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| Registros recuperados: 10.963 | |
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| Munhoz,Lívia Silveira; Vargas,Gilberto D'Ávila; Fischer,Geferson; Lima,Marcelo de; Esteves,Paulo Augusto; Hübner,Silvia de Oliveira. |
| Immunoglobulin Y (IgY) is the major antibody isotype in birds, reptiles, amphibia, and lungfish, playing a similar biological role as mammal IgG. Due to its phylogenetic distance, immune diversification and presence in the egg yolk, IgY provide a number of advantages in immunodiagnostic compared to IgG from mammals. Moreover, IgY production is in agreement with international efforts to reduce, refine and if possible, to replace animals in experimentation, contributing substantially in favor of animal welfare. This article presents an overview about structural and functional features, production and applications of IgY in immunodiagnostic, as well as the advantages of chicken antibodies use. |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Egg yolk antibody; Immunodiagnostics; Immunoglobulin Y; Polyclonal antibodies. |
| Ano: 2014 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782014000100025 |
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| Costa,Augusto Guerreiro Fontoura; Velini,Edivaldo Domingues; Rossi,Caio Vitagliano Santi; Corrêa,Marcelo Rocha; Negrisoli,Eduardo; Fiorini,Marcus Vinicius; Siono,Luis Marcelo. |
| O objetivo do trabalho foi avaliar o efeito de adjuvantes sobre a deriva em aplicações da mistura de 2,4-D + glyphosate. O experimento foi conduzido em condições de campo em delineamento inteiramente casualizado. Os tratamentos corresponderam às soluções com a mistura dos herbicidas 2,4-D + glyphosate (670 e 1068g ha-1, respectivamente) adicionando-se os adjuvantes (v v-1): óleo mineral (0,5%); agente antideriva (0,09%); espalhante adesivo A (0,1%); fertilizante líquido (0,05%); espalhante adesivo B (0,25%); e somente os herbicidas (testemunha). Foram utilizados para determinação de deriva fios de náilon externos à área de aplicação (1, 5, 10, 20, 50, 100 e 200m de distância) com quatro repetições e seis cilindros de espuma posicionados sobre a barra do... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Herbicida; Coletor de deriva; Pulverizador de barra; Aditivo. |
| Ano: 2014 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782014000300001 |
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| Murussi,Camila; Horn,Roberta Cattaneo; Santi,Adriana; Clasen,Barbara Estevão; Reis,Gabriel; Souza,Daniela; Bortolotto,Josiane Woutheres; Manfio,Candida Elisa; Loro,Vania Lucia. |
| Agricultural practices are directly related to the use of pesticides, which indiscriminately and without due care may contribute to the occurrence of numerous intoxications. Several studies have demonstrated the relationship of certain pesticides and the occurrence of oxidative stress and therefore, in recent years have developed methods of analysis of several biomarkers of cellular damage that can be measured and quantified. In this context, the objective of this study was to evaluate the possible changes in biochemical markers: glutamic aspartate aminotransferase (AST), alanine aminotransferase (ALT), creatinine, urea, total protein, and oxidative markers such as lipid peroxidation, damage to proteins and the activity of the enzymes acetylcholinesterase... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Rarmers; Oxidative stress; TBARS; Protein carbonyls. |
| Ano: 2014 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782014000701186 |
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| Cubero-Abarca,Robert; Moya,Roger; Valaret,Jorre; Tomazello Filho,Mario. |
| Coffee bean (Coffea arabica) processing generates high amount of residues that are sources of environmental pollution. Therefore, an appropriate solution is needed. The objective of this study was to determine the potential of coffee pulp to produce briquettes and pellets. The study included pulp drying (using air, solar and hot air methods); the production of briquettes and pellets; the evaluation of their energy, physical and mechanical properties; and the evaluation of pellet quality using X-ray densitometry. The results showed that the pulp presented an initial moisture content of 90%, resulting in drying times of 699, 308 and 55 hours for air, solar and hot air drying, respectively, and the calorific values of the pellets and briquettes were 12,501 kJ... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Coffee residues; Drying; Coffee processing; Biomass; Bio-resources. |
| Ano: 2014 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-70542014000500005 |
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| Allaman,Ivan Bezerra; Reis Neto,Rafael Vilhena; Freitas,Rilke Tadeu Fonseca de; Rosa,Priscila Vieira; Lago,Aline de Assis; Costa,Adriano Carvalho. |
| The knowledge of how animals deposited chemical components as water, protein, fat and ash in the carcass is importance for the formulation of a balanced diet, allowing maximum performance with a low environmental impact. So, the study was carried out to evaluate the influence of different tilapia strains (Chitralada, Commercial, Red and Universidade Federal de Lavras [UFLA]) on the deposition of bodily chemical components in the carcass. The bodily components analyzed were water, protein, fat and ash. For the determination of the bodily chemical deposition curves by age, the exponential, Brody, logistic, Gompertz and von Bertalanffy models were adjusted. The Commercial and UFLA strains deposited water at a faster speed (P<0.05) compared with the... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Bodily components; Nonlinear models; Fish; Growth. |
| Ano: 2014 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-70542014000500008 |
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| Rivera,Diego Fernando Remolina; Bertechini,Antonio Gilberto; Oliveira,Tiago Ferreira Birro; Castro,Solange de Faria; Oliveira,Henrique Braga; Bobadilla-Mendez,Manuel Fernando. |
| The effect of cholecalciferol (D3) and 25-hydroxycholecalciferol (25-OHD3) as isolated or associated sources of vitamin D (100%-0%, 75%-25%, 50%-50%, 25%-75%, 0%-100%) on the productive performance, egg quality, and bone characteristics was evaluated in white egg-laying hens fed two levels of calcium (Ca) and phosphorus (P) in the basal diet (BD) (BD1 = 0.38% Ca - 0.36% available P and BD2 = 3.2% Ca - 0.30% available P). Nine hundred and sixty Dekalb White hens (24 weeks old) were distributed into 80 cages, under a completely randomized factorial design for 16 weeks. The use of associated sources of vitamin D reduced the feed intake and feed conversion ratio, as well as BD1, which also increased the egg production and egg mass. The association of vitamin D... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Vitamin sources; Productive performance; Eggshell quality; Bone characteristics. |
| Ano: 2014 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-70542014000600006 |
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| Togoro,Aluísio Hideki; Silva,Juliana Aparecida dos Santos da; Cazetta,Jairo Osvaldo. |
| The use of pyroligneous acid (PA), a by-product of charcoal production, is an ancient practice applied in agriculture to control soil and plant pests and diseases. However, little is known about the chemical alterations that this product may cause on treated soil. Thus, the present work aimed to evaluate the effect of PA concentrations on soil ions movement and to verify possible soil chemical properties changes. Detachable columns were filled with Oxisol, submitted to application of 5 PA concentrations (0, 1, 2, 4, 8% v/v), followed by water infiltration in an amount corresponding to 1.5 times the soil total pore volume, and evaluated the soil of four depths (0-10, 10-20, 20-30, 30-40cm) and the leachate. The use of pyroligneous acid in concentrations up... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Soil fertility; Leaching; Wood vinegar. |
| Ano: 2014 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-70542014000200002 |
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| Ferreira,Daniel Furtado. |
| Sisvar is a statistical analysis system with a large usage by the scientific community to produce statistical analyses and to produce scientific results and conclusions. The large use of the statistical procedures of Sisvar by the scientific community is due to it being accurate, precise, simple and robust. With many options of analysis, Sisvar has a not so largely used analysis that is the multiple comparison procedures using bootstrap approaches. This paper aims to review this subject and to show some advantages of using Sisvar to perform such analysis to compare treatments means. Tests like Dunnett, Tukey, Student-Newman-Keuls and Scott-Knott are performed alternatively by bootstrap methods and show greater power and better controls of experimentwise... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Monte Carlo; Type I error; Power. |
| Ano: 2014 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-70542014000200001 |
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| Araújo Neto,Sebastião Elviro de; Campos,Pedro Arruda; Tavella,Leonardo Barreto; Solino,Antônio Jussier da Silva; Silva,Irene Ferro da. |
| The organic fruit crop should incorporate the principles of sustainable agriculture, with a guarantee of productivity coupled with ecological diversity, using techniques of policultive with regional species. The aim of the study was to evaluate the effect of the green manure crops [Canavalia ensiformis (jack beans), Crotalaria spectabilis (sunn hemp), Pueraria phaseoloides (tropical kudzu), Arachis pintoi (peanut forage) and spontaneous plants] and distance between espaliers on the yields of Passiflora edulis f. flavicarpa (passion fruit), Ananas comosus (pineapple), Zea mays (maize), Manihot esculenta (cassava) and biomass in organic polyculture in the state of Acre, Brazil. The randomized block design experiment comprised plots encompassing the space... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Organic intercropping; Cover crop; Yield; Land-use efficiency. |
| Ano: 2014 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-70542014000300004 |
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| Carducci,Carla Eloize; Oliveira,Geraldo César; Curi,Nilton; Rossoni,Diogo Francisco; Costa,Alisson Lucrécio; Heck,Richard Jonh. |
| Soil structure is modify when subjected to the agricultural process, i.e., a new spatial organization of the pores system is formed, with relation to the physical quality of it. Thus the aim of this work was to visualize and quantify, through X-ray CT scan, the pores distribution in an oxidic Latosol submitted to a conservation management system with different gypsum doses. Three random trenches were dug lengthwise along the plant row in a very clayey gibbsitic dystrophic Red Latosol, subjected to the following gypsum levels: G0: absence of gypsum; G7: 7 Mg ha-1 and G28: 28 Mg ha-1 of additional gypsum, applied to the surface of the plant row. Undisturbed soil samples were collected in plexiglass tubes at depths of 0.20-0.34, 0.80-0.94 and 1.50-1.64 m... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: X-ray CT scan; Spatial pore continuity; Pores distribution; Coffee crop. |
| Ano: 2014 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-70542014000500004 |
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| Marques,Rosângela Francisca de Paula Vitor; Mello,Carlos Rogério de; Silva,Antônio Marciano da; Franco,Camila Silva; Oliveira,Alisson Souza de. |
| Probabilistic studies of hydrological variables, such as heavy rainfall daily events, constitute an important tool to support the planning and management of water resources, especially for the design of hydraulic structures and erosive rainfall potential. In this context, we aimed to analyze the performance of three probability distribution models (GEV, Gumbel and Gamma two parameter), whose parameters were adjusted by the Moments Method (MM), Maximum Likelihood (ML) and L - Moments (LM). These models were adjusted to the frequencies from long-term of maximum daily rainfall of 8 rain gauges located in Minas Gerais state. To indicate and discuss the performance of the probability distribution models, it was applied, firstly, the non-parametric Filliben... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Probability distribution models; Intense rainfall; Statistical inference; Non-parametric statistical tests. |
| Ano: 2014 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-70542014000400003 |
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| Vendrame,Wagner; Faria,Ricardo Tadeu de; Sorace,Mauren; Sahyun,Sandra Aparecida. |
| Orchids are lush and highly valuable plants due to their diversity and the beauty of their flowers, which increases their commercialization. The family Orchidaceae comprises approximately 35,000 species, distributed among more than 1,000 distinct genera and 100,000 hybrids, totaling approximately 8% to 10% of all flowering plants. With the advance of agriculture and the constant destruction of their natural habitat, orchid species are collected in an indiscriminate manner by collectors and vendors, and this extractive activity threatens many species with extinction, drastically reducing their genetic variability in nature. Therefore, it is essential to seek alternatives that make the preservation of such species feasible using techniques with low... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Preservation; Orchidaceae; Ex situ conservation; Freezing tolerance; Extinction. |
| Ano: 2014 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-70542014000300001 |
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| Gomide,Plínio Henrique Oliveira; Silva,Marx Leandro Naves; Castro,Gislene Carvalho de; Soares,Cláudio Roberto Fonsêca Sousa; Oliveira,Anna Hoffmann; Curi,Nilton. |
| Gullies are an expression of intense environmental degradation, particularly soil and vegetation. The objective of this work was to characterize the natural regeneration and vegetation planted in gully areas in the south of Minas Gerais State, Brazil, so the distribution and occurrence of the species can generate useful information for an adequate diagnosis on the development stage of gullies and for soil conservation. The study involved the characterization of vegetation present in the different segments of the gully areas, the bed, the bare middle third (BMT), middle third with vegetation cover (MTVC), and a fragment of native vegetation (FNV) located closer to the gully areas and adopted as a reference. In the gully area 3, the sampling took place in... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Water erosion; Natural regeneration; Plant cover. |
| Ano: 2014 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-70542014000200006 |
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| Guimarães,Gilmara Santos; Silva,Fabiano Ferreira da; Silva,Luciano Lemos da; Galvão,Luísa Miranda Girardi; Santos,Lenon Machado dos; Alencar,Alfredo Machado. |
| Sheep farming is designated to economic exploitation, and dry matter intake is the most important factor that influences the performance of animal, thus seeking alternative foods. This study aimed to evaluate the effects of inclusion levels of cassava peel on intake, digestibility and performance of feedlot lambs. We used 32 crossbred lambs Santa Inês uncastrated, mean body weight of 21 ± 1.5 kg. Treatments were arranged in a randomized design to animals, with inclusion levels of cassava peel (0, 10, 20, 30%) in the diet dry matter and forage cassava leaf hay. During 70 days, there have been weighing the food provided, leftovers, and animals, and feces collection. The intake of dry matter (DMI), organic matter (OMI), crude protein (CPI), ether extract... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Average daily gain; Nutrition; Sheep. |
| Ano: 2014 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-70542014000300010 |
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| Urbano,Stela Antas; Ferreira,Marcelo de Andrade; Madruga,Marta Suely; Azevedo,Paulo Sérgio de; Bispo,Safira Valença; Silva,Emmanulle Cordeiro da. |
| The per capita consumption of sheep meat in Brazil is still small compared to meat originating from other animal species, the lipid profile of meat named as responsible for reduced consumption. Despite the influence of sex, breed, weight at slaughter and environment, diet is seen as a major factor influencing the lipid composition of sheep meat. This study evaluated the effect of replacing corn by corn germ meal (0, 25, 50, 75 and 100%) in the diet of Santa Inês sheep on the meat's chemical and lipid composition. Forty non-emasculated animals were distributed in a randomized block experimental design, with five treatments and eight replications, and slaughtered after 70 days of confinement. There was no influence of the substitution on the meat's chemical... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: CLA; Co-products; Lipid profile. |
| Ano: 2014 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-70542014000600007 |
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| Registros recuperados: 10.963 | |
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