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Teixeira B.B.,Federal University of Viçosa | Teixeira R.B.,Instituto Federal Minas Gerais IFMG | da Silva L.P.,Federal University of Viçosa | Torres R.A.,Federal University of Viçosa | And 2 more authors.
Ciencia Rural | Year: 2012

Data from two genetic groups UFV1 and UFV2 of meat-type quail, with 629 animals the first file and 707 the second, were evaluated by technique main components. The following characteristics were considered for analyses: bird weight (P1, P2, P3 and P4), egg average weight (POM1, POM2, POM3 and POM4), shell average weight (PCM1, PCM2, PCM3 and PCM4), yolk average weight (PGM1, PGM2, PGM3 and PGM4), egg average specific gravity (DM1, DM2, DM3 and DM4), egg average width (LOM1, LOM2, LOM3 and LOM4), egg average length (COM1, COM2, COM3 and COM4), number of eggs (N1, N2, N3 and N4), and age at the first egg (IDPO). After data collecting were carried analyses of the main components out with the aim to select the most explanatory characteristics. Next the highest significant characteristics in total variance had their genetic parameters and genetic correlations estimated. For genetic group UFV1 were: P1, PCM1, PCM3, PGM1, PGM2, PGM4, DM4, LOM2, LOM3, COM1 and IDPO. For UFV2: P1, P2, PCM1, PCM4, DM3, LOM2 and LOM4. The high estimates of heritability capacity found indicate a high variability for the characteristics of egg quality. The genetic correlations indicate the possibility of correlation between body weight gains and the quality of eggs. Little response to selection for egg production can be expected for these genetic groups.

de Oliveira P.H.,Instituto Federal Minas Gerais IFMG | Goncalves C.A.,FUMEC University | de Paula E.A.M.,Federal University of Minas Gerais
Perspectivas em Ciencia da Informacao | Year: 2013

This article examines the practices of knowledge management and innovation in a franchise of a major multinational company in the fast-food industry of Minas Gerais: Subway. As a research strategy, we used a descriptive case study and data were collected through a in-depth interview conducted with the owner of four stores in that franchise located in strategic areas of the city of Belo Horizonte. The results showed that the processes of creation, development and sharing of knowledge between the administrative and operational staff are encouraged and have achieved significant results, the franchise stores, as the theory claims. However, perhaps because of this business model (franchise), this knowledge produced and shared among such employees are not applied in its entirety on product innovation and operational processes on the sales, because most of the innovations developed in the environment and the franchisor, which restricts the space for innovation in franchised stores, in spite of satisfactory results in some innovation management processes.

Coelho H.,Instituto Federal Minas Gerais IFMG | Fernandes H.C.,Instituto Federal Minas Gerais IFMG | Campos D.S.,Federal University of Viçosa | Teixeira M.M.,Instituto Federal Minas Gerais IFMG | Leite D.M.,Federal University of Viçosa
Revista Ceres | Year: 2012

In tractors, the wheel sliding is caused by several factors, including the tractive effort required to move a certain implement and type of surface that is in contact with the tire treads. This study aimed at evaluating the wheel sliding of a tractor in different corn tillage systems in Bambuí, MG, Brazil. The experiment was conducted in the field in the second crop of autumn 2011 at the Minas Gerais Federal Institute - campus Bambuí (Experimental Station) in an Oxisol Ustox. The experiment was arranged in split-plots, with the operations in the plots, the gears in the splitplots and rotations in the split-splitplots, in a randomized block design with three replications, totaling eighty-one experimental units. The factors and levels studied were: (CT) conventional tillage (MT), minimum tillage (NT) and no tillage. Each treatment used three run speeds (A2, A3 and B1) in three motor rotations (1600, 1900 and 2200 rpm). The results showed that in the conventional tillage, the highest wheel sliding occurs in the sowing operation; in the minimum tillage, the highest wheel sliding occurs in the operation of scarification; and in no tillage system in the sowing operation.

Sasaki R.S.,Instituto Federal Minas Gerais IFMG | Teixeira M.M.,Federal University of Viçosa | Santiago H.,Federal University of Viçosa | Madureira R.P.,Federal University of Viçosa | And 2 more authors.
Ciencia Rural | Year: 2015

Adjuvants have been used in pesticide spraying, however, there is a need of further information about the effect of these products, especially when employing the electrostatic system. Thus, the aim of this study was to evaluate ten spray solution (nine adjuvants + control) concerning on physical properties (viscosity and electrical conductivity) and concerning on droplet spectrum and efficiency of droplet electrification in electrostatic spraying. The electrostatic sprayer Electrostatic Sraying Systems, MB 4.0 model, was used for this experiment. The Ostwald methodology was used to evaluate the viscosity, while the electrical conductivity was measured using a conductivity meter Marte, MB-11 model. The Faraday cage was used for the analysis of electric charges in the droplets and the droplets spectrum was obtained by the particle size analyzer Malvern Spraytech. Adjuvants tested altered the viscosity of the spray solution between 0.94 and 1.03mPa s. For the electrical conductivity it was observed that the water had the mean conductivity of 67.7µS cm−1, and depending on the adjuvant type it was obtained values up to 607.5µS cm−1. For the droplets electrification, there was an increasing up to 50.14% in the C/M ratio by using the adjuvants, demonstrating that adjuvants may assist the electrostatic spraying. Generally, adjuvants reduced the droplet diameter. © 2015, Universidade Federal de Santa Maria. All rights reserved.

Silva-Neto A.A.,Federal University of Pernambuco | Ferreira P.B.,Federal University of Pernambuco | Torres R.A.,Federal University of Pernambuco | Texeira R.H.F.,Parque Zoologico Municipal Quinzinho de Barros | And 4 more authors.
Brazilian Journal of Biology | Year: 2016

Paca (Cuniculus paca Linnaeus, 1766) is the second largest rodent found in Brazil. The quality of the meat and a long tradition of hunting have contributed to the decline of the natural populations of this species. Hunting of paca is strictly prohibited in Brazil, but in spite of this restriction, no forensic tools are available for the identification of the meat. We describe an efficient method, based on single nucleotide polymorphisms of the cytochrome b gene, that can be used to differentiate biological material derived from paca from those of domestic species commonly used as sources of meat. The identification of the presence of C. paca in the samples was 100% reliable. © 2016, Instituto Internacional de Ecologia. All rights reserved.

Goncalves F.G.,Federal University of Espirito Santo | Pinheiro D.T.C.,Instituto Federal Minas Gerais IFMG | Paes J.B.,Federal University of Espirito Santo | de Carvalho A.G.,Federal Rural University of Rio de Janeiro | Oliveira G.L.,Federal Rural University of Rio de Janeiro
Floresta e Ambiente | Year: 2013

In this research, weaimed to evaluate the natural resistance of ten forest wood species used in joinery to the attack of dry-wood termite Cryptotermes brevis in laboratory test. The wood species studied were amoreira (Chlorophora tinctoria), angelim-pedra (Hymenolobium petraeum), Anadenanthera columbrina var. cebil (angico-vermelho), Anadenanthera peregrina (angicoverdadeiro), Dalbergia nigra (jacaranda-da-bahia), Manilkara longifolia (paraju), Peltogine nitens (roxinho), Caesalpinia echinata (pau-brasil), Eucalyptus cloeziana and Eucalyptus torelliana. The woods studied were susceptible to C. brevisattack, except for A. columbrina and M. longifolia woods. H. petraeum, D. nigra and C. echinata woods showed lowermortality compared to other species. The highest levels of wood waste were observed in D. nigra, H. petraeum, C. echinata and E. cloeziana woods. C. tinctoria, P. nitens and E. torelliana woods presented superficial waste. Higher values oftermite mortality were observed in woods of greater density, and higher levels of extractives and ash. However, there is not one sole characteristic that could beused to relate the attackof termites to the woods studied.

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