bluuebunny/crossref_metadata_2025_split huggingface dataset:
EFEITO DA ÁREA E PRODUTIVIDADE NA PRODUÇÃO DE ERVA-MATE NO BRASIL
Authors: Carmo Flavio Cipriano de Assis do , Fiedler Nilton Cesar , Silva Marcio Lopes da , Gonçalves Saulo Boldrini , Guimarães Pompeu Paes , Lira David Fagner de Souza e 
Published: July 2018

A presente pesquisa teve o objetivo de avaliar a taxa de crescimento da produção de folha seca de erva-mate no Brasil, em relação ao efeito sobre a área e sobre a produtividade. Para isso foi usado o modelo shift-share com o qual se verificou qual dessas duas variáveis mais contribuiu para a evolução da produção de erva-mate no país e nos estados do Paraná (PR), Santa Catarina (SC) e Rio Grande do Sul (RS) e em todo território nacional nos últimos anos no período de 1990 à 2015, estes dados foram obtidos através da base de dados do sistema SIDRA (Sistema IBGE de Recuperação Automática) do Instituto Brasileiro de Geografia e Estatística (IBGE, 2016). Considerando os resultados obtidos, foi observado que neste período o estado do Rio Grande do Sul representa o maior percentual de produção de folha seca de erva-mate no Brasil e o principal fator que explicou o crescimento da produção de erva-mate foi o efeito área produtiva.Palavra-chave: produtos florestais não madeireiros, colheita de erva-mate, economia florestal. EFFECT OF AREA AND PRODUCTIVITY IN THE PRODUCTION OF YERBA MATE IN BRAZIL ABSTRACT:The present work aimed to study the technological evolution of the production of dry leaf yerba mate, in relation to the effect on the area and on productivity. For this we used the shift-share model with which we found that these two variables contributed most to the progress in the production of yerba mate in the country and in the states of Paraná (PR), Santa Catarina (SC) and Rio Grande do Sul (RS) in recent years in the period 1990 through 2015, These data are obtained through the database of the SIDRA system (IBGE Automatic Recovery System) of the Brazilian Institute of Geography and Statistics (IBGE, 2016). Considering these results, it was observed that during this period the main factor that explained the increased production of yerba mate was the area effect, showing the need for technological advances such as fertilization, liming and cultivation for the species.Keywords: non timber forest products, harvesting erva-mate, forest economic.
EFEITO ALELOPÁTICO DE EXTRATOS AQUOSOS DE Prosopis juliflora (SW.) D.C. NA EMERGÊNCIA E NO CRESCIMENTO INICIAL DE PLÂNTULAS DE Mimosa tenuiflora (WILLD.) POIRET
Authors: Costa Romualdo Medeiros Cortez , Freire Antonio Lucineudo de Oliveira 
Published: July 2018

Os efeitos da liberação de aleloquímicos de uma espécie sobre outra podem resultar em danos ecológicos aos ecossistemas, como a facilitação de estabilização e povoamento de espécies invasoras. Com este trabalho, objetivou-se avaliar os efeitos alelopáticos de partes vegetais da algaroba, espécie invasora, sobre a emergência e o crescimento inicial de plântulas de jurema-preta, espécie nativa da Caatinga. Prepararam-se extratos aquosos de folhas, cascas e raízes da algaroba, usando 125 g de material vegetal para cada 500 mL de água destilada, nas concentrações 0, 25, 50, 75 e 100%. Foram utilizados tubetes de 55 cm3 preenchidos com solo. Distribuíram-se os tratamentos em delineamento inteiramente casualizado (DIC), com quatro repetições, cada uma com cinco tubetes. Avaliaram-se a porcentagem de emergência, altura, diâmetro do caule, número de folhas e peso seco de folhas, caule, raiz, parte aérea e total. A exceção do extrato de casca a 100% no peso seco total, todos os extratos causaram efeitos deletérios a emergência e plântulas de jurema-preta, sendo o extrato de raiz a 100%, o responsável pela maior redução na porcentagem de emergência, 33%, em compração com o tratamento controle.Palavra-chave: alelopatia, algaroba, invasão biológica, jurema-preta, semiárido. ALLELOPATHIC EFFECT OF AQUEOUS EXTRACTS OF Prosopis juliflora (SW.) DC IN THE EMERGENCE AND INITIAL GROWTH OF Mimosa tenuiflora (WILLD.) Poiret SEEDLINGS ABSTRACT:The effects of allelochemicals release of one species over another may result in ecological damage to ecosystems, such as facilitating the stabilization and settlement of invasive species. The objective of this study was to evaluate the allelopathic potential of different plant parts of Prosopis juliflora, invasive species, emergence and early growth of Mimosa tenuiflora, native species of Caatinga. The aqueous extracts of leaves, barks and roots from the algaroba were prepared at a ratio of 125 g of plant material to 500 ml of distilled water, diluted at concentrations of 0, 25, 50, 75 and 100%. For emergence and early growth, tubes were used in 55 cm3, with application of the extracts every 15 days. The treatments were also distributed in DIC, with four replications and five tubes by repetition. We evaluated the percentage of emergence, plant height, stem diameter, number of leaves, dry weight of leaves, stem, root, aerial and total parts. With the exception of 100% bark extract on the total dry weight of all the extracts caused deleterious effects the emergence and seedling jurema-preta, being the extract of root to 100%, responsible for the greater reduction in the percentage of emergency, 33%, in purchase with the control treatment.Keywords: allelopathy, algaroba, biological invasion, jurema-preta, semiarid.
INFLUÊNCIA DO TAMANHO DE PARCELA NO CÁLCULO DA DISTRIBUIÇÃO ESPACIAL DE Anadenanthera peregrina (L.) Speng. E Apuleia leiocarpa J. F. Macbr EM UMA FLORESTA ESTACIONAL SEMIDECIDUAL
Authors: Viana Aguida Beatriz Travaglia , Torres Carlos Moreira Miquelino Eleto , Fernandes da Silva Liniker , Silva Soares da Rocha Samuel José 
Published: July 2018

Objetivou-se com este estudo avaliar o comportamento dos índices de distribuição espacial das espécies Anadenanthera peregrina e Apuleia leiocarpa, em diferentes tamanhos de parcelas. Realizou-se um censo na Mata da Silvicultura, localizada em Viçosa, M.G. por meio do qual todos indivíduos das duas espécies, com DAP ≥ 20 cm, foram medidos e georreferenciados. Os dados foram agrupados em unidades amostrais de (10x10) m², (10x30) m², (10x50) m², (20x10) m², (20x30) m² e (20x50) m². O padrão de distribuição espacial das espécies foi identificado por meio dos índices de Payandeh (Pi), MacGuinnes (IGAi), Fracker e Brischle (Ki) e Morisita (IMi). Posteriormente, para cada tamanho de unidade amostral, selecionou-se aleatoriamente 10% do número total de parcelas e os índices foram calculados. Foram realizadas 10 repetições desse procedimento e a análise da distribuição espacial foi feita com base na média dos valores encontrados. O IGAi, Pi, e Ki foram diretamente proporcionais a área das parcelas e o IMi, inversamente proporcional. O IGAi apresentou as menores diferenças entre as médias das amostragens e os valores reais aferidos pelo censo. Diante disso, o IGAi foi o índice mais adequado para se estudar a distribuição espacial das espécies.Palavra-chave: análise espacial de árvores, índice de Morisita, agregação. PLOT SIZE INFLUENCE IN THE SPATIAL DISTRIBUTION CALCULATION OF Anadenanthera peregrina (L.) Speng. AND Apuleia leiocarpa J. F. Macbr IN SEMIDECIDUOUS SEASONAL FOREST ABSTRACT:The objective of this study was to evaluate the behavior of spatial distribution indexes of the species Anadenanthera peregrina and Apuleia leiocarpa, in different plot sizes. A forest census was carried out in the Mata da Silvicultura, located in Viçosa, M.G. through which all individuals of both species, with DBH ≥ 20 cm, were measured and georeferenced. The data were grouped into sampling units of (10x10) m², (10x30) m², (20x10) m², (20x10) m² and (20x50) m². The spatial distribution pattern of the species was identified through the Payandeh (Pi), MacGuinnes (IGAi), Fracker and Brischle (Ki) and Morisita (IMi) indexes. Subsequently, for each sampling unit size, 10% of the total number of plots were randomly selected and the indexes were calculated. Ten replicates of this procedure were perfomed and the spatial analysis was done based on the average of the values found. The IGAi, Pi, and Ki were directly proportional to the plot area and the IMi, inversely proportional. The IGAi presented the smallest differences between the sampling means and the real value measured by the census. Noted that, it was clear that the IGAi was the most adequate index to study a spatial distribution of the species.Keywords: tree spatial analysis, Morisita Index, aggregation.
CARACTERIZAÇÃO DO RESÍDUO DE MDF E SEU APROVEITAMENTO NA PRODUÇÃO DE PELLETS
Authors: Cunha Thammi Queuri Gomes da , Barbosa Pedro Vilela Gondim , Lima Pedro Augusto Fonseca , Pimentel Thalles Santiago , Peixoto Lucas Lemes de Souza , Sette Júnior Carlos Roberto 
Published: July 2018

O processamento dos painéis de MDF, para a fabricação de móveis, gera uma grande quantidade de resíduos que constituem passivo ambiental, podendo ser utilizados para geração de energia. O objetivo deste trabalho foi avaliar as características do resíduo de MDF e seu aproveitamento na produção de pellets, visando a aplicação energética. A caracterização energética do resíduo foi realizada por meio da química imediata (teores de cinzas, voláteis e carbono fixo) e do poder calorífico superior. Além disso, foram produzidos e avaliados pellets (características energéticas e físico-mecânicas). A avaliação das características do resíduo: poder calorífico superior (4427,8 kcal.kg-1) e química imediata (carbono fixo, materiais voláteis e cinzas foram 16,3; 82,3 e 1,4%, respectivamente) e dos pellets de MDF: densidade aparente (1,15 g.cm-3), a granel (0,61 g.cm-3), energética (2,6 a 5,5 Gcal.m-3) e durabilidade (99,87%) indicaram a viabilidade técnica do aproveitamento do material como fonte energética. As características energéticas e físico-mecânicas dos pellets de MDF atenderam as especificações de qualidade exigidas nas normas internacionais de comercialização, exceto para o diâmetro médio.Palavras-chave: materiais densificados, potencial energético, painéis. CHARACTERIZATION OF MDF RESIDUE AND ITS USE IN PELLET PRODUCTION ABSTRACT:The processing of MDF panels, for the manufacture of furniture, generates a large amount of residues that constitutes an environmental liability, and can be used for power generation. The objective of this work was to evaluate the characteristics of the MDF residue and its use in the production of pellets, aiming at the energetic application. The energetic characterization of the residue was carried out by means of the proximate analysis (ash, volatile and fixed carbon contents), calorific value. In addition, pellets were produced and evaluated (energy and physico-mechanical characteristics). The evaluation of the characteristics of the residue: high heating value (4427.8 kcal kg-1) and proximate analysis (fixed carbon, volatile materials and ash were 16.3, 82.3 and 1.4%, respectively) and pellets: density (1.15 g cm -3), bulk density (0.61 g cm -3), energy density (2.6-5.5 Gcal m-3) and durability (99.87 %) indicated the technical feasibility of using the material as an energy source. The energy and physical-mechanical characteristics of MDF pellets met the quality specifications required by international marketing standards, except for the average diameter.Keywords: densified materials, energetic potential, panels.
INTEMPERISMO ARTIFICIAL DE QUATRO REVESTIMENTOS APLICADOS EM MADEIRAS DE DUAS ESPÉCIES FLORESTAIS
Authors: Soares Aline Krolow , Pereira Roberto Lessa , Cademartori Pedro Henrique Gonzalez de , Dalla Costa Henrique Weber , Gatto Darci Alberto 
Published: July 2018

O presente estudo teve como objetivo investigar a resistência ao intemperismo artificial de quatro revestimentos aplicados nas madeiras de duas espécies florestais. Para tal, foram utilizadas seis árvores de Eucalyptus grandis e três árvores de Tetrorchidium rubrivenium as quais foram desdobradas para confecção de 50 amostras para cada espécie, com dimensões de 5,0x7,0x1,0cm (largura, comprimento e espessura, respectivamente). A superfície das madeiras foi revestida com quatro acabamentos: polistein, verniz marítimo, tinta branca base óleo e tinta branca base água. As amostras sem revestimento e revestidas foram submetidas ao ensaio de envelhecimento acelerado durante 480 horas. A resistência ao intemperismo artificial foi avaliada por meio das modificações colorimétricas e morfológicas ao longo da exposição das madeiras e em função da molhabilidade superficial. Os principais resultados mostraram que a superfície das madeiras tendeu a tons opacos após exposição de 480 horas. Foi observado que os revestimentos não evitaram o aumento da molhabilidade superficial. Após todo o período de exposição, as madeiras não apresentaram modificações morfológicas tais como rachaduras e descascamento dos revestimentos, o que denota importante característica de proteção à madeira.Palavras-chave: Eucalyptus, canemaçu, modificação da superfície, envelhecimento acelerado, durabilidade da madeira. ARTIFICIAL WEATHERING OF FOUR COATINGS APPLIED ON WOODS OF TWO FOREST SPECIES ABSTRACT:The present study aimed to investigate the resistance to artificial weathering of four coatings applied on wood from two forest species. Six trees of Eucalyptus grandis and three trees of Tetrorchidium rubrivenium were cut to produce 50 wood samples for each species with dimensions of 5.0x7.0x1.0 cm (width, length and thickness, respectively). Wood surface was coated with four finishing products: polistein, marine varnish, oil-based white paint and water-based white paint. The uncoated and coated wood samples were subjected to accelerated aging test for 480h. The artificial weathering resistance was evaluated by color changes and surface wettability. The main results showed the coated woods tend to opaque tones after the exposure for 480h. The coatings did not avoid the increase of the surface wettability. After the exposure, both woods did not present morphological changes, such as cracks and peeling into the coatings, which represent relevant characteristics for wood protection.Keywords: Eucalyptus, canemaçu, surface modification, accelerated aging, wood durability.
ÉPOCAS DE SEMEADURA DE MILHO NA REGIÃO NORTE DE MATO GROSSO
Authors: Pereira Cassiano Spaziani , Giese Ezequel , Fiorini Ivan Vilela Andrade , Lange Anderson 
Published: July 2018

Existem poucas informações sobre a melhor época de semeadura de milho, durante o período da “segunda safra” no norte de Mato Grosso. O objetivo do trabalho foi verificar o comportamento produtivo de três híbridos de milho, semeados em seis épocas, durante a “segunda safra,” ou “safrinha”, no norte de Mato Grosso, Sinop-MT. O experimento foi conduzido em um Latossolo Vermelho Amarelo distrófico típico argiloso, entre janeiro e julho de 2014. O delineamento experimental foi em blocos ao acaso, com quatro repetições em esquema fatorial 3 x 6. Utilizou-se três híbridos comerciais simples e “precoces”: Maximus®; Truck (Syn7316)® e Status (Syn7205)®. As épocas de semeadura ocorreram aos 0, 7, 14, 21, 28 e 35 Dias após a semeadura de 26/01, correspondendo as datas de 26/01; 02/02; 09/02; 16/02; 23/02 e 02/03 de 2014, respectivamente. Avaliou-se a altura de plantas, área foliar, massa seca, teor relativo de água e produtividade da cultura. No florescimento, os menores teores de água nas folhas ocorreram nas plantas semeadas entre os dias 16/02 e 23/02. O crescimento vegetativo do milho foi o menor na época de semeadura entre os dias 09/02 a 23/02. Os híbridos Truck®, Máximus® e Status® não apresentaram diferença de produtividade e são mais produtivos quando semeados no final do período de segunda safra, entre os dias 16/02 a 02/03.Palavras-chave: Zea mays L, milho segunda safra, matéria seca, área foliar, teor relativo de água. MAIZE SEED TIMES IN THE NORTH REGION OF MATO GROSSO ABSTRACT:Were not sufficient information’s about the best time sowing of corn crop, during period of maize off-season in the north of Mato Grosso. The objective of this work was to verify the productive behavior of three maize hybrids, sown in six seasons, during the "second harvest," in the north of Mato Grosso, Sinop-MT. The experiment was conducted in a typical clayey dystrophic Yellow Red Latosol between January and July 2014. The experimental design was a randomized complete block design with four replicates in a 3 x 6 factorial scheme. Three commercial hybrids were used: Maximus®; Truck (Syn7316) ® and Status (Syn7205) ®. Sowing times occurred on day after sowing of date based of 01/26; respectively for datas: 01/26; 02/02; 09/02; 16/02; 23/02 and 02/03 of 2014. The variables analyzed the height of plants, stem diameter, leaf area, dry matter, relative water content and crop productivity were evaluated. At flowering, the lowest leaf water contents occurred in the plants sown between February 16 and February 23. The maize vegetative growth was the lowest in the sowing season between 09/02 to 23/02. The Hybrids Truck, Maxima and Status had a productivity difference and are more productive when sown at the end of the second crop period, between February 16 to March 2.Keywords: Zea mays L., maize off-season, dry matter, leaf area, relative water content.
Interpretation of Serum 25-Hydroxy Vitamin D3 Concentartions in Sheep with Naturally Occurring Sarcoptic Mange
Authors: URAL Kerem , TUNCA Recai , URAL Deniz Alıç , ÇAMKERTEN İlker , ERDOĞAN Hasan , AYAN Adnan , GÜLTEKİN Mehmet , HAYDARDEDEOGLU Ali Evren , AYSUL Nuran , ERDOĞAN Songül 
Published: July 2018

Sarcoptes scabiei is probably the most common mite species in domestic animals. There is lack of evidence showing the current status of vitamin d reserves in sarcoptic mange infested sheep. Therefore the aim of the present study was to analyze serum 25 hydroxy vitamin D3 concentration among sheep with scabies. Microscopical examination of deep skin scrapings to those of 28 sheep presenting alopecia, crusting, lichenification and scaling showed presence of sarcoptic mange. Serum 25 OH D3 levels among infested sheep showed a statisticaly significant difference in sheep with sarcoptic mange (group I 25.53±13.30 mg/dl) in contrast to group II control sheep (84.70 ± 21.11 mg/dl). In conclusion vitamin d deficiency must be taken into consideration in scabeietic sheep which should requires vitamin d treatment promptly at correct dosages.
EFFECTS OF PROBIOTICS AND PHYTOEXTRACTS ON GROWTH AND IMMUNOMODULATING PERFORMANCES OF BROILER CHICKENS
Authors: Zuhra F. T. , Paul A. K. , Riad M. M. , Ahmed M. S. 
Published: July 2018

An investigation was carried out to find out the effects of probiotics and phytoextracts (Korolla- bitter melon, Triphala-traditional three herbal components and Safi-commercial polyherbal products) on growth, hemato-biochemical (TEC, TLC, ESR, Hb concentration, PCV, ALT, AST, Cholesterol, Tryglyceride, HDL and LDL) and immunomodulating performance of broiler chickens. The study was performed from February to April, 2017. A total of 150, seven-days-old broiler chicks were divided into five (05) groups using 30 chicks in each group. The group A was designated as control group (without probiotics and phytoextracts), with probiotics (Exolution®) Group B, with phytoextract (Korolla-bitter melon) Group C, Triphala-traditional three herbal components Group D and Safi Group E. Chicks were reared for 35 days and body weight were measured on weekly basis. Broilers were sacrificed at the end of 35 days and blood samples were taken for hematological analysis. Serum samples were also taken for biochemical tests. Broilers in all treatment groups were necropsied at the end of the experiment to observe and determine the weight of the gross lymphoid organs (spleen, thymus and bursa of Fabricious). Both body weight gain, hematological parameters like TEC, TLC, Hb concentration and PCV values and size of lymphoid organs (spleen, thymus, Bursa of Fabricious) were increased in birds supplemented with probiotics and phytoextracts as compared with control group. In biochemical parameters, AST and ALT values were decreased significantly (p<0.05 and p<0.01) in groups B, C, D, E from that of the control group. The findings of the experiment would help us to assess the use of proper feed additives as healthy growth promoter and immunomodulator in broiler chickens.
DETECTION OF MULTI–DRUG RESISTANT SALMONELLA FROM MILK AND MEAT IN BANGLADESH
Authors: Rahman M. A. , Rahman A. K. M. A. , Islam M. A. , Alam M. M. 
Published: July 2018

This study was conducted to investigate the prevalence of Salmonella spp. in milk, chicken meat and beef and to determine the multi-drug resistance (MDR) profile of Salmonella spp. in Mymensingh and Gazipur districts, Bangladesh. A total of 169 samples of milk (n=108), chicken meat (n=51) and beef (n=10) were collected from Bangladesh Agricultural University (BAU) dairy farm, American dairy farm, Gazipur and different small dairy farms of municipal area during July 2016 to June 2017. Salmonella spp. were isolated on various selective agar media such as: Salmonella-Shigella (SS) agar, Xylose-Lysine Deoxycholate (XLD) agar, Eosine-Methylene Blue (EMB) agar. Identification of Salmonella spp. was done by colony characteristics, Gram staining, biochemical test and Polymerase Chain Reaction (PCR). Multi-drug resistant Salmonella spp. was detected by disc diffusion test using 10 commonly used antibiotics. The overall prevalence of Salmonella spp. in all food samples was 21.89%. A total of 29 (56.86%) chicken meat, 02 (1.85%) milk, and 06 (60%) beef samples were Salmonella spp. positive. Antibiogram study showed that an overall 89.19% of Salmonella spp. was found multi-drug resistant. Specifically 100%, 66.67% and 93.10% of the Salmonella spp. isolates originated from milk, beef and chicken meat respectively were multi-drug resistant. The result of this study suggests that MDR Salmonella spp. is prevalent in the milk and meat which might cause public health hazard if proper hygienic measures are not undertaken at farm and marketing level.
SEASONAL VARIATION OF GILL, SKIN, MUSCLE, LIVER AND KIDNEY PATHOLOGY OF MRIGAL (Cirrhinus cirrhosus) IN CULTURAL POND FISHERIES, MYMENSINGH, BANGLADESH
Authors: Das D. R. , Chandra K. J. 
Published: July 2018

An investigation on the seasonal variation of gill, skin muscle, liver and kidney pathology of Mrigal (Cirrhinus cirrhosus) was carried out from four Government (Govt.) and four Private (Pvt.) fish farms, Mymensingh, Bangladesh during June, 2010 to May, 2012. Fish sampling and water quality parameters were monitored monthly basis. For histopathological studies skin, muscle, gill, liver and kidney were collected, processed and stained in Haematoxylin and Eosin. Histologically, Mrigal of different fish farms were more affected in colder months. All the investigated organs of Mrigal were exhibited few abnormalities during summer, however, mild hyperplasia, haemorrhage, partial loss of secondary gill lamellae, marked and hypertrophy was observed during the rainy season. Several pathological changes like necrosis, fungal granuloma, protozoan and monogenean cyst, vacuolation, melanomacrophase, haemorrhage, hypertrophy, hyperplasia and clubbing were recorded in all the investigated organs. Among them fish gills and skin were more affected followed by liver and kidney. In some cases, large bacterial colony and protozoan cyst were observed in the secondary gill lamellae of Mrigal. The ectoparasites were very common in gills and skin of all fishes. Water quality parameters were taken and management practices were investigated fortnightly interval in different farms. These were almost similar for all experimental ponds. The risk of being infestation by parasites of carp significantly (p<0.001) increased when the water quality parameters such as temperature, dissolved oxygen, pH, ammonia, hardness, alkalinity, transparency and depth of water etc. were not maintained the optimum level.