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| Registros recuperados: 11.642 | |
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| Urbano,Stela Antas; Ferreira,Marcelo de Andrade; Dutra Junior,Wilson Moreira; Andrade,Rafael de Paula Xavier de; Siqueira,Michelle Christina Bernardo de; Félix,Sabrina Carla Rodrigues. |
| Castor bean hulls (CBH), co-products of castor oil extraction, are high in dry matter (DM) and fiber and are emerging as alternative roughage in sheep feed. This could reduce feed costs since other sources of roughage can be more expensive. The effects of replacing Tifton 85 hay with CBH at 0, 33, 66 and 100% in the diet of sheep on the carcass characteristics, weights and yields of retail cuts and carcass measurements were studied. Twenty-eight non-castrated sheep averaging 7 ± 1.4 months of age with an initial weight of 19.5 ± 4.3 kg were slaughtered after 70 days of confinement. There was a linear decline (P ≤ 0.05) in slaughter body weight, empty body weight, hot and cold carcass weight and longissimus muscle area (LMA) as the percentage of dietary CBH... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Biodiesel; Morphometry; Sheep production; Ricinus comunis L. |
| Ano: 2013 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-70542013000100010 |
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| Venâncio,Vinícius Paula; Ferreira,Eric Batista; Brigagão,Maísa Ribeiro Pereira Lima; Paula,Fernanda Borges de Araújo; Barbisan,Luis Fernando; Azevedo,Luciana. |
| A. crassiflora Mart. a Brazilian savannah fruit, is a source of phytochemical compounds that possess a wide array of biological activities, including free radical scavenging. This native fruit proved to potentialize the mutagenic process in previous in vivo investigations. The aim of the present study was to investigate the effects of A. crassiflora Mart. pulp intake on colonic cell proliferation and on the development of Aberrant Crypt Foci (ACF) in male Wistar rats. The animals were fed with either a commercial diet or a diet supplemented with A. crassiflora Mart. pulp mixed in 1%, 10% or 20% (w/w) for 4 weeks or 20 weeks. The carcinogen 1,2-dimethylhydrazine dihydrochloride (4 doses, 40 mg kg-1 each) was used to induce colonic ACF. After euthanasia, the... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Aberrant crypt foci; Brazilian savannah; Dimethylhydrazine; Immunohistochemistry; Oxidative stress. |
| Ano: 2013 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-70542013000400008 |
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| Brito,Giovani Greigh de; Ferreira,Alexandre Cunha de Barcellos; Borin,Ana Luiza Dias Coelho; Morello,Camilo de Lelis. |
| Biotic and abiotic stresses can alter the hormone balance and trigger the activation of pathways involved in the cotton stress responses, resulting in the abscission of squares, flowers and young bolls and consequent reductions in the seed cotton yield and fiber yield. As part of the mechanism that primarily regulates the protective response of plants against stresses, ethylene is considered a key hormone involved in this response, and increased ethylene synthesis has been observed when plants are subjected to stress. Thus, the development of strategies aimed to mitigate their negative effects can reduce the shed rate of reproductive structures and positively impact cotton productivity. For this purpose, 1-methylcyclopropene (1-MCP), a compound that... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: AVG; 1-MCP; Ethylene; Gossypium hirsutum. |
| Ano: 2013 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-70542013000100001 |
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| Garcia,Tiago Resende; Rezende,Adalgiza Souza Carneiro de; Santiago,Juliano Martins; Almeida,Fernando Queiroz de; Fonseca,Mayara Gonçalves; Munõz,Ana. |
| The Mangalarga Marchador (MM) breed, valued for its marcha pace, has been excelling in functional activities such as marcha course. Considering the lack of information about sports physiology of the marcha horses, the development of training protocols and physical testing becomes essential and, in this context, the concentrations of blood gases and electrolytes provide additional information for the monitoring of metabolic changes induced by exercise. The goal of the study was to assess the hemogasometric responses and blood electrolyte concentration in MM mares during maximal effort treadmill tests carried out before and after training (trial 1) and between a maximal effort treadmill test and an incremental field test (trial 2). The trials assessed plasma... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Equine; Bicarbonate; Carbon dioxide; Oxygen. |
| Ano: 2013 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-70542013000600009 |
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| Cunha,João Paulo Arantes Rodrigues da; Nascimento,Ana Paula de Castro. |
| Pesticides can be applied by aircraft, ground-sprayers or sprinkler irrigation. However, selecting the best option is complicated by the limited number of studies comparing these techniques. Thus, the objective of this work was to study the chlorpyrifos insecticide deposition applied by aircraft (30 L ha-1), tractor-mounted sprayer (200 L ha-1) and chemigation (70,000 L ha-1) for the control of Spodoptera frugiperda (J.E. Smith) in two corn (Zea mays L.) populations (70,000 and 100,000 plants ha-1). Active ingredient residue on the corn plant leaves was evaluated by gas chromatography, immediately and ten days after the treatments. Armyworm numbers in each plot and control were also evaluated. The experiment was set up in randomized blocks with four... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Insecticide application technology; Fall armyworm; Chemigation; Sprayer. |
| Ano: 2013 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-70542013000200002 |
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| Leite,Paula Bacelar; Maciel,Leonardo Fonseca; Opretzka,Luiza Carolina França; Soares,Sergio Eduardo; Bispo,Eliete da Silva. |
| The "witch broom disease" caused by the fungus called Moniliophthora perniciosa is one of the most important cocoa diseases in Latin America, causing around 70% production reduction in the southern Bahia. In attempt to solve the problem, many cultivars resistant to the disease have been recommended to farmers. On the other hand, the chocolate flavour is composed by many compounds whose formation depends on the genetic background, environment where cocoa is grown and processing operations. Therefore, this work aimed at determining the monomeric phenolic compounds, methylxanthines and antioxidant activity of cocoa mass and dark chocolate from cocoa cultivars resistant to "witch broom disease" and non resistant to the disease. The total phenolic compounds in... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Functional food; Theobromine; Caffeine; Epicatechin; Catechin. |
| Ano: 2013 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-70542013000300007 |
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| Labarrère,Carla Rosa; Faria,Paulo Mário Carvalho de; Teixeira,Edgar de Alencar; Melo,Marília Martins. |
| Massive production, such as fish growing in water recirculation system, imposes challenges to animals capable of altering their homeostatic balance, and is able to affect their physiological performance. Therefore, the levels of ions and serum enzymes can be used as indicators of fish health. This study aimed to analyze the blood biochemistry profile of hybrid surubim (P. reticulatum X P. corruscans) submitted to different stocking densities in water recirculation system, in two distinct stages of production, from 150 to 400 g (first trial), and 400 to 1000 g (second trial). In the first trial, the five stocking rates were: 27.5, 47.5, 67.5, 87.5 and 107.5 fish/m³ of water. To obtain these densities, it was used 11, 19, 27, 35 and 43 fish per tank,... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Fish; Hybrid; Plasma biochemistry. |
| Ano: 2013 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-70542013000300008 |
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| Pires,Carolina Padovani; Saad,Flávia Maria de Oliveira Borges; Ogoshi,Rosana Cláudio Silva; Reis,Jéssica Santana dos; Santos,João Paulo Fernandes; Brunetto,Márcio Antonio. |
| Maintaining the pH of urine in the ideal range (6.2 - 6.4) is of great importance for health promotion in the lower urinary tract of cats. In the economic and standard feed sector this is a major concern, given that the animal urine tends to be alkaline after food consumption of those commercial segments, which predispose to the formation of struvite urolith. Therefore, this study aimed to study the effects of increasing levels of urinary acidifiers (0.0%, 0.3%, 0.6% and 0.9%, on a dry matter base) in feed with high excess base over the acid-basic balance in the organism, apparent digestibility coefficients of nutrients, urinary pH, hydro-electrolyte balance in cats, as well as the adequacy of equations proposed in the literature to estimate the urinary... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Feline; Blood gas; PH. |
| Ano: 2013 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-70542013000400010 |
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| Pinheiro,Patrícia Fontes; Queiroz,Vagner Tebaldi de; Rondelli,Vando Miossi; Costa,Adilson Vidal; Marcelino,Tiago de Paula; Pratissoli,Dirceu. |
| The thrips, Frankliniella schultzei, and green peach aphid, Myzus persicae, cause direct damage to plants of economic importance and transmit phytoviruses, causing large economic losses. Chemical constituents of essential oils present a wide range of biological activities. The aim of this work was to evaluate insecticidal activity of essential oil from citronella grass, Cymbopogon winterianus, on F. schultzei and M. persicae. This essential oil was obtained by steam distillation and components were identified by GC/FID and GC/MS. A Potter spray tower was used to spray insects with the essential oil. The major constituents are geraniol (28.62%), citronellal (23.62%) and citronellol (17.10%). Essential oil of C. winterianus at 1% (w v-1) causes mortality in... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Cymbopogon winterianus; Thrips; Green peach aphid; Volatile components; Natural insecticide. |
| Ano: 2013 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-70542013000200004 |
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| Souto,Cristielle Nunes; Lemos,Marcos Vinicius Antunes de; Martins,Graciela Pessoa; Araújo,Janaína Gomes; Lopes,Karina Ludovico de Almeida Martinez; Guimarães,Igo Gomes. |
| The optimal dietary digestible protein to energy ratio is critical for the success of fish farming. Considering that it provides the proper development of the animals, this study was undertaken to evaluate the effects of different dietary digestible protein to energy ratio in diets for goldfish fingerlings. Diets were formulated to contain 28.0, 35.0, 42.0 and 49.0% DP and 3,600 and 3,200 kcal/kg. The growth parameters evaluated were daily weight gain (DWG), feed intake (FI), feed conversion ratio (FCR), protein efficiency ratio (PER), protein productive value (PPV) and energy retention ratio (ERR) and specific growth rate (SGR). Regardless FI, all the parameters were affected by protein and energy levels and interaction between both factors was observed.... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Energy requirement; Feed intake; Growth protein requirement; Ornamental fish. |
| Ano: 2013 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-70542013000600008 |
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| Santos,Priscila Vincenzi dos; Paris,Wagner; Menezes,Luís Fernando Glasenapp de; Vonz,Douglas; Silveira,Magali Floriano da; Tubin,Jessica. |
| The Brazil sacrifices many dairy calves at birth, which can become a very serious problem merchandising. The objective of this experiment was to evaluate the physical carcass composition and meat quality characteristics of Holstein calves in feedlot or pasture with supplementation, slaughtered at 140, 180, 220 or 260 kg body weight. In the early termination calves had on average 57 kg and 58 days of age. The confined animals were fed forage (corn) and concentrated, in the ratio of 40:60 and concentrated pasture supplemented with 1% body weight. The experimental design was completely randomized in a factorial 2 x 4 (two feeding systems x four slaughter weights). It was observed a significant interaction between slaughter weight and finishing system only for... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Fat; Tenderness; Muscle; Marbling; Veal. |
| Ano: 2013 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-70542013000500008 |
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| Braga,Rafael Malfitano; Dias Junior,Moacir de Souza; Braga,Francisco de Assis; Protásio,Thiago de Paula. |
| Planted forests have been increasingly highlighted in the Brazilian scenario, maintaining status regarding their environmental effects, among them those related with soils. The objectives of this work were to evaluate and to compare the physical attributes of a typic distroferric Red Latosol under Eucalyptus cloeziana, E. grandis, E. Pilularis and Corymbia maculata coverage, 37 years after being planted at the Federal University of Lavras campus. The soil profiles were sampled down to 1 m depth in order to analyze their particle-size distribution, porosity, structure and water retention. The results were submitted to analysis of variance, Scott-Knott multiple means comparison test, correlations and linear regression. The profiles presented appropriated... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Soil porosity; Soil structure; Water retention in soil. |
| Ano: 2013 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-70542013000400004 |
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| Nunes,Cleiton Antônio; Souza,Vanessa Rios de; Corrêa,Síntia Carla; Silva,Marília de Cássia da Costa e; Bastos,Sabrina Carvalho; Pinheiro,Ana Carla Marques. |
| The main ways by which extra-virgin olive oil is consumed include direct application on salads or as an ingredient in sauces, but it is also been used by some for cooking, including frying and baking. However, it has been reported that under heat stress, some nonglyceridic components of olive oil are degraded. So, the effect of heating (at 50, 100, 150, and 200 °C for 2 h) on the volatile composition and sensory aspects of extra-virgin olive oil were evaluated. Heating altered the volatile composition of extra-virgin olive oil, mainly at higher temperatures (above 150 °C). The main modifications were related to the formation of large amounts of oxidized compounds, particularly large chain aldehydes. Sensory aspects were also altered when the oil was heated... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Vegetable oil; Sensory analysis; Chemical composition. |
| Ano: 2013 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-70542013000600010 |
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| Registros recuperados: 11.642 | |
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