检索结果-南通市图书馆

Turmeric on Poultry Production: A Review

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Agricultural Sciences 2019年第12期10卷 1592-1601页

作者： Christine Laganá Erika S. P. Braga Saldanha José Roberto Sartori patrícia helena nogueira turco Elisabeth Gonzales Renato Luis Luciano Greice Zanatta Vitor Barbosa Fascina Agência Paulista de Tecnologia dos Agronegócios Polo Regional do Leste Paulista and UPD Brotas Secretariat of Agriculture and Supply to the State of São Paulo (SAA) Monte Alegre do Sul Brazil Faculty of Veterinary Medicine and Zootechnics Botucatu Campus State University of São Paulo Botucatu Brazil Advanced Center for Poultry Agribusiness Technological Research of the Biological Institute (SAA) Descalvado Brazil

In the commercial poultry chain, a great diversity of production systems is found to meet the needs of the market, since the consumer has become increasingly aware of the importance of the relationship between diet and health, which has encouraged researchers and the food industry to develop products enriched with nutrients capable of producing beneficial effects on health. There has been increasing progress in research aimed at including viable alternative products, such as plant extracts, in poultry diets, which have been shown to have an antimicrobial and antioxidant action and to promote improvements in animal performance. Turmeric (Curcuma longa L.) is a popular medicinal herb, which shows a wide range of pharmacological properties, such as antioxidant, antiangiogenic, antitumor, antivenom, antinflammatory, antimicrobial, antiproliferative, antiprotozoal, and antiaging. The use of turmeric in poultry production has been reported by many researchers. The aim of this review is to describe and report the most recent research on the use of turmeric as feed supplement for birds and so its effect on animal health and welfare.

关键词： Plant Extracts Phytogenic Additives Curcumin Poultry Farming

Organic Agriculture： Socioeconomic Sustainability of Brazilian Coffee

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Journal of Agricultural Science and Technology(A) 2013年第1期3卷 20-32页

作者： Rubia Wegner patricia helena nogueira turco Faivia Maria de Mello Bliska Institute of Humanities and Soeial Sciences Federal Rural University of Rio de Janeiro Seropddica 23890-000 Brazil Department of Decentralization of Development S6o Paulo Agency of Agribusiness Technology Agriculture Secretary of S6oPaulo State Campinas P.O. Box 28 S6o Paulo 13012-970 Brazil Coffee Centre Agronomic Institute S~o Paulo Agency of Agribusiness Technology Agriculture Secretary of S6o Paulo StateCampinas P.O. Box 28 S6o Paulo 13012-970 Brazil

Worldwide, there is a growing demand for products made by technologies that contribute to environmental preservation and to sustainable rural development. In Brazil, organic farming is one of the most established initiatives in this area. Therefore, it is important to subsidize the decision-making regarding policies for organic coffee production. Thereby, this study analyzed the socio-economic sustainability of this production system in relation to conventional. We applied a semi-structured questionnaire on coffee farms in the Brazilian coffee producers states and analyzed the coffee production cost structure. We identified the reasons that led the producers to organic management, implications of certification on the management, and prices received by organic coffee and the market mechanism. Results showed that there is no standard for organic coffee production and marketing in Brazil. Among the producers, there are different levels of access to technical information and the main limitation of the organic coffee chain is not the technology of production, but the difficulty of coffee marketing. Another important limitation, for medium and large farms, is the cost of manpower, mainly in areas dominated by mountain, where machines operations are not viable. Moreover, the yield of organic coffee system is generally lower than the conventional. Furthermore, soil and climatic differences lead to different regional behavior. Finally, we could conclude that the production of organic coffee can be sustainable in Brazil mainly in two structural conditions： 1） family farmers; and 2） small producers, who employ only one or two workers, preferably only in the harvest time.

关键词： Sustainable development coffee crop production costs organic agriculture.

A comparative study on emergent pollutants photo-assisted degradation using ruthenium modified titanate nanotubes and nanowires as catalysts

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Journal of Environmental Sciences 2020年第6期32卷 38-51页

作者： Beatriz Barrocas M.Conceicao Oliveira helena I.S.nogueira Sara Fateixa Olinda C.Monteiro Centro de Química Estrutural Faculdade de CienciasUniversidade de LisboaLisboa 1749-016Portugal Centro Química Estrutural Instituto Superior TécnicoUniversidade de LisboaLisboa 1049-001Portugal Department of Chemistry CICECO-Aveiro Institute of MaterialsUniversity of AveiroAveiro 3810-193Portugal

Several methods have been used to tailor nanomaterials structure and ***,slight changes in the structure outcomes expressive improvements in the optical and photocatalytic properties of semiconductor *** this context,the influence of the metal doping and the morphology on a catalyst performance was studied in this ***,ruthenium doped titanate nanotubes(RuTNT)were synthesised for the first time using an amorphous Ru-containing ***,the photocatalytic performance of this sample was compared to the one obtained for ruthenium titanate nanowires(RuTNW),recently *** samples,RuTNW and RuTNT,were produced using the same Ru-containing precursor but distinct hydrothermal *** powders were structural,morphological and optical characterized by X-ray diffraction and fluorescence,transmission electron microscopy,Raman,X-ray photoelectron and photoluminescence *** variations on the structural and optical properties of the RuTNT and RuTNW nanoparticles,due to ruthenium incorporation were *** potential use as photocatalysts was evaluated on the hydroxyl radical photo-assisted *** samples were catalytic for this reaction,presenting better performances than the pristine counterparts,being RuTNT the best ***,the degradation of two emergent pollutants,caffeine and sulfamethazine,was *** demonstrated to be better photocatalyst than RuTNW for caffeine but identical performances were obtained for *** both catalysts,the degradation mechanism of the pollutants was explored through the identification and quantification of the intermediate compounds produced and several differences were *** indicates the importance of the structural and morphological aspects of a material on its catalytic performance.

关键词： Titanate nanotubes and nanowires Ruthenium doping Ru-Ti replacement Emergent pollutants Photocatalytic degradation

Impacts of Coffee Production in Agroforestry System for Sustainable Development

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Journal of Agricultural Science and Technology(B) 2013年第8期3卷 535-544页

作者： Flavia Maria de Mello Bliska patricia helena nogueira turco Antonio Bliska Jfinior Daniel Carvalho Nepomuceno Agronomic Institute Coffee Centre S6o Paulo Agency of Agribusiness Technology Agriculture Secretary of Sao Paulo StateCampinas Sao Paulo 13012-970 Brazil Department of Decentralization of Development Silo Paulo Agency of Agribusiness Technology Agriculture Secretary of SaoPaulo State Campinas Sao Paulo 13012-970 Brazil Faculty of Agricultural Engineering University of Campinas Av. Cdndido Rondon 501-Bar6o Geraldo Campinas S6o Paulo13083-875 Brazil

This study estimates the environmental and socioeconomic impacts of coffee production in the agroforestry system in the settlements of farmers located in the West of the state of Silo Paulo, Brazil, in the region known as Pontal of Paranapanema, aiming at the development of programs to support the growth of production sustainable coffee and programs to protect the coffee activity before the possible global climate change. The settlements are located in areas with sandy soils and highly degraded by human action Moreover, the region is considered marginal for the production of coffee, because it is subject to periods of high temperatures, prolonged drought and frost risk, which hinders the sustainability of farms. The environmental and socioeconomic impacts of agroforestry are analyzed through Ambitec-agro system, consisting of a set of indicators aimed at ex-post evaluation of the contribution of technological innovation to environmental, social and economic development of an agricultural activity. The system Ambitec involves：（1） general data collection about the technology; （2） application of questionnaires with adopters selected and insertion of data on impact indicators spreadsheets via platform MS-Excel and to obtain quantitative results and impacts partial indexes and aggregates the impact of technology selected; （3） analysis and interpretation of indices obtained, which vary between -15 and 15. The results indicate that agroforestry management can contribute to：（1） maintaining or increasing the sustainability of traditional coffee-growing regions in the case of sudden climate change; （2） the expansion of the coffee regions now considered unsuitable for the cultivation of coffee; （3） for sustainable regional development.

关键词： Climate changes sustainable development regional development coffee production.

Organic Coffee under Perspective of Energy Efficiency

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Journal of Agricultural Science and Technology(B) 2014年第1期4卷 15-20页

作者： patricia helena nogueira turco Osmar de Carvalho Bueno: Maura Seiko Tsutsui Esperancini Flavia Mariade Mello Bliska Department of Decentralization of Development Agriculture Secretary of S6o Paulo State Sao Paulo Agency of AgribusinessTechnology Campinas 13012-970 Sao Paulo Brazil Department of Economics and Rural Sociology Faculty of Agricultural Sciences of Botucatu Universidade Jfilio de MesquitaFilho Paulista State University Rua Josd Barbosa de Barros Botucatu 18603-970 Sao Paulo Brazil Agriculture Secretary of Sao Paulo State Sao Paulo Agency of Agribusiness Technology Coffee Centre Agronomic InstituteCampinas 13012-970 Sao Paulo Brazil

The energy analysis development in this study contributes to the understanding of the dynamics of the organic coffee productive system, in particular to assess the independence of this system with respect to the use of industrialized input products. Thus, it provides information about the sustainability of that production system. Technical itineraries used in this study consist of energy expenditure made with coffee cultivation, according to the type, source and form of energy inputs, agricultural machines, equipment and labor force used in that production system. The energy expenditure, converted into energy units, quantified the input energy. And the organic coffee production, measured in kilograms of processed coffee beans, was the output energy. Primary data used in this study were obtained from organic coffee producers in the Southern region of Minas Gerais State, Brazil, in 2011. Energy balance identified was positive, since the estimated output energy was 626.465 M J/ha and the energy expenditure was 112.998 M J/ha, during the useful life of the crop.

关键词： Energetic balance sustainable production coffee cultivation.

Glutamine and glutamate supplementation raise milk glutamine concentrations in lactating gilts

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Journal of Animal Science and Biotechnology 2012年第1期3卷 25-31页

作者： helena Emilia CCC Manso Helio C Manso Filho Luiz E de Carvalho Marianne Kutschenko Eduardo T nogueira Malcolm Watford Department of Animal Sciences Rural Federal University of PernambucoRecifePE52171-900Brazil Departament of Animal Sciences Federal University of CearáFortalezaCE60020-181Brazil Ajinomoto do Brazil S oPauloSP04015-001Brazil Department of Nutritional Sciences Rutgers UniversityNew BrunswickNJ08901USA.

Glutamine is the most abundant amino acid in milk, and lactation is associated with increased glutamine utilization both for milk synthesis and as a fuel for the enlarged small intestine. A number of recent studies have indicated that lactation is accompanied by a mild catabolic state in which skeletal muscle proteins are degraded to provide amino acids that are used to synthesize additional glutamine. In this study we tested the hypothesis that supplemental L-glutamine or the commercially available glutamine supplement Aminogut （2.5% by weight mixed into daily feed） provided to gilts from 30 days prior to parturition until 21 days post-parturition would prevent a decrease in skeletal muscle glutamine while increasing the glutamine content of the milk. Muscle glutamine content decreased （P 〈 0.05） in control animals during lactation but this was prevented by supplementation with either L-glutamine or Aminogut. In this study, neither lactation nor supplementation had any effect on plasma glutamine or glutamate content. Free glutamine, and the total glutamine plus glutamate concentrations in milk from the control and the Aminogut group rose （P 〈 0.05） during the first 7 days of lactation, with milk concentrations in the L-glutamine supplemented group showing a similar trend （P = 0.053）. Milk glutamate remained constant between day 7 and 21 of lactation in the control and L-glutamine supplemented groups, but by day 21 of lactation the free glutamine, glutamate, and glutamine plus glutamate concentrations in milk from Aminogut-treated gilts were higher than those of control gilts. Thus dietary glutamine supplementation can alleviate the fall in intramuscular glutamine content during lactation in gilts, and may alleviate some of the catabolic effects of lactation. Furthermore, the increased milk glutamine content in the supplemented gilts may provide optimum nutrition for piglet development.

关键词： glutamate glutamine lactation milk pig skeletal muscle

Concordance of the point-of-care circulating cathodic antigen test for the diagnosis of intestinal schistosomiasis in a low endemicity area

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Infectious Diseases of Poverty 2019年第3期8卷 99-100页

作者： Sergei Rodrigo Magalhaes de Sousa Isabelle helena Lima Dias Alvaro Luan Santana Fonseca Bianca Rodrigues Contente Joyce Favacho Cardoso nogueira Tatyellen Natasha da Costa Oliveira Stefan Michael Geiger Martin Johannes Enk Programa de Pos-Graduacao Strictu Sensu em Biologia Parasitaria na Amazonia da Universidade do Estado do Para Tv.Perebebui2623-MarcoBelemPA 66087Brazil Laboratorio de Parasitoses Intestinais Esquistossomose e Malacologia(LPIEM)Secgao de ParasitologiaInstituto Evandro Chagas/SVS/MSAnanindeuaParaBrazil

Background:The Kato-Katz technique is recommended worldwide for the diagnosis of intestinal schistosomiasis,detecting parasite eggs in feces of infected ***,new tests have been developed in order to facilitate diagnosis,*** detection of specific antigens secreted by schistosomes,such as the circulating cathodic antigen(CCA).The aim of this study was to evaluate the performance of the point-of-care circulating cathodic antigen test(POC-CCA)compared to the Kato-Katz technique in a low prevalence area in the Amazon Region,located in the municipality of Primavera,State of Para,***:Positivity rates of the POC-CCA test and the Kato-Katz technique were *** sensitivity,specificity,accuracy and kappa coefficient were determined by comparing both *** reference standard was established using 16 Kato-Katz slides,12 of the first fecal sample,two of the second and two of the third *** study also included the concordance between POC-CCA results and different numbers and combinations of Kato-Katz ***:The prevalence of schistosomiasis according to the reference standard or POC-CCA test reached a rate of 9.4%or 23.9%,respectively,among a total of 372 *** positivity rates by the Kato-Katz technique increased from 2.4 to 9.4%,according to the increase in the number of slides examined and fecal samples colleaed.A sensitivity of 55.6%,specificity 76.9%,accuracy 76%and k coefficient of 0.06 was observed by comparing one slide of the first sample and *** 6 slides from three different samples,two slides of each,with POC-CCA resulted in a sensitivity of 583%,specificity 78.4%,accuracy 77%and k coefficient of ***,the comparison of 16 slides from three different samples with POC-CCA revealed a sensitivity of 65.7%,specificity 80.4%,accuracy 79%,and k coefficient of ***:The immunochromatographic test has the potential to be an important tool to combat schistosomiasis because of its practi

关键词： Schistosoma mansoni Kato-Katz POC-CCA Accuracy Diagnosis Low prevalence area

Blood and Milk Glutamine + Glutamate and Milk Composition in Lactating Holstein Cows in Semi-Arid of Brazil

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Open Journal of Veterinary Medicine 2014年第12期4卷 322-328页

作者： Joyci Torres d’Paula Rafael Leonardo Vargas Martinez Telga Lucena de Almeida Craveiro Alves Stephania Katurchi Mendes Mélo Marianne Kutschenko Eduardo Terra nogueira helena Emília Cavalcanti da Costa Cordeiro Manso Hélio Cordeiro Manso Filho Departamento de Zootecnia Universidade Federal Rural de Pernambuco Recife Brazil Associaç ã o Pernambucana dos Criadores Recife Brazil Ajinomoto do Brasil S&atilde o Paulo Brazil

Our objectives were to measure glutamine (Gln) and glutamate (Glu) concentrations in the milk and blood of lactating Holstein cows, as well as milk composition and somatic cell count (SCC) throughout different stages of lactation. Samples were collected from 21 cows in the 1st, 2nd, 3rd, 5th and 10th months of lactation. It analyzed Gln and Glu in the blood and Gln, Glu, lactose, fat, protein and somatic cells in the milk. Also, it measured Gln and Glu in blood from these dairy cows’ calves. Results were analyzed using one-way ANOVA, T-test and Tukey’s test, with a 5% significance level. There was a difference in blood [Gln] in from dairy cows (P nd (~0.181 μmol/mL) and 5th (~0.190 μmol/mL) months of lactation and the highest at 10th month (~0.276 μmol/mL). Also there was a higher protein content in the 5th and 10th months of lactation (~3.61% each) when compared to the other months (P < 0.05). There was no difference in calves’ parameters and in all others parameters from dairy cows. We concluded that the lactation period produced a significant interference in blood [Gln] but not in milk [Gln] which may indicate increase in utilization or decrease in production of this amino acids during lactation in these cows under tropical conditions.

关键词： Amino Acid Lactation Bovine Ruminant