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Registro Completo |
Biblioteca(s): |
Embrapa Rondônia. |
Data corrente: |
12/05/2021 |
Data da última atualização: |
13/05/2021 |
Tipo da produção científica: |
Artigo em Periódico Indexado |
Autoria: |
ANDRADE, J. de S.; MOREIRA, E. M.; SILVA, G. M. da; SCHNEIDER, A.; NUNES, V. R. R.; SILVA, R. R. da; PFEIFER, L. F. M. |
Afiliação: |
JÉSSICA DE SOUZA ANDRADE, Bionorte, Programa de Pós-Graduação em Biodiversidade e Biotecnologia, Porto Velho, RO; ELIZÂNGELA MÍRIAN MOREIRA, Universidade Federal do Amazonas (UFAM); GEORGE MOREIRA DA SILVA, Universidade Federal de Rondônia (UNIR); AUGUSTO SCHNEIDER, Universidade Federal de Pelotas (UFPel); VANESSA RACHELE RIBEIRO NUNES, CPAF-RO; RENATA REIS DA SILVA, CPAF-RO; LUIZ FRANCISCO MACHADO PFEIFER, CPAF-RO. |
Título: |
Uterine health and fertility of timed AI postpartum Nelore beef cows raised in the Amazon biome. |
Ano de publicação: |
2021 |
Fonte/Imprenta: |
Livestock Science, v. 249, 104528, July 2021. |
ISSN: |
1871-1413 |
DOI: |
https://doi.org/10.1016/j.livsci.2021.104528 |
Idioma: |
Inglês |
Conteúdo: |
This study evaluated the effect of uterine health on the fertility of postpartum beef cows. Multiparous lactating Nelore cows (Bos indicus; n = 155) were subjected to a timed artificial insemination (TAI) protocol. Cows were included in a progesterone-estradiol based TAI protocol. On Day 0, before the beginning of the protocol, cows were subjected to evaluation of purulent vaginal discharge (PVD) and collection of uterine tissue using the cytobrush technique. Slides for polymorphonuclear (PMN) cells counting were prepared before the same cytobrush was used for RNA extraction and analysis of IL-1B, IL-6, IL-8, TNFa, GAPDH, and Bactin gene transcription. Cows were separated into 4 categories according to the proportion of PMN and PVD: 1) Healthy (HE; n = 87), cows with <- 4.75% PMN and PVD of 0; 2) Positive Purulent Vaginal Discharge (PVD+; n = 24), cows with < - 4.75% PMN and PVD >- 1; 3) Subclinical Endometritis (SCE; n = 29), cows with > 4.75% PMN and PVD of 0, and; 4) Subclinical Endometritis + PVD+ (SCEP; n = 15), cows with > 4.75% PMN and PVD ? 1. Cows in the HE group had a greater (P < 0.05) pregnancy per AI (P/IA) than cows in SCE and SCEP groups. However, P/AI in cows from the PVD+ group was not different in comparison to HE and SCE groups (P > 0.05). Cows from the SCE and SCEP groups had a higher (P < 0.001) proportion of PMN cells in the uterus than HE and PVD+ groups. Relative transcription of IL-6 and TNFa did not change among groups (P > 0.05). In contrast, transcription of IL-8 was greater (P = 0.02) in SCEP than HE and SCE groups. The relative transcription IL-1B was greater (P < 0.05) in SCEP than in PVD+, but the cows in the HE and SCE groups were not different from the other groups (P = 0.08). Our results demonstrate that postpartum beef cows, raised in the Amazon biome, with a higher proportion of PMN cells have lower fertility. Moreover, ~ 40% of the postpartum cows included in TAI programs early postpartum had suboptimal uterine conditions (subclinical endometritis, purulent vaginal discharge, or both). MenosThis study evaluated the effect of uterine health on the fertility of postpartum beef cows. Multiparous lactating Nelore cows (Bos indicus; n = 155) were subjected to a timed artificial insemination (TAI) protocol. Cows were included in a progesterone-estradiol based TAI protocol. On Day 0, before the beginning of the protocol, cows were subjected to evaluation of purulent vaginal discharge (PVD) and collection of uterine tissue using the cytobrush technique. Slides for polymorphonuclear (PMN) cells counting were prepared before the same cytobrush was used for RNA extraction and analysis of IL-1B, IL-6, IL-8, TNFa, GAPDH, and Bactin gene transcription. Cows were separated into 4 categories according to the proportion of PMN and PVD: 1) Healthy (HE; n = 87), cows with <- 4.75% PMN and PVD of 0; 2) Positive Purulent Vaginal Discharge (PVD+; n = 24), cows with < - 4.75% PMN and PVD >- 1; 3) Subclinical Endometritis (SCE; n = 29), cows with > 4.75% PMN and PVD of 0, and; 4) Subclinical Endometritis + PVD+ (SCEP; n = 15), cows with > 4.75% PMN and PVD ? 1. Cows in the HE group had a greater (P < 0.05) pregnancy per AI (P/IA) than cows in SCE and SCEP groups. However, P/AI in cows from the PVD+ group was not different in comparison to HE and SCE groups (P > 0.05). Cows from the SCE and SCEP groups had a higher (P < 0.001) proportion of PMN cells in the uterus than HE and PVD+ groups. Relative transcription of IL-6 and TNFa did not change among groups (P > 0.05). In contrast, trans... Mostrar Tudo |
Palavras-Chave: |
Citocina; Cytobrush; Inseminação artifical por tempo determinado; PMN cells; Timed artificial insemination (TAI); Uterine health. |
Thesagro: |
Fertilidade Animal; Gado de Corte; Gado Nelore; Imunidade; Pós-Parto; Reprodução Animal; Sanidade Animal; Útero; Vaca de Corte. |
Thesaurus Nal: |
Animal fertility; Animal reproduction; Beef cows; Cytokines; Immunity; Nellore; Postpartum period. |
Categoria do assunto: |
G Melhoramento Genético |
Marc: |
LEADER 03446naa a2200481 a 4500 001 2131781 005 2021-05-13 008 2021 bl uuuu u00u1 u #d 022 $a1871-1413 024 7 $ahttps://doi.org/10.1016/j.livsci.2021.104528$2DOI 100 1 $aANDRADE, J. de S. 245 $aUterine health and fertility of timed AI postpartum Nelore beef cows raised in the Amazon biome.$h[electronic resource] 260 $c2021 520 $aThis study evaluated the effect of uterine health on the fertility of postpartum beef cows. Multiparous lactating Nelore cows (Bos indicus; n = 155) were subjected to a timed artificial insemination (TAI) protocol. Cows were included in a progesterone-estradiol based TAI protocol. On Day 0, before the beginning of the protocol, cows were subjected to evaluation of purulent vaginal discharge (PVD) and collection of uterine tissue using the cytobrush technique. Slides for polymorphonuclear (PMN) cells counting were prepared before the same cytobrush was used for RNA extraction and analysis of IL-1B, IL-6, IL-8, TNFa, GAPDH, and Bactin gene transcription. Cows were separated into 4 categories according to the proportion of PMN and PVD: 1) Healthy (HE; n = 87), cows with <- 4.75% PMN and PVD of 0; 2) Positive Purulent Vaginal Discharge (PVD+; n = 24), cows with < - 4.75% PMN and PVD >- 1; 3) Subclinical Endometritis (SCE; n = 29), cows with > 4.75% PMN and PVD of 0, and; 4) Subclinical Endometritis + PVD+ (SCEP; n = 15), cows with > 4.75% PMN and PVD ? 1. Cows in the HE group had a greater (P < 0.05) pregnancy per AI (P/IA) than cows in SCE and SCEP groups. However, P/AI in cows from the PVD+ group was not different in comparison to HE and SCE groups (P > 0.05). Cows from the SCE and SCEP groups had a higher (P < 0.001) proportion of PMN cells in the uterus than HE and PVD+ groups. Relative transcription of IL-6 and TNFa did not change among groups (P > 0.05). In contrast, transcription of IL-8 was greater (P = 0.02) in SCEP than HE and SCE groups. The relative transcription IL-1B was greater (P < 0.05) in SCEP than in PVD+, but the cows in the HE and SCE groups were not different from the other groups (P = 0.08). Our results demonstrate that postpartum beef cows, raised in the Amazon biome, with a higher proportion of PMN cells have lower fertility. Moreover, ~ 40% of the postpartum cows included in TAI programs early postpartum had suboptimal uterine conditions (subclinical endometritis, purulent vaginal discharge, or both). 650 $aAnimal fertility 650 $aAnimal reproduction 650 $aBeef cows 650 $aCytokines 650 $aImmunity 650 $aNellore 650 $aPostpartum period 650 $aFertilidade Animal 650 $aGado de Corte 650 $aGado Nelore 650 $aImunidade 650 $aPós-Parto 650 $aReprodução Animal 650 $aSanidade Animal 650 $aÚtero 650 $aVaca de Corte 653 $aCitocina 653 $aCytobrush 653 $aInseminação artifical por tempo determinado 653 $aPMN cells 653 $aTimed artificial insemination (TAI) 653 $aUterine health 700 1 $aMOREIRA, E. M. 700 1 $aSILVA, G. M. da 700 1 $aSCHNEIDER, A. 700 1 $aNUNES, V. R. R. 700 1 $aSILVA, R. R. da 700 1 $aPFEIFER, L. F. M. 773 $tLivestock Science$gv. 249, 104528, July 2021.
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6. | | SILVA, R. R.; BORTOLOTTO, I. M.; POTT, V. J. Ocorrencia da subfamilia mimosoideae (leguminosae) na bacia da Baia Negra, Pantanal, em Ladario - MS. In: SIMPOSIO SOBRE RECURSOS NATURAIS E SOCIO-ECONOMICOS DO PANTANAL, 2., 1996, Corumba, MS. Manejo e conservacao - anais. Corumba: Embrapa Pantanal, 1999. p.291-295.Biblioteca(s): Embrapa Pantanal. |
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7. | | SILVA, R. R.; BORTOLOTTO, I. M.; POTT, V. J. Ocorrencia da subfamilia Mimosoideae (Leguminosae) na microbacia da Baia Negra, Pantanal, Ladario - MS. In: SEMINARIO DE ESTUDOS BIOLOGICOS, 20., 1995; ENCONTRO DE BOTANICOS DO CENTRO OESTE, 3., 1995, Cuiaba. Programa e resumos... Cuiaba: UFMT / SBB, 1995. p.44Biblioteca(s): Embrapa Pantanal. |
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11. | | SILVA, R. R. C. da; CARNEIRO JUNIOR, J. M.; PINHEIRO, A. K.; SILVA, M. S.; RANUCCI, R. C.; SILVA, R. R. C. da. Avaliação dos índices reprodutivos em bovinos leiteiros no Acre por meio de simulação computacional. In: REUNIÃO ANUAL DA SOCIEDADE BRASILEIRA DE ZOOTECNIA, 55.; CONGRESSO BRASILEIRO DE ZOOTECNIA, 28., 2018, Goiânia. Construindo saberes, formando pessoas e transformando a produção animal: anais. Gioânia: SBZ: ABZ, 2018. 5 p.Tipo: Artigo em Anais de Congresso |
Biblioteca(s): Embrapa Acre. |
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12. | | SILVA, R. R. da; SILVA, M. S.; CARNEIRO JUNIOR, J. M.; PINHEIRO, A. K.; SILVA, R. R. C. da; RANUCCI, R. C. Efeitos fixos sobre desempenho ponderal em bovinos Nelore no Acre. In: REUNIÃO ANUAL DA SOCIEDADE BRASILEIRA DE ZOOTECNIA, 55.; CONGRESSO BRASILEIRO DE ZOOTECNIA, 28., 2018, Goiânia. Construindo saberes, formando pessoas e transformando a produção animal: anais. Gioânia: SBZ: ABZ, 2018. 5 p.Tipo: Artigo em Anais de Congresso |
Biblioteca(s): Embrapa Acre. |
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14. | | LOPES, P. R. C.; OLIVEIRA, I. V. de M.; SILVA, R. R. S. da. Caracterização morfológica de gemas de maçã variedade Princesa. In: CONGRESSO NACIONAL DE BOTÂNICA, 60.; REUNIÃO NORDESTINA DE BOTÂNICA, 32.; ERBOT - ENCONTRO REGIONAL DE BOTÂNICOS - MG, BA , ES, 29., 2009, Feira de Santana. Botânica brasileira: futuro e compromissos. Feira de Santana: SBB: UEFS, 2009. 1 CD-ROM.Tipo: Resumo em Anais de Congresso |
Biblioteca(s): Embrapa Semiárido. |
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18. | | LOPES, P. R. C.; OLIVEIRA, I. V. de M.; SILVA, R. R. S. da. Enraizamento de estacas lenhosas Pyrus calleryana sob nebulização intermitente. In: CONGRESSO NACIONAL DE BOTÂNICA, 60.; REUNIÃO NORDESTINA DE BOTÂNICA, 32.; ERBOT - ENCONTRO REGIONAL DE BOTÂNICOS - MG, BA , ES, 29., 2009, Feira de Santana. Botânica brasileira: futuro e compromissos. Feira de Santana: SBB: UEFS, 2009. 1 CD ROM.Tipo: Resumo em Anais de Congresso |
Biblioteca(s): Embrapa Semiárido. |
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Registros recuperados : 236 | |
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