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Registro Completo |
Biblioteca(s): |
Embrapa Amazônia Ocidental; Embrapa Meio-Norte; Embrapa Trigo. |
Data corrente: |
01/03/1993 |
Data da última atualização: |
12/09/2001 |
Autoria: |
ARAUJO, J. G. F. de. |
Título: |
A calagem. |
Ano de publicação: |
1973 |
Fonte/Imprenta: |
Vicosa: UFV, 1973. |
Páginas: |
5p. |
Série: |
(UFV. Circular, 2). |
Idioma: |
Português |
Conteúdo: |
Alguns materiais portadores de cálcio podem ser usados como "corretivos", enquanto outros como simples adubo. Entretanto, é muito difícil separar-se na prática o papel do cálcio como alimento de planta e sua função de corretivo do solo. |
Palavras-Chave: |
Corretivos; Difusão de Pesquisas Tecnológicas; Solos. |
Thesagro: |
Calagem; Corretivo; Solo. |
Categoria do assunto: |
-- |
Marc: |
LEADER 00707nam a2200205 a 4500 001 1062499 005 2001-09-12 008 1973 bl uuuu u0uu1 u #d 100 1 $aARAUJO, J. G. F. de 245 $aA calagem. 260 $aVicosa: UFV$c1973 300 $a5p. 490 $a(UFV. Circular, 2). 520 $aAlguns materiais portadores de cálcio podem ser usados como "corretivos", enquanto outros como simples adubo. Entretanto, é muito difícil separar-se na prática o papel do cálcio como alimento de planta e sua função de corretivo do solo. 650 $aCalagem 650 $aCorretivo 650 $aSolo 653 $aCorretivos 653 $aDifusão de Pesquisas Tecnológicas 653 $aSolos
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Embrapa Meio-Norte (CPAMN) |
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| Acesso ao texto completo restrito à biblioteca da Embrapa Caprinos e Ovinos. Para informações adicionais entre em contato com cnpc.biblioteca@embrapa.br. |
Registro Completo
Biblioteca(s): |
Embrapa Caprinos e Ovinos. |
Data corrente: |
19/10/2020 |
Data da última atualização: |
19/10/2020 |
Tipo da produção científica: |
Artigo em Periódico Indexado |
Circulação/Nível: |
A - 2 |
Autoria: |
SANTOS, V. M. B. dos; PINTO, P. H. N.; BALARO, M. F. A.; SANTOS, J. D. R.; TAIRA, A. R.; ESPIRITO SANTO, C. G. do; GONÇALVES, F. M.; FONSECA, J. F. da; BRANDÃO, F. Z. |
Afiliação: |
VANESSA M. B. DOS SANTOS, Universidade Federal Fluminense (UFF) - Niterói, RJ, Brazil; PEDRO HENRIQUE N. PINTO, Universidade Federal Fluminense (UFF) - Niterói, RJ, Brazil; MARIO FELIPE A. BALARO, Universidade Federal Fluminense (UFF) - Niterói, RJ, Brazil; JULIANA D. R. SANTOS, Universidade Federal Fluminense (UFF) - Niterói, RJ, Brazil; AUGUSTO R. TAIRA, Universidade Federal Fluminense (UFF) - Niterói, RJ, Brazil; CAROLINE G. DO ESPIRITO SANTO, Universidade Federal Fluminense (UFF) - Niterói, RJ, Brazil; FERNANDA M. GONÇALVES, Universidade Federal Fluminense (UFF) - Niterói, RJ, Brazil; JEFERSON FERREIRA DA FONSECA, CNPC; FELIPE Z. BRANDÃO, Universidade Federal Fluminense (UFF) - Niterói, RJ, Brazil. |
Título: |
Use of oxytocin to attain cervical dilation for transcervical embryo transfer in sheep. |
Ano de publicação: |
2020 |
Fonte/Imprenta: |
Reproduction in Domestic Animals, v. 55, n. 10, p. 1446-1454, Oct. 2020. |
DOI: |
https://doi.org/10.1111/rda.13795 |
Idioma: |
Inglês |
Conteúdo: |
Abstract: The aim of this work was to determine whether a cervical dilation protocol (CDP) composed of only oxytocin can be used to perform transcervical (non?surgical) embryo transfer in sheep (NSET) without affecting the viability of the corpus luteum (CL). Likewise, we evaluated whether a cervical transposing test with a Hegar dilator (CT Hegar test), performed at oestrous time, could be used to screen ewes for NSET (greater or lower chances to transpose the cervix). For that, oestrous and ovulation synchronization was performed in 25 Santa Inês ewes to induce the dioestrous condition. Animals went through the following CDP in a crossover design: E + OX, oestradiol benzoate (100 µg intravenously [IV]) and oxytocin (100 IU IV); OX, oxytocin (100 IU IV); and SAL, saline solution (IV). Using a Hegar dilator, cervical transposing attempts were performed at oestrous (D0) and dioestrous time (D8). The viability of the CL (morphology, luteal blood flow and progesterone values) was evaluated by ultrasonography (colour Doppler and B?mode) and by serum progesterone measurement from D7 to D13. The cervical transposing rate was lower for the SAL group (64%; 16/25; p < .05) and did not differ between the E + OX (88%; 22/25, p > .05) and OX (84%; 21/25, p > .05) groups. No treatment affected the CL viability. The CT Hegar test showed a high sensitivity (85.7%?93.3%), satisfactory accuracy (72%?84%), low false?negative rate (6.7%?14.6%), but high false?positive rate (46%?66.7%). In conclusion, a CDP protocol composed exclusively of oxytocin can lead to good cervical transposing rates and does not affect the viability of the CL. In addition, a screening test (CT Hegar) performed at oestrus can identify ewes for which cervical transposing will likely not occur at NSET. MenosAbstract: The aim of this work was to determine whether a cervical dilation protocol (CDP) composed of only oxytocin can be used to perform transcervical (non?surgical) embryo transfer in sheep (NSET) without affecting the viability of the corpus luteum (CL). Likewise, we evaluated whether a cervical transposing test with a Hegar dilator (CT Hegar test), performed at oestrous time, could be used to screen ewes for NSET (greater or lower chances to transpose the cervix). For that, oestrous and ovulation synchronization was performed in 25 Santa Inês ewes to induce the dioestrous condition. Animals went through the following CDP in a crossover design: E + OX, oestradiol benzoate (100 µg intravenously [IV]) and oxytocin (100 IU IV); OX, oxytocin (100 IU IV); and SAL, saline solution (IV). Using a Hegar dilator, cervical transposing attempts were performed at oestrous (D0) and dioestrous time (D8). The viability of the CL (morphology, luteal blood flow and progesterone values) was evaluated by ultrasonography (colour Doppler and B?mode) and by serum progesterone measurement from D7 to D13. The cervical transposing rate was lower for the SAL group (64%; 16/25; p < .05) and did not differ between the E + OX (88%; 22/25, p > .05) and OX (84%; 21/25, p > .05) groups. No treatment affected the CL viability. The CT Hegar test showed a high sensitivity (85.7%?93.3%), satisfactory accuracy (72%?84%), low false?negative rate (6.7%?14.6%), but high false?positive rate (46%?66.7%). In conc... Mostrar Tudo |
Palavras-Chave: |
Dilatation; Luteal phase. |
Thesagro: |
Ovelha; Ovino; Reprodução Animal; Transferência de Embrião. |
Thesaurus NAL: |
Animal reproduction; Embryo transfer; Oxytocin; Sheep. |
Categoria do assunto: |
L Ciência Animal e Produtos de Origem Animal |
Marc: |
LEADER 02824naa a2200349 a 4500 001 2125631 005 2020-10-19 008 2020 bl uuuu u00u1 u #d 024 7 $ahttps://doi.org/10.1111/rda.13795$2DOI 100 1 $aSANTOS, V. M. B. dos 245 $aUse of oxytocin to attain cervical dilation for transcervical embryo transfer in sheep.$h[electronic resource] 260 $c2020 520 $aAbstract: The aim of this work was to determine whether a cervical dilation protocol (CDP) composed of only oxytocin can be used to perform transcervical (non?surgical) embryo transfer in sheep (NSET) without affecting the viability of the corpus luteum (CL). Likewise, we evaluated whether a cervical transposing test with a Hegar dilator (CT Hegar test), performed at oestrous time, could be used to screen ewes for NSET (greater or lower chances to transpose the cervix). For that, oestrous and ovulation synchronization was performed in 25 Santa Inês ewes to induce the dioestrous condition. Animals went through the following CDP in a crossover design: E + OX, oestradiol benzoate (100 µg intravenously [IV]) and oxytocin (100 IU IV); OX, oxytocin (100 IU IV); and SAL, saline solution (IV). Using a Hegar dilator, cervical transposing attempts were performed at oestrous (D0) and dioestrous time (D8). The viability of the CL (morphology, luteal blood flow and progesterone values) was evaluated by ultrasonography (colour Doppler and B?mode) and by serum progesterone measurement from D7 to D13. The cervical transposing rate was lower for the SAL group (64%; 16/25; p < .05) and did not differ between the E + OX (88%; 22/25, p > .05) and OX (84%; 21/25, p > .05) groups. No treatment affected the CL viability. The CT Hegar test showed a high sensitivity (85.7%?93.3%), satisfactory accuracy (72%?84%), low false?negative rate (6.7%?14.6%), but high false?positive rate (46%?66.7%). In conclusion, a CDP protocol composed exclusively of oxytocin can lead to good cervical transposing rates and does not affect the viability of the CL. In addition, a screening test (CT Hegar) performed at oestrus can identify ewes for which cervical transposing will likely not occur at NSET. 650 $aAnimal reproduction 650 $aEmbryo transfer 650 $aOxytocin 650 $aSheep 650 $aOvelha 650 $aOvino 650 $aReprodução Animal 650 $aTransferência de Embrião 653 $aDilatation 653 $aLuteal phase 700 1 $aPINTO, P. H. N. 700 1 $aBALARO, M. F. A. 700 1 $aSANTOS, J. D. R. 700 1 $aTAIRA, A. R. 700 1 $aESPIRITO SANTO, C. G. do 700 1 $aGONÇALVES, F. M. 700 1 $aFONSECA, J. F. da 700 1 $aBRANDÃO, F. Z. 773 $tReproduction in Domestic Animals$gv. 55, n. 10, p. 1446-1454, Oct. 2020.
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