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Registro Completo |
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Biblioteca(s): |
Embrapa Milho e Sorgo; Embrapa Pesca e Aquicultura; Embrapa Soja. |
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Data corrente: |
09/11/2018 |
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Data da última atualização: |
04/02/2019 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
COSTA, R. V. da; QUEIROZ, V. A. V.; COTA, L. V.; SILVA, D. D. da; LANZA, F. E.; ALMEIDA, R. E. M. de; PEREIRA, A. A.; ALVES, R. R.; CAMPOS, L. J. M. |
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Afiliação: |
RODRIGO VERAS DA COSTA, CNPMS; VALERIA APARECIDA VIEIRA QUEIROZ, CNPMS; LUCIANO VIANA COTA, CNPMS; DAGMA DIONISIA DA SILVA, CNPMS; Fabrício E. Lanza, Universidade Federal de Viçosa; RODRIGO ESTEVAM MUNHOZ DE ALMEIDA, CNPASA; Alan A. Pereira; ROSIANA RODRIGUES ALVES, CNPASA; LEONARDO JOSE MOTTA CAMPOS, CNPSO. |
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Título: |
Delaying harvest for naturally drying maize grain increases the risk of kernel rot and fumonisin contamination |
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Ano de publicação: |
2018 |
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Fonte/Imprenta: |
Tropical Plant Pathology, v. 43, p. 452-459, 2018. |
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DOI: |
10.1007/s40858-018-0234-0 |
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Idioma: |
Inglês |
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Conteúdo: |
Artificial drying, although costly, ensures a safe storage and preserves post-harvest grain quality. Alternatively, a more costeffective measure is to delay harvest to promote natural drying, but this management may increase the risk of mycotoxigenic ear rot fungi contamination. The objective was to evaluate the effect of increasing maize harvest delay on fungal disease and fumonisin levels. Three maize hybrids (BRS1035, Attack and DKB390 YG) were sown in the field to study the effect of five harvest delays (15, 30, 45, 60 and 75 days) after the optimum date (18% grain moisture). There was a significant trend of increasing the incidence of kernel rot and total fumonisins in the grains when delaying harvest, but fungal incidence and mycotoxin contamination varied with the hybrid. The main fungi detected in the grain samples were Fusarium verticillioides and Stenocarpella maydis. The hybrid DKB390 YG showed significantly lower incidence of F. verticillioides contamination and lower fumonisin accumulation in the grains than the other hybrids. The hybrid Attack was the least susceptible to kernel rot incidence. Our data shows that delaying harvest for minimizing drying costs may increase the risk of mycotoxin contamination in maize in the tropics of Brazil. |
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Thesagro: |
Doença de Planta; Micotoxina; Podridão; Zea Mays. |
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Thesaurus Nal: |
Fusarium verticillioides; Stenocarpella maydis. |
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Categoria do assunto: |
H Saúde e Patologia |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/185678/1/Delaying-harvest.pdf
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Marc: |
LEADER 02172naa a2200301 a 4500
001 2099063
005 2019-02-04
008 2018 bl uuuu u00u1 u #d
024 7 $a10.1007/s40858-018-0234-0$2DOI
100 1 $aCOSTA, R. V. da
245 $aDelaying harvest for naturally drying maize grain increases the risk of kernel rot and fumonisin contamination$h[electronic resource]
260 $c2018
520 $aArtificial drying, although costly, ensures a safe storage and preserves post-harvest grain quality. Alternatively, a more costeffective measure is to delay harvest to promote natural drying, but this management may increase the risk of mycotoxigenic ear rot fungi contamination. The objective was to evaluate the effect of increasing maize harvest delay on fungal disease and fumonisin levels. Three maize hybrids (BRS1035, Attack and DKB390 YG) were sown in the field to study the effect of five harvest delays (15, 30, 45, 60 and 75 days) after the optimum date (18% grain moisture). There was a significant trend of increasing the incidence of kernel rot and total fumonisins in the grains when delaying harvest, but fungal incidence and mycotoxin contamination varied with the hybrid. The main fungi detected in the grain samples were Fusarium verticillioides and Stenocarpella maydis. The hybrid DKB390 YG showed significantly lower incidence of F. verticillioides contamination and lower fumonisin accumulation in the grains than the other hybrids. The hybrid Attack was the least susceptible to kernel rot incidence. Our data shows that delaying harvest for minimizing drying costs may increase the risk of mycotoxin contamination in maize in the tropics of Brazil.
650 $aFusarium verticillioides
650 $aStenocarpella maydis
650 $aDoença de Planta
650 $aMicotoxina
650 $aPodridão
650 $aZea Mays
700 1 $aQUEIROZ, V. A. V.
700 1 $aCOTA, L. V.
700 1 $aSILVA, D. D. da
700 1 $aLANZA, F. E.
700 1 $aALMEIDA, R. E. M. de
700 1 $aPEREIRA, A. A.
700 1 $aALVES, R. R.
700 1 $aCAMPOS, L. J. M.
773 $tTropical Plant Pathology$gv. 43, p. 452-459, 2018.
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Registro original: |
Embrapa Milho e Sorgo (CNPMS) |
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 | Acesso ao texto completo restrito à biblioteca da Embrapa Rondônia. Para informações adicionais entre em contato com cpafro.biblioteca@embrapa.br. |
Registro Completo
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Biblioteca(s): |
Embrapa Rondônia. |
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Data corrente: |
12/05/2021 |
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Data da última atualização: |
13/05/2021 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
A - 2 |
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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. |
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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. |
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Título: |
Uterine health and fertility of timed AI postpartum Nelore beef cows raised in the Amazon biome. |
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Ano de publicação: |
2021 |
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Fonte/Imprenta: |
Livestock Science, v. 249, 104528, July 2021. |
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ISSN: |
1871-1413 |
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DOI: |
https://doi.org/10.1016/j.livsci.2021.104528 |
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Idioma: |
Inglês |
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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 |
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Palavras-Chave: |
Citocina; Cytobrush; Inseminação artifical por tempo determinado; PMN cells; Timed artificial insemination (TAI); Uterine health. |
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Thesagro: |
Fertilidade Animal; Gado de Corte; Gado Nelore; Imunidade; Pós-Parto; Reprodução Animal; Sanidade Animal; Útero; Vaca de Corte. |
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Thesaurus NAL: |
Animal fertility; Animal reproduction; Beef cows; Cytokines; Immunity; Nellore; Postpartum period. |
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Categoria do assunto: |
G Melhoramento Genético |
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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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