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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. |
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Registro Completo |
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Biblioteca(s): |
Embrapa Gado de Leite. |
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Data corrente: |
16/02/2017 |
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Data da última atualização: |
30/01/2023 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
TERRY, S. A.; RIBEIRO, R. S.; FREITAS, D. S.; DELAROTA, G. D.; PEREIRA, L. G. R.; TOMICH, T. R.; MAURÍCIO, R. M.; CHAVES, A. V. |
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Afiliação: |
S. A. Terry, Faculty of Veterinary Science, Sydney; R. S. Ribeiro, UFSJ; D. S. Freitas, UFSJ; G. D. Delarota, UFSJ; LUIZ GUSTAVO RIBEIRO PEREIRA, CNPGL; THIERRY RIBEIRO TOMICH, CNPGL; R. M. Maurício, UFSJ; A. V. Chaves, Faculty of Veterinary Science, Sydney. |
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Título: |
Effects of Tithonia diversifolia on in vitro methane production and ruminal fermentation characteristics. |
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Ano de publicação: |
2016 |
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Fonte/Imprenta: |
Animal Production Science, v. 56, n. 2/3, p. 437-441, 2016. |
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Idioma: |
Inglês |
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Conteúdo: |
Abstract The present study examined the effects of Tithonia diversifolia on in vitro methane (CH4) production and ruminal fermentation characteristics. The experiment was conducted as a completely randomised design (CRD) using a control (0% T. diversifolia) and three treatment groups with different concentrations (6.9%, 15.2%, 29.2%) of T. diversifolia, which replaced up to 15.2% and 14% dry matter (DM) of fresh sugarcane and concentrates, respectively. Ruminal fluid was obtained from two ruminally cannulated non-lactating Holstein · Zebu heifers maintained on a diet consisting of T. diversifolia, fresh sugarcane and 4 kg of concentrates. The inclusion of T. diversifolia had no effect (P0.15) on cumulative gas production (mL, mL/g incubated DM, mL/g digested DM) or in vitro DM disappearance (%). Carbon dioxide (%, mL, mL/g incubated DM) linearly decreased (P 0.001) and CH4 (%, mL, mL/g incubated DM) quadratically increased (P 0.01) with increasing concentrations of T. diversifolia replacing fresh sugarcane and concentrates. The total volatile fatty acids (mM) and acetate (A) proportion of total volatile fatty acids (mmol/100 mmol) linearly increased (P < 0.01) with the increasing inclusion of T. diversifolia. Butyrate (mmol/100 mmol) increased quadratically (P 0.02), while propionate (P; mmol/100 mmol) decreased quadratically (P < 0.02). The A : P ratio increased linearly (P < 0.0001) with increasing amounts of T. diversifolia in the diet. These results indicated that increasing the amount of Tithonia diversifolia in the substrate DM increased the A : P ratio, which resulted in a six-fold increase of CH4 production when fresh sugarcane and concentrates were replaced at up to 15.2% and 14% (DM basis), respectively. MenosAbstract The present study examined the effects of Tithonia diversifolia on in vitro methane (CH4) production and ruminal fermentation characteristics. The experiment was conducted as a completely randomised design (CRD) using a control (0% T. diversifolia) and three treatment groups with different concentrations (6.9%, 15.2%, 29.2%) of T. diversifolia, which replaced up to 15.2% and 14% dry matter (DM) of fresh sugarcane and concentrates, respectively. Ruminal fluid was obtained from two ruminally cannulated non-lactating Holstein · Zebu heifers maintained on a diet consisting of T. diversifolia, fresh sugarcane and 4 kg of concentrates. The inclusion of T. diversifolia had no effect (P0.15) on cumulative gas production (mL, mL/g incubated DM, mL/g digested DM) or in vitro DM disappearance (%). Carbon dioxide (%, mL, mL/g incubated DM) linearly decreased (P 0.001) and CH4 (%, mL, mL/g incubated DM) quadratically increased (P 0.01) with increasing concentrations of T. diversifolia replacing fresh sugarcane and concentrates. The total volatile fatty acids (mM) and acetate (A) proportion of total volatile fatty acids (mmol/100 mmol) linearly increased (P < 0.01) with the increasing inclusion of T. diversifolia. Butyrate (mmol/100 mmol) increased quadratically (P 0.02), while propionate (P; mmol/100 mmol) decreased quadratically (P < 0.02). The A : P ratio increased linearly (P < 0.0001) with increasing amounts of T. diversifolia in the diet. These results indicated that increa... Mostrar Tudo |
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Palavras-Chave: |
Dairy cow; Shrub; Supplementation. |
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Thesaurus Nal: |
volatile fatty acids. |
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Categoria do assunto: |
L Ciência Animal e Produtos de Origem Animal |
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Marc: |
LEADER 02498naa a2200253 a 4500
001 2064413
005 2023-01-30
008 2016 bl uuuu u00u1 u #d
100 1 $aTERRY, S. A.
245 $aEffects of Tithonia diversifolia on in vitro methane production and ruminal fermentation characteristics.$h[electronic resource]
260 $c2016
520 $aAbstract The present study examined the effects of Tithonia diversifolia on in vitro methane (CH4) production and ruminal fermentation characteristics. The experiment was conducted as a completely randomised design (CRD) using a control (0% T. diversifolia) and three treatment groups with different concentrations (6.9%, 15.2%, 29.2%) of T. diversifolia, which replaced up to 15.2% and 14% dry matter (DM) of fresh sugarcane and concentrates, respectively. Ruminal fluid was obtained from two ruminally cannulated non-lactating Holstein · Zebu heifers maintained on a diet consisting of T. diversifolia, fresh sugarcane and 4 kg of concentrates. The inclusion of T. diversifolia had no effect (P0.15) on cumulative gas production (mL, mL/g incubated DM, mL/g digested DM) or in vitro DM disappearance (%). Carbon dioxide (%, mL, mL/g incubated DM) linearly decreased (P 0.001) and CH4 (%, mL, mL/g incubated DM) quadratically increased (P 0.01) with increasing concentrations of T. diversifolia replacing fresh sugarcane and concentrates. The total volatile fatty acids (mM) and acetate (A) proportion of total volatile fatty acids (mmol/100 mmol) linearly increased (P < 0.01) with the increasing inclusion of T. diversifolia. Butyrate (mmol/100 mmol) increased quadratically (P 0.02), while propionate (P; mmol/100 mmol) decreased quadratically (P < 0.02). The A : P ratio increased linearly (P < 0.0001) with increasing amounts of T. diversifolia in the diet. These results indicated that increasing the amount of Tithonia diversifolia in the substrate DM increased the A : P ratio, which resulted in a six-fold increase of CH4 production when fresh sugarcane and concentrates were replaced at up to 15.2% and 14% (DM basis), respectively.
650 $avolatile fatty acids
653 $aDairy cow
653 $aShrub
653 $aSupplementation
700 1 $aRIBEIRO, R. S.
700 1 $aFREITAS, D. S.
700 1 $aDELAROTA, G. D.
700 1 $aPEREIRA, L. G. R.
700 1 $aTOMICH, T. R.
700 1 $aMAURÍCIO, R. M.
700 1 $aCHAVES, A. V.
773 $tAnimal Production Science$gv. 56, n. 2/3, p. 437-441, 2016.
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Embrapa Gado de Leite (CNPGL) |
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Registro Completo
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Biblioteca(s): |
Embrapa Semiárido. |
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Data corrente: |
23/08/2023 |
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Data da última atualização: |
23/08/2023 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
A - 3 |
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Autoria: |
FRACETTO, G. G. M.; FREITAS, E. de M.; NASCIMENTO, C. W. A. do; SILVA, D. J.; MEDEIROS, E. V. de; FRACETTO, F. J. C.; SILVA, F. B. V. da; BUZÓ, L. H. N.; SILVA, W. R. da. |
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Afiliação: |
GISELLE GOMES MONTEIRO FRACETTO, UFRPE; ELIABE DE MORAIS FREITAS, UFRPE; CLÍSTENES WILLIAMS ARAÚJO DO NASCIMENTO, UFRPE; DAVI JOSE SILVA, CPATSA; ERIKA VALENTE DE MEDEIROS, Universidade Federal do Agreste de Pernambuco, Recife, PE; FELIPE JOSÉ CURY FRACETTO, UFRPE; FERNANDO BRUNO VIEIRA DA SILVA, UFRPE; LUCIA HELENA NUNEZ BUZÓ, UFRPE; WILLIAM RAMOS DA SILVA, UFRPE. |
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Título: |
Phosphorus fractions and microbiological indicators in vineyards soils of a tropical semiarid setting in Brazil. |
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Ano de publicação: |
2023 |
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Fonte/Imprenta: |
Bragantia, v. 82, e20220232, 2023. |
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DOI: |
https://doi.org/10.1590/1678-4499.20220232 |
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Idioma: |
Inglês |
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Conteúdo: |
Brazilian semi-arid tropical is responsible for the production and export of fine table grapes, but the demand for phosphate fertilizers and other agricultural inputs increases the cost of production and threatens local water bodies by leaching of phosphorus (P). The objectives of this study were to quantify the organic and inorganic fractions of P and to determine chemical and microbiological attributes related to its mineralization in soils cultivated with vines in São Francisco Valley. It was hypothesized that P fractions and microbial activity would increase in areas fertilized with phosphate. Soil samples from vines were collected in cultivated areas and in fallow systems. P fractionation, macro-elements analysis, microbial biomass phosphorus (Pmic), and phosphatase enzyme activity were determined and correlated with each other and with the total proportion of synthesized glomalin. In both treatments, the inorganic P fractions exceeded the organic ones, and the total phosphorus available in those soils was associated with the most recalcitrant fractions, reducing risks of leaching of this element and contamination of water bodies. Pmic was higher in the winery areas due to the presence of phosphate fertilizers and organic matter, hence the activity of alkaline phosphatase enzymes and the production of total glomalin increased respectively in three and four evaluated areas, indicating that P-mineralized bacteria and arbuscular mycorrhizal fungi have been positively affected by the current agricultural system. MenosBrazilian semi-arid tropical is responsible for the production and export of fine table grapes, but the demand for phosphate fertilizers and other agricultural inputs increases the cost of production and threatens local water bodies by leaching of phosphorus (P). The objectives of this study were to quantify the organic and inorganic fractions of P and to determine chemical and microbiological attributes related to its mineralization in soils cultivated with vines in São Francisco Valley. It was hypothesized that P fractions and microbial activity would increase in areas fertilized with phosphate. Soil samples from vines were collected in cultivated areas and in fallow systems. P fractionation, macro-elements analysis, microbial biomass phosphorus (Pmic), and phosphatase enzyme activity were determined and correlated with each other and with the total proportion of synthesized glomalin. In both treatments, the inorganic P fractions exceeded the organic ones, and the total phosphorus available in those soils was associated with the most recalcitrant fractions, reducing risks of leaching of this element and contamination of water bodies. Pmic was higher in the winery areas due to the presence of phosphate fertilizers and organic matter, hence the activity of alkaline phosphatase enzymes and the production of total glomalin increased respectively in three and four evaluated areas, indicating that P-mineralized bacteria and arbuscular mycorrhizal fungi have been positively affec... Mostrar Tudo |
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Palavras-Chave: |
Frações inorgânicas; Frações orgânicas; Glomalina; Uvas finas de mesa; Vale do São Francisco. |
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Thesagro: |
Adubação; Adubação Foliar; Fosfatase; Matéria Orgânica; Potássio; Solo; Solo Orgânico; Uva; Vitis Labrusca; Vitis Vinifera. |
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Thesaurus NAL: |
Glomalin; Grapes; Pyrophosphatases. |
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Categoria do assunto: |
X Pesquisa, Tecnologia e Engenharia |
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Marc: |
LEADER 02812naa a2200445 a 4500
001 2156089
005 2023-08-23
008 2023 bl uuuu u00u1 u #d
024 7 $ahttps://doi.org/10.1590/1678-4499.20220232$2DOI
100 1 $aFRACETTO, G. G. M.
245 $aPhosphorus fractions and microbiological indicators in vineyards soils of a tropical semiarid setting in Brazil.$h[electronic resource]
260 $c2023
520 $aBrazilian semi-arid tropical is responsible for the production and export of fine table grapes, but the demand for phosphate fertilizers and other agricultural inputs increases the cost of production and threatens local water bodies by leaching of phosphorus (P). The objectives of this study were to quantify the organic and inorganic fractions of P and to determine chemical and microbiological attributes related to its mineralization in soils cultivated with vines in São Francisco Valley. It was hypothesized that P fractions and microbial activity would increase in areas fertilized with phosphate. Soil samples from vines were collected in cultivated areas and in fallow systems. P fractionation, macro-elements analysis, microbial biomass phosphorus (Pmic), and phosphatase enzyme activity were determined and correlated with each other and with the total proportion of synthesized glomalin. In both treatments, the inorganic P fractions exceeded the organic ones, and the total phosphorus available in those soils was associated with the most recalcitrant fractions, reducing risks of leaching of this element and contamination of water bodies. Pmic was higher in the winery areas due to the presence of phosphate fertilizers and organic matter, hence the activity of alkaline phosphatase enzymes and the production of total glomalin increased respectively in three and four evaluated areas, indicating that P-mineralized bacteria and arbuscular mycorrhizal fungi have been positively affected by the current agricultural system.
650 $aGlomalin
650 $aGrapes
650 $aPyrophosphatases
650 $aAdubação
650 $aAdubação Foliar
650 $aFosfatase
650 $aMatéria Orgânica
650 $aPotássio
650 $aSolo
650 $aSolo Orgânico
650 $aUva
650 $aVitis Labrusca
650 $aVitis Vinifera
653 $aFrações inorgânicas
653 $aFrações orgânicas
653 $aGlomalina
653 $aUvas finas de mesa
653 $aVale do São Francisco
700 1 $aFREITAS, E. de M.
700 1 $aNASCIMENTO, C. W. A. do
700 1 $aSILVA, D. J.
700 1 $aMEDEIROS, E. V. de
700 1 $aFRACETTO, F. J. C.
700 1 $aSILVA, F. B. V. da
700 1 $aBUZÓ, L. H. N.
700 1 $aSILVA, W. R. da
773 $tBragantia$gv. 82, e20220232, 2023.
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