cows were divided into three groups according to the days postpartum at the time the hormonal treatment was initiated: 1) Early (n = 64), cows between 20 and 30 DPP; 2) Middle (n = 115), cows between 31 and 45 DPP; and 3) Late (n = 65), cows between 46 and 60 DPP. At Day 0 of the protocol, endometrial cytobrush samples were collected. Slides for polymorphonuclear (PMN) cell counting were prepared and cytobrush was used for RNA extraction and analysis of relative abundance of il1, il6, il8, and tnf mRNA. Cows from the Early group had less (P < 0.05) pregnancies per AI (P/AI) than cows from Middle and Late groups; 29.7% (19/64), 45.2% (52/115), and 52.31% (34/65), respectively. Accordingly, the Early group had a greater (P < 0.05) proportion of PMN cells in the uterus than Middle and Late groups; 9.0%, 3.8%, and 2.2%, respectively. Relative abundances of il1 and il8 mRNA were greater (P < 0.05) in the Early group than Middle and Late groups. These results indicate that beef cows subjected to TAI protocols early postpartum (< 30 DPP) are less likely to become pregnant, which is associated with increased inflammation and relative abundance of mRNA for the proinflammatory cytokines il1 and il8. MenosThe aim of this study was to evaluate the uterine health and fertility of postpartum beef cows subjected to timed AI (TAI) protocols at different days from calving. Lactating Nelore cows (Bos indicus; n = 244) were used in this study. The TAI protocols were initiated between 20 and 60 days postpartum (DPP). Cows were subjected to an estradiol-progesterone based TAI protocol. The cows were divided into three groups according to the days postpartum at the time the hormonal treatment was initiated: 1) Early (n = 64), cows between 20 and 30 DPP; 2) Middle (n = 115), cows between 31 and 45 DPP; and 3) Late (n = 65), cows between 46 and 60 DPP. At Day 0 of the protocol, endometrial cytobrush samples were collected. Slides for polymorphonuclear (PMN) cell counting were prepared and cytobrush was used for RNA extraction and analysis of relative abundance of il1, il6, il8, and tnf mRNA. Cows from the Early group had less (P < 0.05) pregnancies per AI (P/AI) than cows from Middle and Late groups; 29.7% (19/64), 45.2% (52/115), and 52.31% (34/65), respectively. Accordingly, the Early group had a greater (P < 0.05) proportion of PMN cells in the uterus than Middle and Late groups; 9.0%, 3.8%, and 2.2%, respectively. Relative abundances of il1 and il8 mRNA were greater (P < 0.05) in the Early group than Middle and Late groups. These results indicate that beef cows subjected to TAI protocols early postpartum (< 30 DPP) are less likely to become pregnant, which is associated with increased... Mostrar Tudo |
Palavras-Chave: |
Bovino de corte; Células polimorfonucleares; Cytobrush; Fertilidade uterina; PMN cell. |
Thesagro: |
Fertilidade Animal. |
Thesaurus NAL: |
Calving; Cytokines. |
Categoria do assunto: |
L Ciência Animal e Produtos de Origem Animal |
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/183175/1/ARS-saude-uterina-2018.pdf
|
Marc: |
LEADER 02544naa a2200313 a 4500 001 2095927 005 2018-09-18 008 2018 bl uuuu u00u1 u #d 024 7 $ahttps://doi.org/10.1016/j.anireprosci.2018.08.039$2DOI 100 1 $aPFEIFER, L. F. M. 245 $aUterine inflammation and fertility of beef cows subjected to timed AI at different days postpartum.$h[electronic resource] 260 $c2018 520 $aThe aim of this study was to evaluate the uterine health and fertility of postpartum beef cows subjected to timed AI (TAI) protocols at different days from calving. Lactating Nelore cows (Bos indicus; n = 244) were used in this study. The TAI protocols were initiated between 20 and 60 days postpartum (DPP). Cows were subjected to an estradiol-progesterone based TAI protocol. The cows were divided into three groups according to the days postpartum at the time the hormonal treatment was initiated: 1) Early (n = 64), cows between 20 and 30 DPP; 2) Middle (n = 115), cows between 31 and 45 DPP; and 3) Late (n = 65), cows between 46 and 60 DPP. At Day 0 of the protocol, endometrial cytobrush samples were collected. Slides for polymorphonuclear (PMN) cell counting were prepared and cytobrush was used for RNA extraction and analysis of relative abundance of il1, il6, il8, and tnf mRNA. Cows from the Early group had less (P < 0.05) pregnancies per AI (P/AI) than cows from Middle and Late groups; 29.7% (19/64), 45.2% (52/115), and 52.31% (34/65), respectively. Accordingly, the Early group had a greater (P < 0.05) proportion of PMN cells in the uterus than Middle and Late groups; 9.0%, 3.8%, and 2.2%, respectively. Relative abundances of il1 and il8 mRNA were greater (P < 0.05) in the Early group than Middle and Late groups. These results indicate that beef cows subjected to TAI protocols early postpartum (< 30 DPP) are less likely to become pregnant, which is associated with increased inflammation and relative abundance of mRNA for the proinflammatory cytokines il1 and il8. 650 $aCalving 650 $aCytokines 650 $aFertilidade Animal 653 $aBovino de corte 653 $aCélulas polimorfonucleares 653 $aCytobrush 653 $aFertilidade uterina 653 $aPMN cell 700 1 $aANDRADE, J. de S. 700 1 $aMOREIRA, E. M. 700 1 $aSILVA, R. R. da 700 1 $aNEVES, P. M. A. 700 1 $aSILVA, G. M. da S. 700 1 $aLEMOS, I. C. 700 1 $aSCHNEIDER, A. 773 $tAnimal Reproduction Science$gv. 197, p. 268-277, 2018.
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