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| Registros recuperados: 21 | |
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| Peripolli,Vanessa; Barcellos,Júlio Otávio Jardim; Prates,Ênio Rosa; McManus,Concepta; Stella,Laion Antunes; Camargo,Cláudia Medeiros; Costa Jr,João Batista Gonçalves; Bayer,Cimélio. |
| ABSTRACT The objective of this study was to evaluate the effects of mineral and protein-energy (MPES), exogenous fibrolytic enzyme supplements (ES), combination of MPES + ES, and straw without supplement (WS) on digestibility, fermentation kinetic parameters, cumulative gas production, methane, CO2 production, and volatile fatty acid concentration of rice straw of low and high nutritional value, estimated by in vitro techniques. The experimental design was randomized and factorial 2 × 4: two straws (low and high nutritional value) incubated with four supplements (MPES, ES, MPES + ES, and WS) and their interactions. Four experimental periods were used, totaling four replications per treatment over time. Data were analyzed by PROC MIXED of SAS. The in vitro... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Digestibility; Digestion kinetics; Fatty acid; Gas production; Methane. |
| Ano: 2017 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982017000300240 |
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| Carvalho, Francisco Allan Leandro de; Resende, Percivaldo Xavier; Benicio, Clístenes Amorim; Siqueira, Jackson de Oliveira; Menezes, Daniel Ribeiro; Queiroz, Mário Adriano Ávila. |
| The objective this study was to evaluate the effect of maniçoba supplementation in sugar cane silage with respect to chemical-bromatological composition and the in vitro degradation kinetics of the silage. This experiment was conducted in a completely randomized design with four treatments (maniçoba levels: 0, 20, 30, and 40%) and six repetitions. Silage samples were analyzed for their chemical-bromatological composition, digestible energy, metabolizable energy, total digestible nutrients, in vitro gas production and degradability parameters. The silage with higher inclusion level had better bromatological composition (p < 0.05) than the silage without maniçoba for CP, NDF, ADF and MM (6.49, 56.64, 38.66 and 4.52% versus 2.21, 70.96, 49.95 and 2.78%).... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Degradation; Forage conservation; Gas production; Saccharum officinarum.. |
| Ano: 2018 |
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAnimSci/article/view/42569 |
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| Sá, Jacqueline Firmino de; Universidade Estadualdo Sudoeste da Bahia; Pedreira, Márcio dos Santos; UESB; Silva, Fabiano Ferreira da; UESB; Figueiredo, Mauro Pereira de; UESB; Rebouças, Gesiane Moura Neves; UFMG; Souza, Danilo Ribeiro de; UESB. |
| O objetivo do trabalho foi avaliar os parâmetros da cinética de degradação ruminal da Brachiaria brizantha cv. Marandu, cortadas aos 28, 35 e 54 dias, pela técnica in vitro de produção de gases. Foram realizadas determinações dos teores de matéria seca (MS), matéria orgânica (MO), proteína bruta (PB), extrato etéreo (EE), fibra em detergente neutro corrigida para cinzas e proteína (FDNCP), fibra em detergente ácido (FDA), nitrogênio insolúvel em detergente neutro (NIDN), nitrogênio insolúvel em detergente ácido (NIDA), lignina (LIG), Carboidratos totais (CT), carboidratos não fibrosos (CNF), fração B2 e fração C, respectivamente. Os dados da produção de gases foram ajustados ao modelo logístico bicompartimental. O delineamento utilizado foi inteiramente... |
| Tipo: Pesquisa de campo; Analise laboratorial |
Palavras-chave: 5.04.03.00-1 Brachiaria brizantha; Taxa de degradação; Produção de gás Nutrição e Alimentação Animal Brachiaria brizantha; Degradation rate; Gas production. |
| Ano: 2011 |
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAnimSci/article/view/9462 |
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| Kulivand, Mahya; Kafilzadeh, Farokh. |
| Eight different grasses collected from pastures of the Kermanshah province (Kermanshah, Iran), at mid-vegetative stage were used to study the relationships between their chemical compositions, kinetic parameters of in vitro gas production and rumen methane production. There was a positive correlation (r = 0.62, p < 0.05) between crude protein (CP) content of grasses and total gas production (A) at 96h incubation. Negative correlations were also observed between acid detergent fiber (ADF) content and total gas production (r = -0.60, p < 0.05). Amongst the nutrients, neutral detergent fiber (NDF) and ADF were positively correlated with methane concentration, (r = 0.75 and 0.77, p < 0.01). The methane reduction potential (MRP) was negative for... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Gas production; Pasture grasses; Methane; In vitro. |
| Ano: 2015 |
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAnimSci/article/view/24336 |
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| Herrera Pérez, Jerónimo. |
| Cinco dietas integrales isoenergéticas e isoprotéicas fueron evaluadas con el objetivo de medir la producción de gas in vitro y asociarla con la digestibilidad de la materia seca en dietas para corderos elaboradas con 0, 3, 6, 9 y 12 % de inclusión de semilla de girasol. Se midió la producción de gas in vitro (PGSIV) (volumen máximo de gas (Vmax; mL g-1) para materia seca (MS), materia orgánica (MO) y materia seca degradada (MSD), la digestibilidad in vitro de la MS (DIVMS), y producción de ácidos grasos volátiles (AGV) a las 6, 12, 24, 48 y 72 h de incubación. El diseño experimental fue completamente al azar con bloques generalizados utilizando el procedimiento MIXED del SAS. Se realizaron polinomios ortogonales para probar el efecto lineal y cuadrático... |
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Palavras-chave: Acidos grasos volátiles; Producción de gas; Oleaginosas; Volatile fatty acids; Gas production; Oilseeds; Ganadería; Maestría. |
| Ano: 2013 |
URL: http://hdl.handle.net/10521/1952 |
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| Vale,Marcos M. do; Moura,Daniella J. de; Nääs,Irenilza de A.; Curi,Thayla M. R. C.; Lima,Karla A. O.. |
| ABSTRACT Global warming increases the occurrence of events such as extreme heat waves. Research on thermal and air conditions affecting broiler-rearing environment are important to evaluate the animal welfare under extreme heat aiming mitigation measures. This study aimed at evaluating the effect of a simulated heat wave, in a climatic chamber, on the thermal and air environment of 42-day-old broilers. One hundred and sixty broilers were housed and reared for 42 days in a climatic chamber; the animals were divided into eight pens. Heat wave simulation was performed on the 42nd day, the period of great impact and data sampling. The analyzed variables were room and litter temperatures, relative humidity, concentrations of oxygen, carbon monoxide and ammonia... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Ammonia; Gas production; Animal welfare; Oxygen; Litter temperature. |
| Ano: 2016 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162016000200271 |
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| Franzan,Bruna Caroline; Franco,Tatiana Werneck; Stefani,Giselle; Pereira,Marcelo Maia; Almeida,Fernando Queiroz de; Silva,Vinicius Pimentel. |
| ABSTRACT This study evaluated the influence of coastcross hay substrate hydration and equine fecal inoculum dilution on the parameters of fermentation and microbiology in in vitro essays. A 2 × 2 factorial block design was used. The first factor was hydration of the coastcross hay substrate 12 h before incubation or at the time of incubation, and the second factor was the dilution of fecal inoculum with a nutrient solution in a weight: weight ratio of 1:1 or 1:3. Degradation of the dry matter (DM), organic matter (OM), and neutral detergent fiber (NDF) were evaluated at 24, 48, and 72 h. Microorganisms were counted 24 h after inoculation. The ammoniacal nitrogen concentration (NH3-N), pH, and cumulative gas production were measured up to 72 h and adjusted... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Degradation rate; Gas production; Microbiology; Modeling; Roughage. |
| Ano: 2018 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982018000100531 |
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| Reis, Sidnei Tavares dos; Lima, Marcus Vinícius Gonçalves; Sales, Eleuza Clarete Junqueira de; Monção, Flávio Pinto; Rigueira, João Paulo Sampaio; Santos, Leonardo David Tuffi. |
| The present study aimed to evaluate the fermentation kinetics and degradation rates of Cynodon grasses estimated by semi-automated technique of in vitro gas production. The forages were: Coastcross, Tifton 85 and Tifton 68. Pressure readings were taken at 0, 2, 4, 6, 8, 10, 12, 15, 19, 24, 30, 36, 48, 72 and 96 hours. Dry matter degradability (DMD) was obtained by the percentage of dry matter (DM) remaining after 0, 6, 12, 24, 48 and 96 hours of fermentation. Tifton 85 showed a higher total gas production (p <0.05). Higher fermentation rates were found at the beginning of fermentation followed by subsequent reduction (p <0.05) over time. Tifton 85 and Tifton 68 showed higher values (p < 0.05) for soluble fraction, potentially degradable insoluble... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: 5.05.03.00-6 forage; Gas production; Semi-automated technique.. |
| Ano: 2016 |
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAnimSci/article/view/30009 |
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| Robles Jimenez,Lizbeth Esmeralda; Morales-Osorio,Andres; Gutierrez Martinez,María de Guadalupe; Osorio Avalos,Jorge; Castelan Ortega,Octavio Alonso; Gonzalez-Ronquillo,Manuel. |
| Abstract Alternatives to good quality forages for animal feeding include small grain cereals such as triticale (X Triticosecale Wittmack), which presents environmental tolerance and acceptable nutritional value. The objectives of the present study were to evaluate the forage yield, the chemical composition and in vitro gas production of three varieties of triticale (UAEMex, Bicentennial and Siglo XXI), by two conservation method (ensiled or hay). A completely randomized design with three replicates per treatment was used. The Siglo XXI variety got more forage (P < 0.0001) in both fresh and dry matter than the other treatments. There were differences (P < 0.05) between varieties, UAEMex presenting higher content of organic matter (OM 906 g/kg DM) and... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Forage yield; Milk yield; Forage Conservation; Small grain cereals; Gas production. |
| Ano: 2018 |
URL: http://www.scielo.org.co/scielo.php?script=sci_arttext&pid=S0120-28122018000300431 |
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| Azevêdo,José Augusto Gomes; Valadares Filho,Sebastião de Campos; Detmann,Edenio; Pina,Douglas dos Santos; Paulino,Mário Fonseca; Valadares,Rilene Ferreira Diniz; Pereira,Luiz Gustavo Ribeiro; Lima,Jéssika Carolina Moutinho. |
| The objective of this study was to evaluate the in situ and in vitro degradation kinetics and to predict the digestible neutral detergent fiber (dNDF) from the incubation times; in situ and in vitro degradation kinetic parameters; and equations fitted for agricultural and agro-industrial byproducts. Byproducts from pineapple, cocoa, palm kernel, corn gluten meal, common bean, sunflower, guava, cassava bark, cassava stems, cassava foliage, papaya, mango, passion fruit and turnips were evaluated. There were differences between the byproducts as for the potentially neutral detergent fiber (NDF) fraction and the in situ NDF degradation rate in the final volume of the gases generated by fibrous carbohydrates (FC), for the lag time and for the in vitro... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Fibrous carbohydrates; Gas production; Residues; Rumen degradability. |
| Ano: 2012 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982012000800013 |
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| Gomes,Maria de Fátima Falcão; Ítavo,Camila Celeste Brandão Ferreira; Ítavo,Luís Carlos Vinhas; Leal,Cássia Rejane Brito; Silva,Jonilson Araújo da; Heimbach,Natália da Silva; Leal,Eduardo Souza. |
| ABSTRACT The addition of levels of ethanol extract of brown propolis was evaluated by assessing diet degradation in rumen fluid and predicting cumulative in vitro gas production by nonlinear (dual pool logistic and exponential) models. A total of 35 g of crude propolis were extracted in 65 mL of cereal alcohol (95% ethanol). In a completely randomized factorial design, the experimental diets combined four concentrations of extracted propolis diluted in cereal alcohol (0, 50, 70, and 100% of propolis extract) and supplementation doses (4, 8, 12, 16, and 20 mL/kg dry matter), tested in triplicate. Diet (400 g/kg Tifton hay and 600 g/kg concentrate) was incubated for 96 h carried out three times in three different weeks. There was significant interaction... |
| Tipo: Info:eu-repo/semantics/other |
Palavras-chave: Feed additive; Gas production; Propolis; Ruminal degradability; Ruminant nutrition. |
| Ano: 2017 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982017000700599 |
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| Ferreira,Alexandre Lima; Maurício,Rogério Martins; Pereira,Luiz Gustavo Ribeiro; Azevêdo,José Augusto Gomes; Oliveira,Leandro Silva; Pereira,José Marques. |
| The objective of this study was to evaluate the nutritional divergence between ten genotypes of forage peanut, based on chemical composition as well as fermentation and in vitro degradation kinetic characteristics. Treatments consisted of ten genotypes of Arachis pintoi, namely eight accessions (31135, 30333, 15121, 31828, 15598, 31534, 13251 and 31496) and two cultivars (cv. Belmonte and cv. Amarillo). The genotypes were harvested in each plot at a height of 3 cm from the ground, in 42-day intervals, during the time of heaviest rainfall. For the multivariate analysis the following variables, the following were used: crude protein, neutral detergent fiber, potential degradation in 48 hours, degradation rate of insoluble potentially degradable fraction and... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Chemical composition; Gas production; Multivariate analysis. |
| Ano: 2012 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982012000400005 |
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| Hygino, Bruna; Alcalde, Claudete Regina; Diaz, Tatiana Garcia; Olivo, Paula Martins; Santos, Geraldo Tadeu dos; Silva, Caroline Isabela da. |
| This study was performed to characterize feed used in diets for Saanen goats. The feedstuffs were: Tifton 85 hay (Cynodon spp.), soybean meal, ground corn, soybean hulls, ground ear corn and dried cassava residue. Contents were determined for dry matter, ash, crude protein, ether extract, neutral detergent fiber, acid detergent fiber, physically effective fiber and lignin, and organic matter, total carbohydrates and non-fiber carbohydrates were estimated. Carbohydrates were divided into fractions A + B1 (rapidly degradable), B2 (potentially degradable) and C (non-degradable); and the protein in fractions A (soluble), B1 (rapid ruminal degradation), B2 (intermediate degradation), B3 (slow degradation) and C (indigestible). To determine the gas production an... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: 5.04.03.02-8 byproduct; Fractioning; Gas production; Goats; Ruminal degradation.. |
| Ano: 2015 |
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAnimSci/article/view/28705 |
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| Almeida, João Carlos de Carvalho; Morais, Leonardo Fiusa de; Moreira, Thaís Gláucia Bueno; Abreu, João Batista Rodrigues de; Morenz, Mirton José Frota. |
| The effect of ammonization was evaluated with urea at doses of 1, 2, 3 and 4%, on the basis of dry matter (DM) on Tifton 85 hay harvested at an advanced stage of development in the periods of 30 and 45 days, through analysis of dry matter, ash, ether extract (EE), neutral (NDF) and acid (ADF) detergent fiber, NDF corrected for ash and protein (NDFap), cellulose, lignin, crude protein (CP), acid detergent insoluble nitrogen (ADIN), fractionation of carbohydrates and in vitro gas production (Parameters: Vf1, k1, Vf2, k2 and L). The variables DM, EE, NDF, ADF, lignin, cellulose, NDFap, fraction A + B1, fraction B2 and C of carbohydrates, and the Vf1 and Vf2 parameters were influenced by treatments (p < 0.05). While DM, NDF, NDFap, fraction A + B1, C, CP... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Zootecnia; Forragicultura; Tratamento de volumosos chemical treatment; Gas production; Low quality forages.. |
| Ano: 2018 |
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAnimSci/article/view/42473 |
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| Fluck,Ana Carolina; Kozloski,Gilberto Vilmar; Martins,Andressa Ana; Mezzomo,Mariana Patricia; Zanferari,Filipe; Stefanello,Simone. |
| Inclusion of forage legumes in diet may improve tropical ruminant systems productivity and sustainability. However, it is not well stablished which chemical components more impact their nutritional value. The relationship between chemical composition and in vitro fermentation of tropical forage legume was evaluated with the objective of obtaining indicators of their nutritional value. Samples of Crotalaria spectabilis, Cajanus cajan, Macrotyloma axillare, Mucuna aterrina, Stylosantis sp. and Canavalia ensiformis, cut from plants at growth age between 47 to 110 days, were analysed. Total gas production showed negative correlation (P<0.05) with total N (R=-0.51), acid detergent fibre (ADF, R=-0.62) and acid detergent lignin (ADL, R=-0.65), and positive... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Gas production; Lignin; Nutritional value; Phenolic compounds; Tannins. |
| Ano: 2013 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-70542013000500010 |
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| Registros recuperados: 21 | |
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