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Registro Completo |
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Biblioteca(s): |
Embrapa Instrumentação. |
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Data corrente: |
22/12/1999 |
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Data da última atualização: |
22/12/1999 |
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Autoria: |
NAIME, J. M.; CRESTANA, S.; CONCIANI, W.; SOARES, M. M. |
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Afiliação: |
EMBRAPA-CNPDIA; Escola Tecnica Federal de Mato Grosso; UFMT-Depto. Engenharia Civil. |
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Título: |
Portable CAT scanner applied to collapsible soil studies. |
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Ano de publicação: |
1996 |
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Fonte/Imprenta: |
In: INTERNATIONAL CONFERENCE ON PHYSICS AND INDUSTRIAL DEVELOPMENT: BRIDGING THE GAP, 2., July 1996, Belo Horizonte, MG. Abstracts... Belo Horizonte: UFMG, 1996. |
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Páginas: |
Ref.PB11. |
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Idioma: |
Inglês |
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Conteúdo: |
The soil collapse is causing huge losses to the grain procedures of Mato Grosso State. As a result of this phenomenon many silos are showing signals of sinking. The soil collapse means a sudden reduction of soil volume, when submitted to a stress, due to a rise on its soil moisture. The collapse occurs when the soil is non-saturated and its structure is metastable. The temporary stability of the soil can be checked out through the matrix potential and natural cements. In this work, computerized tomography (CT) technique was applied to measure the reduction of voids caused by the soil collapse. The equipment is a portable tomograph developed at the Instrumentation Center of EMBRAPA/CNPDIA-Sao Carlos, SP. The analysis were carried out in soil samples collected after the execution of load tests which simulates the silo building, in conditions of natural humidity and saturated soil. The CT scanner has the following characteristics: it can be carried to the field and the scanning mechanism is bipartite. The equipment can do scannings of soil monoliths and trees. It is constituted of a gamma ray source (137Cs), semiconductor detector (CdTe), mechanical system and microprocessed electronic circuit. The obtained results show that the influence of the collapse extends to only a few centimeters under the sitting element level of silo's foundation. The results mean important data for soil testing related to building construction and also for characterization and modeling how collapsible the soils are. MenosThe soil collapse is causing huge losses to the grain procedures of Mato Grosso State. As a result of this phenomenon many silos are showing signals of sinking. The soil collapse means a sudden reduction of soil volume, when submitted to a stress, due to a rise on its soil moisture. The collapse occurs when the soil is non-saturated and its structure is metastable. The temporary stability of the soil can be checked out through the matrix potential and natural cements. In this work, computerized tomography (CT) technique was applied to measure the reduction of voids caused by the soil collapse. The equipment is a portable tomograph developed at the Instrumentation Center of EMBRAPA/CNPDIA-Sao Carlos, SP. The analysis were carried out in soil samples collected after the execution of load tests which simulates the silo building, in conditions of natural humidity and saturated soil. The CT scanner has the following characteristics: it can be carried to the field and the scanning mechanism is bipartite. The equipment can do scannings of soil monoliths and trees. It is constituted of a gamma ray source (137Cs), semiconductor detector (CdTe), mechanical system and microprocessed electronic circuit. The obtained results show that the influence of the collapse extends to only a few centimeters under the sitting element level of silo's foundation. The results mean important data for soil testing related to building construction and also for characterization and modeling how collapsibl... Mostrar Tudo |
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Palavras-Chave: |
Colapso; Collapse; Estudo; Mato Grosso (estado); Portable CT scanner; Tomografo portatil. |
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Thesagro: |
Solo. |
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Thesaurus Nal: |
soil. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 02292naa a2200265 a 4500
001 1027048
005 1999-12-22
008 1996 bl --- 0-- u #d
100 1 $aNAIME, J. M.
245 $aPortable CAT scanner applied to collapsible soil studies.
260 $c1996
300 $aRef.PB11.
520 $aThe soil collapse is causing huge losses to the grain procedures of Mato Grosso State. As a result of this phenomenon many silos are showing signals of sinking. The soil collapse means a sudden reduction of soil volume, when submitted to a stress, due to a rise on its soil moisture. The collapse occurs when the soil is non-saturated and its structure is metastable. The temporary stability of the soil can be checked out through the matrix potential and natural cements. In this work, computerized tomography (CT) technique was applied to measure the reduction of voids caused by the soil collapse. The equipment is a portable tomograph developed at the Instrumentation Center of EMBRAPA/CNPDIA-Sao Carlos, SP. The analysis were carried out in soil samples collected after the execution of load tests which simulates the silo building, in conditions of natural humidity and saturated soil. The CT scanner has the following characteristics: it can be carried to the field and the scanning mechanism is bipartite. The equipment can do scannings of soil monoliths and trees. It is constituted of a gamma ray source (137Cs), semiconductor detector (CdTe), mechanical system and microprocessed electronic circuit. The obtained results show that the influence of the collapse extends to only a few centimeters under the sitting element level of silo's foundation. The results mean important data for soil testing related to building construction and also for characterization and modeling how collapsible the soils are.
650 $asoil
650 $aSolo
653 $aColapso
653 $aCollapse
653 $aEstudo
653 $aMato Grosso (estado)
653 $aPortable CT scanner
653 $aTomografo portatil
700 1 $aCRESTANA, S.
700 1 $aCONCIANI, W.
700 1 $aSOARES, M. M.
773 $tIn: INTERNATIONAL CONFERENCE ON PHYSICS AND INDUSTRIAL DEVELOPMENT: BRIDGING THE GAP, 2., July 1996, Belo Horizonte, MG. Abstracts... Belo Horizonte: UFMG, 1996.
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Registro original: |
Embrapa Instrumentação (CNPDIA) |
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 | Acesso ao texto completo restrito à biblioteca da Embrapa Gado de Leite. Para informações adicionais entre em contato com cnpgl.biblioteca@embrapa.br. |
Registro Completo
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Biblioteca(s): |
Embrapa Caprinos e Ovinos; Embrapa Gado de Leite. |
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Data corrente: |
17/02/2020 |
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Data da última atualização: |
19/08/2021 |
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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: |
FIGUEIRA, L. M.; ALVES, N. G.; SOUZA-FABJAN, J. M. G.; OLIVEIRA, M. E. F.; LIMA, R. R.; SOUZA, G. N. de; FONSECA, J. F. da. |
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Afiliação: |
LUCAS MACHADO FIGUEIRA, Universidade Federal de Lavras; NADJA GOMES ALVES, Universidade Federal de Lavras; JOANNA MARIA GONÇALVES SOUZA-FABJAN, Universidade Federal Fluminense Federal; MARIA EMILIA FRANCO OLIVEIRA, Universidade Estadual Paulista "Júlio de Mesquita Filho"; RENATO RIBEIRO LIMA, Universidade Federal de Lavras; GUILHERME NUNES DE SOUZA, CNPGL; JEFERSON FERREIRA DA FONSECA, CNPC. |
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Título: |
Preovulatory follicular dynamics, ovulatory response and embryo yield in Lacaune ewes subjected to synchronous estrus induction protocols and non-surgical embryo recovery. |
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Ano de publicação: |
2020 |
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Fonte/Imprenta: |
Theriogenology, v. 145, p. 238-246, 2020. |
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DOI: |
https://doi.org/10.1016/j.theriogenology.2019.11.004 |
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Idioma: |
Inglês |
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Conteúdo: |
Abstract: The objective of this study was to assess the effect of the duration of progesterone-based estrus induction protocols on preovulatory follicular dynamics, ovulatory response, and embryo yield after non-surgical embryo recovery (NSER) in Lacaune ewes. Females received acetate medroxyprogesterone intravaginal sponges for six (G-6; n = 14) or nine (G-9; n = 14) days plus d-cloprostenol and eCG 24 h before sponge removal (Day 0). Preovulatory follicular dynamics and the luteal characteristics are evaluated by B-mode and Color-Doppler ultrasonography. NSER was performed five to six days after ovulation. The estrous behavior rate was 85.7% for both groups, and the percentage of ewes that ovulated was 92.9% in G-6 and 100% in G-9. The day of wave emergence (relative to Day 0) did not differ (P > 0.05) between G-6 (-3.0 ± 0.5) and G-9 (-4.2 ± 0.5). The number of follicles of size 4.1-5.0 mm was higher (P < 0.05) in G-9 (1.4 ± 0.2) compared to G-6 (0.8 ± 0.2) during the Days -4 to 0. At NSER, the transcervical penetration rate was 95.2% (20/21) and its duration time was lower (P < 0.05) in G-9 (3.4 ± 0.6 min) than in G-6 (7.2 ± 1.3 min). The number of ovulations and viable embryos was higher (P < 0.05) in G-9 (2.9 ± 0.3 and 1.3 ± 0.4, respectively) than in G-6 (1.9 ± 0.3 and 0.4 ± 0.2, respectively). In conclusion, the 9-day protocol promoted higher ovulation rate and embryo yield; moreover, the cervical dilation treatment allowed NSER in a high percentage of Lacaune ewes. |
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Palavras-Chave: |
Cervical dilation; Induced ovulation; Ovino leiteiro; Resposta ovulatória; Transcervical embryo recovery; Uterine flushing. |
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Thesagro: |
Ciclo Estral; Indução; Ovelha; Ovulação; Reprodução Animal. |
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Thesaurus NAL: |
Animal reproduction; Brazil; Dairy sheep; Estrous cycle; Estrus synchronization; Ewes. |
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Categoria do assunto: |
L Ciência Animal e Produtos de Origem Animal |
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Marc: |
LEADER 02781naa a2200409 a 4500
001 2133348
005 2021-08-19
008 2020 bl uuuu u00u1 u #d
024 7 $ahttps://doi.org/10.1016/j.theriogenology.2019.11.004$2DOI
100 1 $aFIGUEIRA, L. M.
245 $aPreovulatory follicular dynamics, ovulatory response and embryo yield in Lacaune ewes subjected to synchronous estrus induction protocols and non-surgical embryo recovery.$h[electronic resource]
260 $c2020
520 $aAbstract: The objective of this study was to assess the effect of the duration of progesterone-based estrus induction protocols on preovulatory follicular dynamics, ovulatory response, and embryo yield after non-surgical embryo recovery (NSER) in Lacaune ewes. Females received acetate medroxyprogesterone intravaginal sponges for six (G-6; n = 14) or nine (G-9; n = 14) days plus d-cloprostenol and eCG 24 h before sponge removal (Day 0). Preovulatory follicular dynamics and the luteal characteristics are evaluated by B-mode and Color-Doppler ultrasonography. NSER was performed five to six days after ovulation. The estrous behavior rate was 85.7% for both groups, and the percentage of ewes that ovulated was 92.9% in G-6 and 100% in G-9. The day of wave emergence (relative to Day 0) did not differ (P > 0.05) between G-6 (-3.0 ± 0.5) and G-9 (-4.2 ± 0.5). The number of follicles of size 4.1-5.0 mm was higher (P < 0.05) in G-9 (1.4 ± 0.2) compared to G-6 (0.8 ± 0.2) during the Days -4 to 0. At NSER, the transcervical penetration rate was 95.2% (20/21) and its duration time was lower (P < 0.05) in G-9 (3.4 ± 0.6 min) than in G-6 (7.2 ± 1.3 min). The number of ovulations and viable embryos was higher (P < 0.05) in G-9 (2.9 ± 0.3 and 1.3 ± 0.4, respectively) than in G-6 (1.9 ± 0.3 and 0.4 ± 0.2, respectively). In conclusion, the 9-day protocol promoted higher ovulation rate and embryo yield; moreover, the cervical dilation treatment allowed NSER in a high percentage of Lacaune ewes.
650 $aAnimal reproduction
650 $aBrazil
650 $aDairy sheep
650 $aEstrous cycle
650 $aEstrus synchronization
650 $aEwes
650 $aCiclo Estral
650 $aIndução
650 $aOvelha
650 $aOvulação
650 $aReprodução Animal
653 $aCervical dilation
653 $aInduced ovulation
653 $aOvino leiteiro
653 $aResposta ovulatória
653 $aTranscervical embryo recovery
653 $aUterine flushing
700 1 $aALVES, N. G.
700 1 $aSOUZA-FABJAN, J. M. G.
700 1 $aOLIVEIRA, M. E. F.
700 1 $aLIMA, R. R.
700 1 $aSOUZA, G. N. de
700 1 $aFONSECA, J. F. da
773 $tTheriogenology$gv. 145, p. 238-246, 2020.
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Embrapa Gado de Leite (CNPGL) |
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