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| Registros recuperados: 13 | |
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| Souza,N.K.P.; Detmann,E.; Valadares Filho,S.C.; Costa,V.A.C.; Pina,D.S.; Gomes,D.I.; Queiroz,A.C.; Mantovani,H.C.. |
| The accuracy of two different methods in measuring the ammonia nitrogen (N-NH3) concentration in rumen fluid were evaluated: a catalyzed indophenol colorimetric reaction (CICR) and the Kjeldahl distillation (KD). Five buffered standard solutions containing volatile fatty acids, true protein, and known ammonia concentrations (0, 3, 6, 12, and 24 N-NH3 mg/dL) were used to simulate rumen fluid. Different ratios (10:1, 7.5:1, 5:1, 2.5:1, 1:1, 1:2.5, 1:5, 1:7.5, and 1:10) of a potassium hydroxide solution (KOH, 2 mol/L) to standard solutions were evaluated by the KD method. The accuracy of each method was evaluated by adjusting a simple linear regression model of the estimated N-NH3 concentrations on the N-NH3 concentrations in the standard solutions. When the... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Ammonia nitrogen; Indophenol colorimetric reaction; Kjeldahl distillation. |
| Ano: 2013 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352013000600024 |
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| Leite,Valderi D.; Barros,Aldre J. M.; Lopes,Wilton S.; Sousa,José T. de. |
| Sanitary landfill leachates present high concentrations of carbonaceous and nitrogenous materials. The crucial point is that carbonaceous materials are of difficult biodegradation, what compromises the performance of biological treatment processes, while nitrogenous materials, such as ammonia nitrogen, probably preclude the use of biological treatments. Therefore, the aim of this work was to study the desorption process of ammonia nitrogen from sanitary landfill leachate in filling towers. Desorption was carried out in filling towers of 35 L capacity. The leachate was collected from a sanitary landfill located in João Pessoa, Paraíba State, Brazil. Desorption efficiency for the pH values adopted in four treatments was 93% minimum and 95.5% maximum, with... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Leachate; Ammonia nitrogen; Filling tower; Desorption. |
| Ano: 2014 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162014000300017 |
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| Felisberto,Nivea Regina de Oliveira; Rodrigues,Marcelo Teixeira; Bomfim,Marco Aurélio Delmondes; Matos,Rogério da Silva; Cordeiro,Ana Gabriela Pombo Celles; Silva,Márcia Maria Cândido da. |
| Diets formulated with protein sources presenting different resistance to ruminal degradation were compared by evaluating ruminal parameters, production and microbial efficiency and nutrients flow to the omasum in goats. Eight rumen cannulated non-lactating, non-pregnant goats were distributed in a 4 × 4 Latin square design with two replicates. Treatments consisted of four diets where different sources of plant protein accounted for the major protein source named soybean meal, source of higher ruminal degradability, and three other sources of higher resistance of degradation: roasted soybean, corn gluten meal, and cottonseed cake. Amounts of rumen protein were similar among rations; however, flows of dry matter, protein and non-fiber carbohydrate to omasum... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Ammonia nitrogen; Biological value; Goats; Microbial protein; Passage rate; PH. |
| Ano: 2011 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982011001000024 |
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| Aguiar,Sílvia Cristina de; Paula,Eduardo Marostegan de; Yoshimura,Emerson Henri; Santos,Wallacy Barbacena Rosa dos; Machado,Erica; Valero,Maribel Velandia; Santos,Geraldo Tadeu dos; Zeoula,Lucia Maria. |
| Four rumen-cannulated primiparous lactating cows were studied in a 4 × 4 Latin square design experiment to evaluate the effects of propolis-based products (PBP) with different concentrations of propolis and alcohol levels on total digestibility, (TD), ruminal digestibility (RD), intestinal digestibility (ID), pH, ruminal ammonia-nitrogen production (NH3-N), rumen microbial synthesis, and blood parameters. The feed consisted of 591.9 g/kg corn silage and 408.1 g/kg concentrate (dry matter [DM] basis), and treatments differed with regard to the inclusion (via ruminal cannula) or exclusion of PBP as follows: control (without the PBP), PBP B1 (3.81 mg of phenolic compounds/kg of ingested DM), PBP C1 (3.27 mg of phenolic compounds/kg of ingested DM), and PBP C3... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Additive; Ammonia nitrogen; Flavonoids; Phenolic acids; Ruminants. |
| Ano: 2014 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982014000400197 |
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| Hussenot, Jerome; Mornet, Francoise; Le Moine, Olivier; Geairon, Philippe; Guesdon, Stephane. |
| This study aimed to analyse the quality of the sea water flowing into the marine farm of Douhet, a gilthead bream hatchery, from the marsh-seawater reservoir to the entrance of the hatchery. The basin-seawater reservoir is not stratified in the pumping area. As a consequence, the measurements carried out at the surface to the right of the pumping dock give a good evaluation of the quality of the seawater pumped in depth. The high sensitivity of gilthead bream larvae to the water PH during the first two weeks of their larval life, and the values measured in the circuit seem to be an explanatory parameter to the observed mortalities. The water flowing into the hatchery retains, after pre-treatment, a nycthemeral PH variability, with maxima, at the end of the... |
| Tipo: Text |
Palavras-chave: Ammonia nitrogen; PH; Sea bream; Fish hatchery; Reservoir; Water quality; Azote ammoniacal; PH; Daurade royale; Ecloserie; Réserve; Qualité des eaux. |
| Ano: 2006 |
URL: http://archimer.ifremer.fr/doc/2006/rapport-6497.PDF |
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| Santos,Otanael Oliveira dos; Araújo,Gherman Garcia Leal de; Mistura,Claudio; Pereira,Luiz Gustavo Ribeiro; Voltolini,Tadeu Vinhas; Santos,Mércia Virginia Ferreira dos; Araújo,Josivânia Rodrigues de. |
| The effects of the addition of saltbush on the fermentation characteristics and nutritional value of silages of elephant grass (Pennistum purpureum Schum.) were studied through a completely randomized design with six old man saltbush (Atriplex nummularia Lind) levels (0, 20, 40, 60, 80 and 100 %) in substitution of the grass natural matter, with six replicates. Elephant grass presented 18.9% dry matter (DM) and silages were produced in experimental PVC silos, which were open at 70 days after ensilage. The increasing old man saltbush levels had increasing linear effect on the DM content of silages. There was quadratic effect for the contents of lactic and acetic acids and in vitro DM digestibility. Contents of butyric acid were negligible. Values pH of and... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Acid detergent fiber; Ammonia nitrogen; Crude protein; Neutral detergent fiber; PH. |
| Ano: 2012 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982012000600012 |
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| Zorzi,Karina; Detmann,Edenio; Queiroz,Augusto César de; Paulino,Mário Fonseca; Mantovani,Hilário Cuquetto; Bayão,Geraldo Fábio. |
| The objective of this work was to evaluate the in vitro degradation dynamics of neutral detergent fiber (NDF) of high-quality tropical forage according to supplementation with different nitrogenous compounds sources. A signal grass sample harvested during rainy season was used as basal forage. Casein was used as true protein source and urea:ammonium sulfate (U:AS, 9:1) mixture (urea) as non-protein nitrogen source. The first three supplements were the addition of 0.5, 1.0 and 2.0 mg of casein per mL of final incubation solution. The urea was added to the same amount of protein supplied by equivalent levels 0.5, 1.0 and 2.0 mg/mL of casein. In total, seven treatments were evaluated, including a control (only grass). The supplements were evaluated in a... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Ammonia nitrogen; Casein; Signal grass; Supplement; Urea. |
| Ano: 2009 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982009000500025 |
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| Sittiya,J; Yamauchi,K; Nimanong,W; Thongwittaya,N. |
| ABSTRACT The present study was conducted to investigate the effects of dietary fiber source levels on the fecal ammonia nitrogen, growth performance, carcass traits, gastrointestinal tract development, and intestinal morphology of broilers. A total of 420 one-day-old unsexed broiler chicks were individually weighed and randomly divided into 5 groups, each with seven replicates of twelve chicks. Rice hulls (RH) and soybean hulls (SH) were ground through a hammer mill with a 2-mm screen. The RH and SH experimental diets were as follows: 0% (control); 2.5% RH; 2.5% SH; 5% RH; and 5% SH. No significant differences were found in growth performance and fecal ammonia nitrogen among the dietary treatment groups (p>0.05). Compared with the control, the... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Rice hulls; Soybean hulls; Broilers; Intestinal morphology; Ammonia nitrogen. |
| Ano: 2020 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2020000100315 |
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| Silva, Daniel Cézar da; Universidade Federal do Piauí; Alves, Arnaud Azevêdo; Universidade Federal do Piauí; Vasconcelos, Vânia Rodrigues; Universidade Federal do Piauí; Nascimento, Hoston Tomás Santos do; Embrapa Meio Norte; Moreira Filho, Miguel Arcanjo; Universidade Federal do Piauí; Oliveira, Maria Elizabete de; Universidade Federal do Piauí. |
| Avaliou-se o efeito da inclusão de 0; 33; 67 e 100% do farelo de mamona destoxificado (FMD) em substituição ao farelo de soja em dietas para ovinos em terminação sobre o metabolismo dos compostos nitrogenados, em delineamento de blocos ao acaso em parcelas subdivididas (tempos de coleta líquido ruminal e sangue), com cinco animais por tratamento. Não houve efeito (p > 0,05) sobre os parâmetros de metabolismo de nitrogênio, Ningerido, Nfecal, Nurinário, Nabsorvido e Nretido (g dia-1), relação Nfecal/Ningerido e Nurinário/Ningerido (%),Nfecal/Nurinário (g g-1) e balanço de nitrogênio (%), com médias 26,70 ± 5,50; 8,73 ± 1,79; 2,17 ± 0,71; 17,96 ± 3,98; 15,78 ± 3,17; 32,90 ± 2,82; 7,89... |
| Tipo: Pesquisa de campo; análise laboratorial |
Palavras-chave: 5.04.03.00-1 balanço de nitrogênio; Líquido ruminal; Nitrogênio amoniacal; Ricinus communis; Valor nutritivo Produção Animal nitrogen balance; Ruminal fluid; Ammonia nitrogen; Ricinus communis; Nutritional value. |
| Ano: 2010 |
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAnimSci/article/view/8074 |
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| Silva, Camilla Flávia Portela Gomes da; Universidade Estadua do Sudoeste da Bahia; Pedreira, Márcio dos Santos; Universidade Estadual do Sudoeste da Bahia; Figueiredo, Mauro Pereira de; Universidade Estadual do Sudoeste da Bahia; Bernardino, Fernando Salgado; Universidade Federal de Viçosa; Farias, Daniela da Hora. |
| Foram avaliados os efeitos do emurchecimento e da inclusão de raízes (0, 15, 30 e 45% da matéria natural) sobre a composição químico-bromatológica e parâmetros fermentativos de silagens da parte aérea da mandioca. O emurchecimento influenciou significativamente o teor matéria seca (MS), a densidade e o pH das silagens em todas as doses de adição de raízes. A inclusão destas elevou o teor de MS em 0,128 e 0,261%, a densidade em 1,79 e 4,54 kg m-3 e, reduziu o pH em 0,0007 e 0,0062, respectivamente nas silagens emurchecidas ou não, a cada unidade percentual de adição de raízes. A exceção dos teores de fibra detergente ácida (FDA) e lignina, todos os demais parâmetros apresentaram interação significativa entre o emurchecimento e a inclusão de raízes. O... |
| Tipo: Análise laboratorial |
Palavras-chave: 5.04.03.00-1 Densidade; Fibra; Forragem; Nitrogênio amoniacal; PH; Ruminantes Nutrição e Alimentação Animal Density; Fiber; Forage; Ammonia nitrogen; PH; Ruminants. |
| Ano: 2010 |
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAnimSci/article/view/8930 |
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| Dias,Alexandre Menezes; Ítavo,Luís Carlos Vinhas; Damasceno,Julio Cesar; Santos,Geraldo Tadeu dos; Nogueira,Ériklis; Ítavo,Camila Celeste Brandão Ferreira. |
| The objective of this study was to evaluate the administration of different doses of calcium hydroxide mixed with sugar cane fed to cows by the pH, ammonia nitrogen and volatile fatty acids concentration in ruminal content. Four cows with fistulated rumen were distributed in a Latin square (4 × 4) in split plot. The treatments involved adding doses of 0, 8, 16 and 24 g/kg of calcium hydroxide to sugar cane in natura. Samples of rumen fluid were collected and the pH and concentration of N-NH3 was determined before (time zero) and 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11 and 12 hours after the feeding time. The concentration of volatile fatty acids at 0, 3, 6, 9 and 12 hours was also determined. The calcium hydroxide contributed to maintain the pH of rumen fluid... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Ammonia nitrogen; Ruminal pH; Saccharum officinarum; VFA. |
| Ano: 2012 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982012000400019 |
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| Monteiro, India Joelma Gatass; EMATER/RO; Abreu, Joadil Gonçalves de; UFMT; Cabral, Luciano Da Silva; UFMT; Ribeiro, Marinaldo Divino; UFMT; Reis, Rafael Henrique Pereira dos; UFMT. |
| Objetivou-se avaliar o padrão de fermentação e a composição bromatológica da silagem de capim-elefante utilizando diferentes aditivos. Utilizou-se o delineamento inteiramente casualizado com seis tratamentos (capim-elefante sem aditivo; com 100 kg de farelo de arroz t-1 de massa verde (MV); com 100 kg de casca de soja t-1 MV; com 100 kg de fubá de milho t-1 MV; com 200 kg de cana-de-açúcar picada t-1 MV; com inoculante bacteriano) e quatro repetições. Utilizaram-se silos de PVC, adotando densidade de 600 kg de massa verde m-3. Com a exceção do inoculante bacteriano, todos os aditivos proporcionaram aumento nos teores de matéria seca (27,95 a 31,65%) e carboidratos solúveis (15,20 a 17,14%) na forragem a ser ensilada. Os aditivos promoveram adequado padrão... |
| Tipo: Pesquisa de campo, análise em laboratório |
Palavras-chave: 5.04.04.01-6 carboidratos solúveis; Farelo de arroz; Nitrogênio amoniacal; PH soluble carbohydrates; Rice bran; Ammonia nitrogen; PH. |
| Ano: 2011 |
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAnimSci/article/view/12629 |
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| Neres,Marcela Abbado; Hermes,Paula Regina; Ames,João Paulo; Zambom,Maximilliane Alavarse; Castagnara,Deise Dalazen; Souza,Leiliane Cristine de. |
| The use of tropical grasses silage has become common in ruminant feed. An experiment was conducted to evaluate the fermentation characteristics, nutritional value, pH, fermentative capacity, ammonia nitrogen / total nitrogen (NH3N/total N) of Tifton 85 bermudagrass grass silage with different additives and wilting. The treatments were: pre-drying in the sun for two hours before silage, use of inoculant-enzymatic addition of soybean hulls, corn grits addition and use of salt in the surface layer of the silo. The experimental design was completely randomized with 6 treatments and 4 replications. Plants of Tifton 85 bermudagrass with 38 days of growth were ensiled in experimental silos with Bunsen valve type with packing densities of 236 kg of silage per m³... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Acid latic; Corn grits; Enzymatic-bacterian inoculant; Ammonia nitrogen; Soybean hulls. |
| Ano: 2014 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-70542014000100010 |
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| Registros recuperados: 13 | |
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