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Registro Completo |
Biblioteca(s): |
Embrapa Pecuária Sudeste. |
Data corrente: |
10/01/2020 |
Data da última atualização: |
13/03/2023 |
Tipo da produção científica: |
Artigo em Periódico Indexado |
Autoria: |
CRUZ, C. C. T. da; PEREIRA, E. I.; SATO, P. S.; GUIMARÃES, G. G. F.; SOUZA, G. B. de; BERNARDI, A. C. de C.; OLIVEIRA, C. R. de. |
Afiliação: |
Camila Conceição Tomé da Cruz, UFSCar; Elaine Inácio Pereira, UFSCar; Patrícia Suemi Sato, UFSCar; Gelton Geraldo Fernandes Guimarães, Empresa de Pesquisa Agropecuária e Extensão Rural de Santa Catarina; GILBERTO BATISTA DE SOUZA, CPPSE; ALBERTO CARLOS DE CAMPOS BERNARDI, CPPSE; CAUE RIBEIRO DE OLIVEIRA, CNPDIA. |
Título: |
Analysis of NH3-N slow release systems for fiber digestibility of low-quality forage: in vitro approach. |
Ano de publicação: |
2020 |
Fonte/Imprenta: |
Scientia Agricola, v. 77, n. 5, e20180005, dec. 2020. |
ISSN: |
1678-992X |
DOI: |
http://dx.doi.org/10.1590/1678-992x-2018-0383 |
Idioma: |
Português |
Conteúdo: |
Urea is a common non-protein supplement used in ruminant feed; however, excessive consumption may lead to poisoning by NH3. Although the slow release of urea into the rumen has shown to be an essential aspect for ruminant feed, to date only a few studies have addressed this matter. In this study we examined the influence of five different NH3-N slow release systems based on clay-urea nanocomposites on the fiber digestibility of low-quality forage (sugarcane straw) in vitro. Physical properties of nanocomposites were evaluated and their effects on digestibility were tested in vitro using pristine urea as a positive control (level of 1 % of DM of sugarcane straw sample) and sugarcane (with no additives) as a negative control. Ammonia release and digestibility were evaluated at 12, 24, 36, 48, 72 and 96-h. Generally, all nanocomposites increased (p < 0.05) digestibility of fiber over control under all the conditions stipulated, but the samples with hydrogel content were more expressive. We concluded that an ideal release rate and optimum environment for microbial synthesis are necessary to maximize the digestion of sugarcane. |
Palavras-Chave: |
Non protein nitrogen; Ruminants feed; Slow release urea. |
Categoria do assunto: |
X Pesquisa, Tecnologia e Engenharia |
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/208525/1/Analysis-NH3-N-Slow.pdf
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Marc: |
LEADER 01946naa a2200253 a 4500 001 2118559 005 2023-03-13 008 2020 bl uuuu u00u1 u #d 022 $a1678-992X 024 7 $ahttp://dx.doi.org/10.1590/1678-992x-2018-0383$2DOI 100 1 $aCRUZ, C. C. T. da 245 $aAnalysis of NH3-N slow release systems for fiber digestibility of low-quality forage$bin vitro approach.$h[electronic resource] 260 $c2020 520 $aUrea is a common non-protein supplement used in ruminant feed; however, excessive consumption may lead to poisoning by NH3. Although the slow release of urea into the rumen has shown to be an essential aspect for ruminant feed, to date only a few studies have addressed this matter. In this study we examined the influence of five different NH3-N slow release systems based on clay-urea nanocomposites on the fiber digestibility of low-quality forage (sugarcane straw) in vitro. Physical properties of nanocomposites were evaluated and their effects on digestibility were tested in vitro using pristine urea as a positive control (level of 1 % of DM of sugarcane straw sample) and sugarcane (with no additives) as a negative control. Ammonia release and digestibility were evaluated at 12, 24, 36, 48, 72 and 96-h. Generally, all nanocomposites increased (p < 0.05) digestibility of fiber over control under all the conditions stipulated, but the samples with hydrogel content were more expressive. We concluded that an ideal release rate and optimum environment for microbial synthesis are necessary to maximize the digestion of sugarcane. 653 $aNon protein nitrogen 653 $aRuminants feed 653 $aSlow release urea 700 1 $aPEREIRA, E. I. 700 1 $aSATO, P. S. 700 1 $aGUIMARÃES, G. G. F. 700 1 $aSOUZA, G. B. de 700 1 $aBERNARDI, A. C. de C. 700 1 $aOLIVEIRA, C. R. de 773 $tScientia Agricola$gv. 77, n. 5, e20180005, dec. 2020.
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Registro original: |
Embrapa Pecuária Sudeste (CPPSE) |
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Biblioteca |
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Origem |
Tipo/Formato |
Classificação |
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Registro |
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| Acesso ao texto completo restrito à biblioteca da Embrapa Hortaliças. Para informações adicionais entre em contato com cnph.biblioteca@embrapa.br. |
Registro Completo
Biblioteca(s): |
Embrapa Hortaliças. |
Data corrente: |
03/05/2000 |
Data da última atualização: |
03/05/2000 |
Autoria: |
MAROUELLI, W. A. |
Afiliação: |
EMBRAPA-CNPH, Brasilia, DF. |
Título: |
Aspectos biologicos e sanitarios da agua para irrigacao. |
Ano de publicação: |
1987 |
Fonte/Imprenta: |
Item, Brasilia, n.31, p.28-30, dez. 1987. |
Idioma: |
Português |
Palavras-Chave: |
Contamination; Diseases; Fungus; Polution; Verme. |
Thesagro: |
Água; Bactéria; Contaminação; Doença; Fungo; Hortaliça; Irrigação; Planta Aquatica; Protozoário; Qualidade da Água; Vírus. |
Thesaurus NAL: |
aquatic plants; irrigation; vegetables; water; water quality. |
Categoria do assunto: |
-- |
Marc: |
LEADER 00868naa a2200361 a 4500 001 1768512 005 2000-05-03 008 1987 bl uuuu u00u1 u #d 100 1 $aMAROUELLI, W. A. 245 $aAspectos biologicos e sanitarios da agua para irrigacao. 260 $c1987 650 $aaquatic plants 650 $airrigation 650 $avegetables 650 $awater 650 $awater quality 650 $aÁgua 650 $aBactéria 650 $aContaminação 650 $aDoença 650 $aFungo 650 $aHortaliça 650 $aIrrigação 650 $aPlanta Aquatica 650 $aProtozoário 650 $aQualidade da Água 650 $aVírus 653 $aContamination 653 $aDiseases 653 $aFungus 653 $aPolution 653 $aVerme 773 $tItem, Brasilia$gn.31, p.28-30, dez. 1987.
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