| |
|
|
|
Registro Completo |
|
Biblioteca(s): |
Embrapa Amazônia Oriental. |
|
Data corrente: |
25/07/2023 |
|
Data da última atualização: |
25/07/2023 |
|
Tipo da produção científica: |
Artigo em Periódico Indexado |
|
Autoria: |
DANTAS, R. C. R.; PINHEIRO, H. A.; BRASIL, E. C.; LEMOS, O. F. de; BOTH, J. P. C. L.; ARAUJO, S. M. B.; LIMA JUNIOR, J. A. de. |
|
Afiliação: |
RUBIA CARLA RIBEIRO DANTAS, UNIVERSIDADE FEDERAL RURAL DA AMAZÔNIA; HUGO ALVES PINHEIRO, UNIVERSIDADE FEDERAL RURAL DA AMAZÔNIA; EDILSON CARVALHO BRASIL, CPATU; ORIEL FILGUEIRA DE LEMOS, CPATU; JOAO PAULO CASTANHEIRA LIMA BOTH, CPATU; SONIA MARIA BOTELHO ARAUJO, CPATU; JOAQUIM ALVES DE LIMA JUNIOR, UNIVERSIDADE FEDERAL RURAL DA AMAZÔNIA. |
|
Título: |
Nitrogen effects on leaf gas exchange, vegetative growth and yield of black pepper plants using Gliricidia sepium as living support. |
|
Ano de publicação: |
2023 |
|
Fonte/Imprenta: |
African Journal of Agricultural Research, v. 19, n. 2, p. 139-150, Feb. 2023. |
|
DOI: |
https://doi.org/10.5897/AJAR2022.16207 |
|
Idioma: |
Inglês |
|
Conteúdo: |
For the implantation of one hectare of black pepper (Piper nigrum), about 25 to 30 trees are removed from the Amazon Forest to produce tutors for black pepper. As an alternative to the dead wooden stake (WS), there is sustainable cultivation of black pepper with tree species, with the living supports (LS) of gliricídia (Gliricidia sepium L.). However, there is inadequate technical information on the effect of black pepper cultivation with tree species on the growth, physiology, and production of the culture. Therefore, the objective of this study is to evaluate the vegetative growth, physiology, and production of black pepper, cultivated in a LS subjected to doses of nitrogen (N). The experiment was carried in a randomized design blocks, in split plots, with three replications in a field. The plots consisted of two tutors (dead tutor and live tutor of G. sepium) and the subplots consisted of increasing doses of N (10, 20, 40 and 60g N plant-1). The results indicated that black pepper plants in WS stand out in terms of initial growth; however, at the end of the first year of black pepper cultivation with LS tends to present a vegetative growth slightly like the cultivation with a WS. The production of green pepper was higher in cultivation with G. sepium, while in terms of dry pepper there was no distinction between the tutors, with only N doses affected, which was estimated at 37 g N plant-1 to obtain the highest productivity of dry pepper. |
|
Palavras-Chave: |
Competição de nitrogênio; Crescimento vegetativo; Rendimento de grãos. |
|
Thesagro: |
Pimenta do Reino. |
|
Thesaurus Nal: |
Black pepper; Grain yield; Vegetative growth. |
|
Categoria do assunto: |
F Plantas e Produtos de Origem Vegetal |
|
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/doc/1155275/1/Nitrogen-effects-on-leaf-gas-exchange.pdf
|
|
Marc: |
LEADER 02427naa a2200289 a 4500
001 2155275
005 2023-07-25
008 2023 bl uuuu u00u1 u #d
024 7 $ahttps://doi.org/10.5897/AJAR2022.16207$2DOI
100 1 $aDANTAS, R. C. R.
245 $aNitrogen effects on leaf gas exchange, vegetative growth and yield of black pepper plants using Gliricidia sepium as living support.$h[electronic resource]
260 $c2023
520 $aFor the implantation of one hectare of black pepper (Piper nigrum), about 25 to 30 trees are removed from the Amazon Forest to produce tutors for black pepper. As an alternative to the dead wooden stake (WS), there is sustainable cultivation of black pepper with tree species, with the living supports (LS) of gliricídia (Gliricidia sepium L.). However, there is inadequate technical information on the effect of black pepper cultivation with tree species on the growth, physiology, and production of the culture. Therefore, the objective of this study is to evaluate the vegetative growth, physiology, and production of black pepper, cultivated in a LS subjected to doses of nitrogen (N). The experiment was carried in a randomized design blocks, in split plots, with three replications in a field. The plots consisted of two tutors (dead tutor and live tutor of G. sepium) and the subplots consisted of increasing doses of N (10, 20, 40 and 60g N plant-1). The results indicated that black pepper plants in WS stand out in terms of initial growth; however, at the end of the first year of black pepper cultivation with LS tends to present a vegetative growth slightly like the cultivation with a WS. The production of green pepper was higher in cultivation with G. sepium, while in terms of dry pepper there was no distinction between the tutors, with only N doses affected, which was estimated at 37 g N plant-1 to obtain the highest productivity of dry pepper.
650 $aBlack pepper
650 $aGrain yield
650 $aVegetative growth
650 $aPimenta do Reino
653 $aCompetição de nitrogênio
653 $aCrescimento vegetativo
653 $aRendimento de grãos
700 1 $aPINHEIRO, H. A.
700 1 $aBRASIL, E. C.
700 1 $aLEMOS, O. F. de
700 1 $aBOTH, J. P. C. L.
700 1 $aARAUJO, S. M. B.
700 1 $aLIMA JUNIOR, J. A. de
773 $tAfrican Journal of Agricultural Research$gv. 19, n. 2, p. 139-150, Feb. 2023.
Download
Esconder MarcMostrar Marc Completo |
|
Registro original: |
Embrapa Amazônia Oriental (CPATU) |
|
|
Biblioteca |
ID |
Origem |
Tipo/Formato |
Classificação |
Cutter |
Registro |
Volume |
Status |
URL |
Voltar
|
|
|
Registro Completo
|
Biblioteca(s): |
Embrapa Suínos e Aves. |
|
Data corrente: |
21/02/2022 |
|
Data da última atualização: |
08/04/2022 |
|
Tipo da produção científica: |
Artigo em Periódico Indexado |
|
Circulação/Nível: |
B - 1 |
|
Autoria: |
BARON, L. F.; FONSECA, F. M. da; MACIAG, S. S.; BELLAVER, F. A. V.; IBELLI, A. M. G.; MORES, M. A. Z.; ALMEIDA, G. F. de; GUTERRES, S. S.; BASTOS, A. P. A.; PAESE, K. |
|
Afiliação: |
LANA FLÁVIA BARON, UFRGS; FRANCISCO NOE DA FONSECA, CNPSA; SHAIANA SALETE MACIAG, Unicentro/Guarapuava; FRANCIANA A VOLPATO BELLAVER, IFC/Concórdia; ADRIANA MERCIA GUARATINI IBELLI, CNPSA; MARCOS ANTONIO ZANELLA MORES, CNPSA; GABRYELLE FURTADO DE ALMEIDA, UFRGS; SILVIA STANIÇUASKI GUTERRES, UFRGS; ANA PAULA ALMEIDA BASTOS, CNPSA; KARINA PAESE, UFRGS. |
|
Título: |
Toltrazuril-loaded polymeric nanocapsules as a promising approach for the preventive control of coccidiosis in poultry. |
|
Ano de publicação: |
2022 |
|
Fonte/Imprenta: |
Pharmaceutics, v. 14, n. 392, 2022. |
|
DOI: |
https://doi.org/10.3390/pharmaceutics14020392 |
|
Idioma: |
Inglês |
|
Conteúdo: |
Abstract: Coccidiosis is a disease caused by intracellular protozoan parasites of the genus Eimeria that affect the intestinal tract of poultry. However, strain resistance and drug residue in the carcass have drawn the attention of the productive sector. The nanotechnology can improve the biological effect of drugs, reducing of administered doses and toxic effects. Due to this, toltrazuril-load polymeric nanoparticles based on Eudragit® S100 (NCt) or poly-?-caprolactone (LNCt) were developed to prevent coccidiosis in broilers. Nanoformulations were produced and showed homogeneous particle diameter distribution in the nanometer range (z-average and D (4.3) < 200 nm), negative zeta potential (90%. Cell viability assays using avian fibroblasts showed that LNCt presented no relevant toxicity up to 72 h. LNCt was then prophylactically administrated to chicken followed by challenge with Eimeria oocysts. The evaluation of the small intestine and cecum showed that the treatment with LNCt (3.5 mg/kg/day) in drinking water reduced the lesion scores and oocysts excretion, similar to the reference medicine containing toltrazuril (Baycox®, 7 mg/kg/day). The current study shows the potential protective use of nanoencapsulating anticoccidial drugs as a promising approach for the control of coccidiosis in poultry. Resumo: A coccidiose é uma doença causada por parasitas protozoários intracelulares do gênero Eimeria que acometem o trato intestinal de aves. No entanto, a resistência à cepa e o resíduo de drogas na carcaça têm chamado a atenção do setor produtivo. A nanotecnologia pode melhorar o efeito biológico dos fármacos, reduzindo as doses administradas e os efeitos tóxicos. Devido a isso, nanopartículas poliméricas com carga de toltrazuril à base de Eudragit ® S100 (NCt) ou poli-ε-caprolactona (LNCt) foram desenvolvidas para prevenir a coccidiose em frangos de corte. Nanoformulações foram produzidas e apresentaram distribuição homogênea do diâmetro das partículas na faixa nanométrica ( z-média e D (4,3) < 200 nm), potencial zeta negativo (<-8,93 mV), teor de droga ~ 100% e eficiência de encapsulamento > 90%. Ensaios de viabilidade celular utilizando fibroblastos de aves mostraram que LNCt não apresentou toxicidade relevante até 72 h. LNCt foi então administrado profilaticamente ao frango seguido de desafio com oocistos de Eimeria . A avaliação do intestino delgado e ceco mostrou que o tratamento com LNCt (3,5 mg/kg/dia) na água de beber reduziu os escores de lesão e a excreção de oocistos, semelhante ao medicamento de referência contendo toltrazuril (Baycox ® , 7 mg/kg/dia ). O presente estudo mostra o potencial uso protetor de drogas anticoccidianas nanoencapsuladas como uma abordagem promissora para o controle da coccidiose em aves. MenosAbstract: Coccidiosis is a disease caused by intracellular protozoan parasites of the genus Eimeria that affect the intestinal tract of poultry. However, strain resistance and drug residue in the carcass have drawn the attention of the productive sector. The nanotechnology can improve the biological effect of drugs, reducing of administered doses and toxic effects. Due to this, toltrazuril-load polymeric nanoparticles based on Eudragit® S100 (NCt) or poly-?-caprolactone (LNCt) were developed to prevent coccidiosis in broilers. Nanoformulations were produced and showed homogeneous particle diameter distribution in the nanometer range (z-average and D (4.3) < 200 nm), negative zeta potential (90%. Cell viability assays using avian fibroblasts showed that LNCt presented no relevant toxicity up to 72 h. LNCt was then prophylactically administrated to chicken followed by challenge with Eimeria oocysts. The evaluation of the small intestine and cecum showed that the treatment with LNCt (3.5 mg/kg/day) in drinking water reduced the lesion scores and oocysts excretion, similar to the reference medicine containing toltrazuril (Baycox®, 7 mg/kg/day). The current study shows the potential protective use of nanoencapsulating anticoccidial drugs as a promising approach for the control of coccidiosis in poultry. Resumo: A coccidiose é uma doença causada por parasitas protozoários intracelulares do gênero Eimeria que acometem o ... Mostrar Tudo |
|
Palavras-Chave: |
Avian coccidiosis; Coccidiose aviária; Eimeria spp; Eudragit® S100; Nanocápsulas poliméricas; Poly-E-caprolactone; Polymeric nanocapsules. |
|
Thesaurus NAL: |
Toltrazuril. |
|
Categoria do assunto: |
-- |
|
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/231608/1/final9854.pdf
|
|
Marc: |
LEADER 03923naa a2200337 a 4500
001 2140277
005 2022-04-08
008 2022 bl uuuu u00u1 u #d
024 7 $ahttps://doi.org/10.3390/pharmaceutics14020392$2DOI
100 1 $aBARON, L. F.
245 $aToltrazuril-loaded polymeric nanocapsules as a promising approach for the preventive control of coccidiosis in poultry.$h[electronic resource]
260 $c2022
520 $aAbstract: Coccidiosis is a disease caused by intracellular protozoan parasites of the genus Eimeria that affect the intestinal tract of poultry. However, strain resistance and drug residue in the carcass have drawn the attention of the productive sector. The nanotechnology can improve the biological effect of drugs, reducing of administered doses and toxic effects. Due to this, toltrazuril-load polymeric nanoparticles based on Eudragit® S100 (NCt) or poly-?-caprolactone (LNCt) were developed to prevent coccidiosis in broilers. Nanoformulations were produced and showed homogeneous particle diameter distribution in the nanometer range (z-average and D (4.3) < 200 nm), negative zeta potential (<?8.93 mV), drug content ~100%, and encapsulation efficiency >90%. Cell viability assays using avian fibroblasts showed that LNCt presented no relevant toxicity up to 72 h. LNCt was then prophylactically administrated to chicken followed by challenge with Eimeria oocysts. The evaluation of the small intestine and cecum showed that the treatment with LNCt (3.5 mg/kg/day) in drinking water reduced the lesion scores and oocysts excretion, similar to the reference medicine containing toltrazuril (Baycox®, 7 mg/kg/day). The current study shows the potential protective use of nanoencapsulating anticoccidial drugs as a promising approach for the control of coccidiosis in poultry. Resumo: A coccidiose é uma doença causada por parasitas protozoários intracelulares do gênero Eimeria que acometem o trato intestinal de aves. No entanto, a resistência à cepa e o resíduo de drogas na carcaça têm chamado a atenção do setor produtivo. A nanotecnologia pode melhorar o efeito biológico dos fármacos, reduzindo as doses administradas e os efeitos tóxicos. Devido a isso, nanopartículas poliméricas com carga de toltrazuril à base de Eudragit ® S100 (NCt) ou poli-ε-caprolactona (LNCt) foram desenvolvidas para prevenir a coccidiose em frangos de corte. Nanoformulações foram produzidas e apresentaram distribuição homogênea do diâmetro das partículas na faixa nanométrica ( z-média e D (4,3) < 200 nm), potencial zeta negativo (<-8,93 mV), teor de droga ~ 100% e eficiência de encapsulamento > 90%. Ensaios de viabilidade celular utilizando fibroblastos de aves mostraram que LNCt não apresentou toxicidade relevante até 72 h. LNCt foi então administrado profilaticamente ao frango seguido de desafio com oocistos de Eimeria . A avaliação do intestino delgado e ceco mostrou que o tratamento com LNCt (3,5 mg/kg/dia) na água de beber reduziu os escores de lesão e a excreção de oocistos, semelhante ao medicamento de referência contendo toltrazuril (Baycox ® , 7 mg/kg/dia ). O presente estudo mostra o potencial uso protetor de drogas anticoccidianas nanoencapsuladas como uma abordagem promissora para o controle da coccidiose em aves.
650 $aToltrazuril
653 $aAvian coccidiosis
653 $aCoccidiose aviária
653 $aEimeria spp
653 $aEudragit® S100
653 $aNanocápsulas poliméricas
653 $aPoly-E-caprolactone
653 $aPolymeric nanocapsules
700 1 $aFONSECA, F. M. da
700 1 $aMACIAG, S. S.
700 1 $aBELLAVER, F. A. V.
700 1 $aIBELLI, A. M. G.
700 1 $aMORES, M. A. Z.
700 1 $aALMEIDA, G. F. de
700 1 $aGUTERRES, S. S.
700 1 $aBASTOS, A. P. A.
700 1 $aPAESE, K.
773 $tPharmaceutics$gv. 14, n. 392, 2022.
Download
Esconder MarcMostrar Marc Completo |
|
Registro original: |
Embrapa Suínos e Aves (CNPSA) |
|
|
Biblioteca |
ID |
Origem |
Tipo/Formato |
Classificação |
Cutter |
Registro |
Volume |
Status |
Fechar
|
| Nenhum registro encontrado para a expressão de busca informada. |
|
|
