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| Registros recuperados: 150 | |
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| Pérez, E.; Chalén, N.; Macías, P.. |
| During april 1995 hydrochemical research in a vertical column on the east side of the Galápagos Islands (Cruise T95/04/01) onboard of the INP R/V Tohallí indicated that concentrations of ammonium, nitrate, phosphate and chlorophyll-a were found stratified from the surface to deeper layers, on the other hand the maximum levels of nitrite and silicate were detected 70 m below the thermocline. The apparent oxygen use (AOU) varied from 1 to over 3 below the thermocline, this would indicate an oxidating environment due to the high levels of nitrate, phosphate, silicate and low concentrations of dissolved Oxygen (ca. 90-134[µM]) and ammonium (<0,1[µM]). According to the high salinity average (35,0 ups), nutritive elements (nitrate 15,6 [µM], silicate 13,1... |
| Tipo: Journal Contribution |
Palavras-chave: Chemical composition; Oceanography; Upwelling; Oceanic islands; Chemical composition; Oceanography; Http://aims.fao.org/aos/agrovoc/c_1794; Http://aims.fao.org/aos/agrovoc/c_12889. |
| Ano: 1995 |
URL: http://hdl.handle.net/1834/3021 |
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| Oueld Ahmed BEDDIH, M.L; El Cafsi, M.; Marzouk, B.; Zarrouk, K.. |
| : تمثل البطارخ، مبايض سمك البوري (Mugil cephalus) والكوربين (Argyrosomus regius) المملحة و المجففة، ثروة هامة لمنطقة نواكشوط ولموريتانيا. لمعرفة مقدار الطاقة في هذه البطارخ، قمنا بدراسة كمية لمكوناتها الطاقية : الدهنيات والبروتينات و السكريات و كيفية للدهنيات. بينت هذه الدراسة أن البطارخ تحتوي على نسب ضئيلة من السكريات. ففي بطارخ الكوربين لاتتجاوز 1,95 % و3,29 %في بطارخ البوري. في هذه الأخيرة ترتفع نسبتي البروتينات و الدهنيات إلى 44,44 % و31,68 % بينما في بطارخ الكوربين تصل هاتين النسبتين إلى%55,11 و15,86 %. كما تبين أن البطارخ غنية بالطاقة حيث توجد بها 493,80 كيلوكالوري/100غ في بطارخ البوري و 384,27 كيلوكالوري/100غ في بطارح الكوربين وكل غرام من بطارخ البوري تحتوي على 28,1 ملغ أحماض دهنية و19,7 أحماض دهنية ببطارخ الكوربين . تنقسم هذه الأحماض إلى ثلاث... |
| Tipo: Journal Contribution |
Palavras-chave: Chemical composition; Proteins; Lipids; Fatty acids; Carbohydrates; Food fish; Nutritive value; Chemical composition; Fatty acids; Carbohydrates; Nutritive value; Proteins; Lipids; Http://aims.fao.org/aos/agrovoc/c_1794; Http://aims.fao.org/aos/agrovoc/c_2818; Http://aims.fao.org/aos/agrovoc/c_1300; Http://aims.fao.org/aos/agrovoc/c_5278; Http://aims.fao.org/aos/agrovoc/c_6259; Http://aims.fao.org/aos/agrovoc/c_4362. |
| Ano: 2005 |
URL: http://hdl.handle.net/1834/1536 |
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| Massa, A.E.; Fernández Compás, A.S.; Pennisi Farell, S.C.; Manca, E.A.. |
| The aim of this study was to determine the chemical composition and fatty acids profile present in Argentine anchovy (Engraulis anchoita) northern population as a function of fish size and fishing area (SW Atlantic Ocean, Argentine Sea). Samples were collected during the northern stock assessment cruise of the Instituto Nacional de Investigación y Desarrollo Pesquero (INIDEP) carried out on board of FRV Capitán Oca Balda in Spring 2008 (OB-02/2008). The fishing trawls were performed between 34º 35' S and 40º 19' S. The area was divided in two zones: the northern, between 34º S-38º S, strongly influenced by the mixohaline waters of the Río de la Plata River estuary and the southern, between 38º S-41º S, that included the El Rincón coastal area. In each... |
| Tipo: Journal Contribution |
Palavras-chave: Fishing grounds; Stocks; Chemical composition; Fatty acids; Size. |
| Ano: 2013 |
URL: http://hdl.handle.net/1834/5499 |
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| Burgos, L.. |
| Durante los meses del verano austral (Nov. 1997-feb.1998) se realizó la VII Expedición Ecuatoriana a la Antártida a bordo del B/I ORION del Instituto Oceanográfico de la Armada. del 24 al 27 de enero/98, se realizaron 14 estaciones oceanográficas en el interior del Estrecho Bransfield donde además de varios parámetros físicos, meteorológicos y biológicos se estudiaron parámetros químicos como micronutrientes y oxígeno disuelto hasta una profundidad de 500 m. Se exponen los criterios y resultados obtenido de la distribución superficial y subsuperficial de los nutrientes y oxígeno disueltos. Se describen los diagramas T/S de las masas de aguas identificadas y su composición química. Las aguas superficiales del interior del Estrecho Bransfield se presentaron... |
| Tipo: Journal Contribution |
Palavras-chave: Chemical composition; Dissolved oxygen; Surface water; Ground water; Research vessels; Ground water; Chemical composition; Dissolved oxygen; Surface water. |
| Ano: 1998 |
URL: http://hdl.handle.net/1834/3849 |
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| Solórzano, L.; Suéscum, R.T. de. |
| La concentración de nutrientes en las aguas del Pacífico ecuatoriano durante el período pre-invernal de septiembre y diciembre de 1990 estuvo influenciada, principalmente, por el transporte estacional de aguas oceánicas de diferentes orígenes. La migración de los organismos acuáticos, los procesos biológicos de utilización y mineralización, la sedimentación de las partículas orgánicas a través de la columna de agua, y el drenaje continental, podrían haber influenciado, en menor proporción, las propiedades químicas del área. Durante el crucero llevado a cabo en los meses de septiembre y octubre de 1990, las aguas peruanas de mayor densidad y ricas en nutrientes fueron fácilmente observables a lo ancho del transecto del meridiano 82ºW. Por otro lado las... |
| Tipo: Journal Contribution |
Palavras-chave: Chemical composition; Nutrients (mineral); Oceanographic data; Chemical composition; Http://aims.fao.org/aos/agrovoc/c_1794. |
| Ano: 1991 |
URL: http://hdl.handle.net/1834/3106 |
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| Macedo, Lucélia Alves; Rousset, Patrick Louis Albert; Vale, Ailton Teixeira. |
| This work assessed the effect of biomass composition (ash, volatile matter and fixed carbon content, carbon, hydrogen and nitrogen content, lignin, extractives and holocellulose content) on the condensable gas yield from the torrefaction of rice husk (Oryza sativa L.), jatropha seed husk (Jatropha curcas L.), elephant grass (Pennisetum purpureum Schum. var. mineiro); sugarcane bagasse (Sacharum officinarum L.) and bamboo (Bambusa vulgaris ex J.C. Wendl. var. vulgaris). Biomasses with a particle size between 0.5 mm and 1.0 mm were subjected to torrefaction process using a temperature gradient varying from 250 °C to 300 °C, for 15 min, with a heating rate of 20 °C min-1. Five trials were conducted for each biomass and solid, liquid and gas yields were... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Chemical composition; Thermal treatment; Liquid by-product Recursos Florestais; Engenharia Florestal Bioenergia Composição química; Tratamento térmico; Análise imediata. |
| Ano: 2014 |
URL: http://pfb.cnpf.embrapa.br/pfb/index.php/pfb/article/view/747 |
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| Coêlho,Janerson José; Mello,Alexandre Carneiro Leão de; Santos,Mércia Virginia Ferreira dos; Dubeux Junior,José Carlos Batista; Cunha,Marcio Vieira da; Lira,Mário de Andrade. |
| Abstract: The objective of this work was to estimate the repeatability (r) and the number of samples required to measure the nutritional value of four warm-season forage grasses growing in a semiarid region. The grasses evaluated were Urochloa mosambicensis, Cenchrus ciliaris, Digitaria pentzii, and Megathyrsus maximus. Evaluations occurred under two forage management conditions: stockpiling and grazing. Hand-plucked forage samples were analyzed for dry matter (DM), crude protein (CP), neutral detergent fiber (NDF), acid detergent fiber (ADF), lignin, and in vitro DM digestibility (IVDMD). Four methods were used to estimate r and the number of samples required: analysis of variance, method of principal components based on the covariance (PCCOV) and the... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Chemical composition; IVDMD; Sampling; Warm-season grasses. |
| Ano: 2018 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2018000300378 |
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| Brige,Felipe Augusto Alves; Celestino,Sonia Maria Costa; Amabile,Renato Fernando; Fagioli,Marcelo; Delvico,Francisco Marcos dos Santos; Montalvão,Ana Paula Leite; Sala,Pedro Ivo Aquino Leite. |
| Abstract: The objective of this work was to quantify the genetic variability of 213 conilon coffee accessions of the Robusta Tropical cultivar, based on chemical characteristics related to the quality of green coffee beans, as well as to identify promising accessions for the breeding program of irrigated conilon coffee in the Brazilian Cerrado. The chemical characteristics evaluated were: protein and caffeine contents, total soluble solids and total lipids, ether extract, pH, and total titratable acidity. The data were subjected to the principal component analysis and cluster analysis based on the similarities observed within the first two principal components using the minimum variance method (Wards) and, as a measure of similarity, the Euclidean... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Coffea canephora; Chemical composition; Genetic diversity; Multivariate analysis. |
| Ano: 2019 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2019000102804 |
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| Carvalho,Arminda Moreira de; Souza,Lara Line Pereira de; Guimarães Júnior,Roberto; Alves,Pedro Cesar Almeida Castro; Vivaldi,Lúcio José. |
| The objective of this work was to evaluate the effects of lignin, hemicellulose, and cellulose concentrations in the decomposition process of cover plant residues with potential use in no-tillage with corn, for crop-livestock integrated system, in the Cerrado region. The experiment was carried out at Embrapa Cerrados, in Planaltina, DF, Brazil in a split plot experimental design. The plots were represented by the plant species and the subplots by harvesting times, with three replicates. The cover plants Urochloa ruziziensis, Canavalia brasiliensis, Cajanus cajan, Pennisetum glaucum, Mucuna aterrima, Raphanus sativus, Sorghum bicolor were evaluated together with spontaneous plants in the fallow. Cover plants with lower lignin concentrations and,... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Chemical composition; Organic matter; Corn yield. |
| Ano: 2011 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2011001000012 |
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| Alves,Bruna Mendonça; Cargnelutti Filho,Alberto; Burin,Cláudia; Toebe,Marcos. |
| Abstract: The objective of this work was to verify if there is linear dependence between the phenological, morphological, and productive traits and the energetic-nutritional ones in early maturing and super-early maturing corn genotypes. A total of 36 early maturing and 22 super-early maturing corn genotypes were evaluated in a randomized complete block design with three replicates, and the phenological, morphological, productive, and energetic-nutritional traits were measured. The matrix of phenotypic correlation coefficients among traits was determined; the multicollinearity diagnosis was carried out within each group of traits; and the canonical correlation analysis was performed. Linear dependence was observed between the groups of phenological,... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Zea mays; Chemical composition; Multivariate analysis.. |
| Ano: 2017 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2017000100026 |
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| Reta-Sánchez,DG; Serrato-Corona,JS; Quiroga-Garza,HM; Gaytán-Mascorro,A; Cueto-Wong,JA. |
| Kenaf (Hibiscus cannabinus L.) forage potential can be enhanced through its regrowth capacity and higher production in narrow rows. A field experiment was conducted in Matamoros, Coahuila, Mexico, during 2 growing seasons (2004 and 2005) to study the effects of plant height and row spacing on kenaf forage potential with multiple harvests. This study evaluated the effects of (1) 2 plant heights at cutting (1.0-1.2 m and 1.8-2.0 m) and (2) 4 inter row spacings (0.19, 0.38, 0.57 and 0.76 m) using a 2 x 4 factorial arrangement of treatments in a completely randomized block design with 4 replications. Dry matter (DM) and crude protein (CP) yields, DM partitioning, neutral detergent fiber (NDF) and CP concentrations were determined. Heights at cutting × row... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Hibiscus cannabinus L; Chemical composition; Dry matter and crude protein yields; Dry matter partitioning. |
| Ano: 2015 |
URL: http://www.scielo.org.ar/scielo.php?script=sci_arttext&pid=S1851-56572015000200002 |
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| Mudalal,S; Petracci,M. |
| ABSTRACT This study aims to evaluate the possibility to formulate low-sodium bicarbonate-marinated turkey breast meat. In total, 60 meat cuts (100 × 50 × 30mm) were divided into four treatments: B1 (0.5% sodium bicarbonate and 0% sodium chloride replacement), B2 (0.5% sodium bicarbonate and 15% sodium chloride replacement), B3 (0.5% sodium bicarbonate and 30% sodium chloride replacement), and B4 (0.5% sodium bicarbonate and 45% sodium chloride replacement). The results showed that sodium replacement up to 45% had no impact on texture (as represented by Allo-Kramer shear values) and water activity. After cooking, Group B1 exhibited the highest L* value (72.1) and the lowest b* (6.6) when compared to other groups. In conclusion, replacing sodium chloride... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Chemical composition; Water activity; Texture; Sensory.. |
| Ano: 2019 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2019000300316 |
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| Rodrigues,SIFC; Stringhini,JH; Ribeiro,AML; Pontalti,GC; McManus,CM. |
| This study aimed at investigating factors that contribute to changes in the quality of corn used in compound poultry feeds. Samples were collected from 6488 bulk cargos received at a feed mill located close to Brasília, Brazil. The parameters studied were divided into two groups: those related to corn chemical composition, including crude protein (% CP), ether extract (% EE), crude fiber (% CF), nitrogen-free extract (% NFE), and estimated metabolizable energy (ME), and corn physical characteristics, including density, moisture, and grain physical damage. High coefficients of determination (R²) and low coefficients of variation (CV) were determined for the chemical and physical parameters. The analysis of variance showed low to medium R². Month, year,... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Chemical composition; Grain damage; Corn density; Nutritional value; Physical traits. |
| Ano: 2014 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2014000300002 |
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| Weiler,Douglas Adams; Giacomini,Sandro José; Aita,Celso; Schmatz,Raquel; Pilecco,Getúlio Elias; Chaves,Bruno; Bastos,Leonardo Mendes. |
| ABSTRACT Cover crops have numerous benefits when used in a no-till system. Understanding the processes of decomposition and N release of summer cover crops (SCC) may help select species and management to be used in cropping systems. This study aimed to evaluate C and N loss of SCC shoots. Six SCCs were evaluated: velvet bean (Mucuna aterrima), pearl millet (Pennisetum americanum), dwarf pigeon pea (Cajanus cajan), sunn hemp (Crotalaria juncea), showy rattlebox (Crotalaria spectabilis), and jack bean (Canavalia ensiformis). The experiment was conducted for two years under no-till in soil classified as Typic Hapludalf (Argissolo). The C and N remaining of crop shoots were evaluated for 140 days using litter bags and the results were fitted with a simple... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Chemical composition; Legumes; Cropping system; Crop residue; Nutrient cycling. |
| Ano: 2019 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-06832019000100414 |
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| Registros recuperados: 150 | |
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