Search | SciELO

ABSTRACT The expression ‘you need to know to conserve’ is a well-known cliche among biologists. Documenting the richness of a group of organisms is the first step towards understanding biodiversity and preparing efficient conservation plans. In this context, many efforts have been made to quantify the number of species on Earth and estimate the number of species still unknown to science. A few countries have complete and integrated databases estimating the approximate number of species recorded for their territory, particularly in the Global South. In Brazil, a country of continental dimensions, revealing the richness of the second most diverse clade of invertebrates (=Mollusca) has been a goal of taxonomists. Recently, in an unprecedented, collective, and integrated effort among Brazilian malacologists, it was possible to estimate how many valid species of molluscs are there in Brazil. In this effort, more than 30 mollusc experts joined together to update the Taxonomic Catalogue of the Brazilian Fauna (TCBF), a governmental website that allows a quick and real-time updating of all Metazoan. So far, more than 5,000 updates have been made in TCBF, indicating the presence of 3,552 valid species of molluscs in Brazil, distributed among the main clades as follows: Caudofoveata (10 spp.), Solenogastres (6 spp.), Polyplacophora (35 spp.), Scaphopoda (43 spp.), Cephalopoda (92 spp.), Bivalvia (629 spp.) and Gastropoda (2,737 spp.). The present study, in addition to demonstrating for the first time the richness of Brazilian molluscs, also presents the state of the art of this important phylum of invertebrates highlighting its most representative and neglected groups.

https://doi.org/10.1590/s1984-4689.v40.e23026

Treatment with zolpidem after ethanol administration potentiates the expression of ethanol-induced behavioral sensitization in mice
Facebook Twitter

Other social networks
Google+
LinkedIn
Reddit
StambleUpon
CiteULike
Mendeley
Other networks

Metrics
- SciELO Analytics
- Dimensions
- PlumX
- Altmetric

Brandão, N.R.N.

; Libarino-Santos, M.

; Marinho, E.A.V.

; Oliveira, T.S.

; Borges, A.L.N.

; Oliveira, A.P.

; Oliveira-Campos, D.

; Azevedo-Souza, N.

; Santos, V.F.L.

; Berro, L.F.

; Oliveira-Lima, A.J.

Brazilian Journal of Medical and Biological Research

Journal Metrics
- Sobre o periódico
- SciELO Analytics

2020, Volume 53 N. 8 elocation e10034

Abstract: En | Text: En | PDF: En

Contradictory findings suggest that the behavioral and abuse-related effects of ethanol are mediated by its action at α1 subunit-containing GABAA (α1GABAA) receptors. In the present study, we investigated the effects of a sub-chronic post-ethanol administration treatment with zolpidem, an α1-preferring positive allosteric modulator at GABAA receptors, on the subsequent expression of ethanol-induced behavioral sensitization in mice. Animals received ethanol (1.8 g/kg, ip) or saline treatments every other day for 15 days (8 treatment sessions) and were subsequently treated with zolpidem (0.5 mg/kg, ip) or vehicle 4 times on alternate days. At the end of the treatment phase, animals were challenged with saline or ethanol on separate days for the evaluation of the expression of conditioned locomotion and behavioral sensitization. Eight-day treatment with ethanol did not lead to the development of ethanol-induced behavioral sensitization. Animals treated with ethanol and subsequently administered vehicle showed similar locomotion frequencies during the last ethanol challenge compared to the control group receiving ethanol for the first time. Animals treated with ethanol and subsequently administered zolpidem expressed behavioral sensitization to ethanol during the ethanol challenge. The present study adds to the literature by providing further evidence of a role of α1GABAA receptors on the behavioral effects of ethanol. Because of the current highly prevalent co-abuse of ethanol and benzodiazepine drugs in humans, the use of zolpidem and other α1GABAA receptor ligands during ethanol withdrawal should be monitored carefully.

https://doi.org/10.1590/1414-431x202010034 660 downloads

Where do we aspire to publish? A position paper on scientific communication in biochemistry and molecular biology
Facebook Twitter

Other social networks
Google+
LinkedIn
Reddit
StambleUpon
CiteULike
Mendeley
Other networks

Metrics
- SciELO Analytics
- Dimensions
- PlumX
- Altmetric

Baptista, M.S.

; Alves, M.J.M.

; Arantes, G.M.

; Armelin, H.A.

; Augusto, O.

; Baldini, R.L.

; Basseres, D.S.

; Bechara, E.J.H.

; Bruni-Cardoso, A.

; Chaimovich, H.

; Colepicolo Neto, P.

; Colli, W.

; Cuccovia, I.M.

; Da-Silva, A.M.

; Di Mascio, P.

; Farah, S.C.

; Ferreira, C.

; Forti, F.L.

; Giordano, R.J.

; Gomes, S.L.

; Gueiros Filho, F.J.

; Hoch, N.C.

; Hotta, C.T.

; Labriola, L.

; Lameu, C.

; Machini, M.T.

; Malnic, B.

; Marana, S.R.

; Medeiros, M.H.G.

; Meotti, F.C.

; Miyamoto, S.

; Oliveira, C.C.

; Souza-Pinto, N.C.

; Reis, E.M.

; Ronsein, G.E.

; Salinas, R.K.

; Schechtman, D.

; Schreier, S.

; Setubal, J.C.

; Sogayar, M.C.

; Souza, G.M.

; Terra, W.R.

; Truzzi, D.R.

; Ulrich, H.

; Verjovski-Almeida, S.

; Winck, F.V.

; Zingales, B.

; Kowaltowski, A.J.

Brazilian Journal of Medical and Biological Research

Journal Metrics
- Sobre o periódico
- SciELO Analytics

2019, Volume 52 N. 9 elocation e8935

Abstract: En | Text: En | PDF: En

The scientific publication landscape is changing quickly, with an enormous increase in options and models. Articles can be published in a complex variety of journals that differ in their presentation format (online-only or in-print), editorial organizations that maintain them (commercial and/or society-based), editorial handling (academic or professional editors), editorial board composition (academic or professional), payment options to cover editorial costs (open access or pay-to-read), indexation, visibility, branding, and other aspects. Additionally, online submissions of non-revised versions of manuscripts prior to seeking publication in a peer-reviewed journal (a practice known as pre-printing) are a growing trend in biological sciences. In this changing landscape, researchers in biochemistry and molecular biology must re-think their priorities in terms of scientific output dissemination. The evaluation processes and institutional funding for scientific publications should also be revised accordingly. This article presents the results of discussions within the Department of Biochemistry, University of São Paulo, on this subject.

https://doi.org/10.1590/1414-431x20198935 1769 downloads

Phytochemical Profile of Pasture Weeds from the Brazilian Cerrado
Facebook Twitter

Other social networks
Google+
LinkedIn
Reddit
StambleUpon
CiteULike
Mendeley
Other networks

Metrics
- SciELO Analytics
- Dimensions
- PlumX
- Altmetric

RODRIGUES, D.A.

; PEREIRA, G.A.M.

; SILVA, A.A.

; SANTOS, M.H.

; DEMUNER, A.J.

; OLIVEIRA, P.M.

Planta Daninha

Journal Metrics
- Sobre o periódico
- SciELO Analytics

2019, Volume 37 elocation e019181108

Abstract: Pt En | Text: Pt En | PDF: Pt | PDF: En

RESUMO: A grande diversidade de espécies vegetais nas pastagens do cerrado brasileiro com características ecofisilógicas diferenciadas indica a possibilidade de encontrar no conteúdo celular dessa flora compostos químicos com potencial para uso na agricultura, saúde humana e animal. Para comprovação dessa hipótese, serão necessárias três etapas: a prospecção fitoquímica, a caracterização dos metabólitos secundários e os estudos sobre as atividades biológicas desses metabólitos presentes nessas plantas. Nesta pesquisa foi traçado o perfil químico dos metabólitos secundários presentes em cinco espécies do cerrado brasileiro (Davilla elliptica, Remijia ferrugínea, Luehea paniculata, Anacardium occidentale e Acosmium dasycarpum). A coleta das plantas foi realizada em áreas de pastagem do município de Felício dos Santos, Minas Gerais. As amostras foram secas e submetidas a dois tipos de extrato (etanólico e hexânico). Empregando reações químicas específicas, constatou-se nos extratos hexânicos a presença de cumarinas, triterpenos/esteroides, e antracenosídeos e, nos extratos etanólicos, de alcaloides, triterpenos/esteroides, flavonoides, taninos, compostos redutores e antocianinas. As espécies apresentaram diversificadas classes de compostos. Entretanto, em todas as espécies foram encontrados triterpenos/esteroides, taninos, compostos redutores e antocianinas, sendo o emprego do solvente etanol o mais eficiente na extração dos compostos. A espécie D. elliptica foi a que apresentou o maior número de classes de compostos. Considerando a sua ampla aplicação na medicina popular, justificam-se novos estudos sobre atividade biológica dos diferentes metabólitos nas áreas agrícola e da saúde.

ABSTRACT: The great diversity of plant species in pastures of the Brazilian Cerrado with distinct ecophysiological characteristics indicates the possibility of finding, in the cellular content of this flora, chemical compounds with potential for use in agriculture and human and animal health. Three steps are necessary to prove this hypothesis: phytochemical prospecting, characterization of secondary metabolites, and studies on the biological activities of these metabolites present in these plants. The chemical profile of secondary metabolites present in five species of the Brazilian Cerrado (Davilla elliptica, Remijia ferruginea, Luehea paniculata, Anacardium occidentale, and Acosmium dasycarpum) was traced in this research. These plant species were collected in pasture areas of Felício dos Santos, Minas Gerais. The samples were dried and submitted to two types of extract (ethanolic and hexanic). By using specific chemical reactions, the presence of coumarins, triterpenes/steroids, and anthracenosides was observed in the hexanic extracts, while the presence of alkaloids, triterpenes/steroids, flavonoids, tannins, reducing compounds, and anthocyanins was observed in the ethanolic extracts. The species presented diverse classes of compounds. However, triterpenes/steroids, tannins, reducing compounds and anthocyanins were found in all species, being the use of the solvent ethanol the most efficient in extracting the compounds. The species D. elliptica presented the highest number of classes of compounds. The widespread application in folk medicine justifies further studies on the biological activity of different metabolites in agriculture and health areas.

https://doi.org/10.1590/s0100-83582019370100028 1636 downloads

Ventilation distribution as a contributor to the functional exercise capacity in patients with systemic sclerosis-associated interstitial lung disease without pulmonary hypertension
Facebook Twitter

Other social networks
Google+
LinkedIn
Reddit
StambleUpon
CiteULike
Mendeley
Other networks

Metrics
- SciELO Analytics
- Dimensions
- PlumX
- Altmetric

Andrade, F.M.

; Oliveira, A.D.

; Lopes, A.J.

Brazilian Journal of Medical and Biological Research

Journal Metrics
- Sobre o periódico
- SciELO Analytics

2019, Volume 52 N. 8 elocation e8513

Abstract: En | Text: En | PDF: En

Phenotypic differences have been described between patients with systemic sclerosis (SSc)-associated interstitial lung disease (ILD) and SSc-associated pulmonary hypertension, including performance differences in the 6-min walk test (6MWT). Moreover, the correlations between the 6MWT and traditional pulmonary function tests (PFTs) are weak, indicating the need to search for new parameters that explain exercise performance. Thus, our objective was to evaluate the impact of ventilation distribution heterogeneity assessed by the nitrogen single-breath washout (N2SBW) test and peripheral muscle dysfunction on the exercise capacity in patients with SSc-ILD and limited involvement of the pulmonary parenchyma. In this cross-sectional study, 20 women with SSc-ILD and 20 matched controls underwent PFTs (including spirometry, diffusing capacity for carbon monoxide (DLco), and the N2SBW test) and performed the 6MWT and knee isometric dynamometry. The 6-min walking distance (6MWD, % predicted) was strongly correlated with the phase III slope of the single-breath nitrogen washout (phase III slopeN2SBW) (r=−0.753, P<0.0001) and reasonably correlated with the forced vital capacity (FVC) (r=0.466, P=0.008) and DLco (r=0.398, P=0.011). The peripheral oxygen saturation (SpO2) during exercise was not significantly correlated with any of the pulmonary or muscle function parameters. The phase III slopeN2SBW was the only predictive variable for the 6MWD, whereas quadriceps strength and FVC/DLco were predictive variables for SpO2. Ventilation distribution heterogeneity is one factor that contributes to a lower 6MWD in SSc-ILD patients. In addition, muscle dysfunction and abnormal lung diffusion at least partly explain the decreased SpO2 of these patients.

https://doi.org/10.1590/1414-431x20198513 854 downloads

BEEF TALLOW AND EMULSIFIER IN GROWING-FINISHING PIG DIETS
Facebook Twitter

Other social networks
Google+
LinkedIn
Reddit
StambleUpon
CiteULike
Mendeley
Other networks

Metrics
- SciELO Analytics
- Dimensions
- PlumX
- Altmetric

SANTOS, KASSIA M.

; WATANABE, PEDRO H.

; FREITAS, EDNARDO R.

; NEPOMUCENO, RAFAEL C.

; OLIVEIRA, PAULA J.D.

; LIMA, VIRGÍNIA M.

; RODRIGUES, BÁRBARA B.V.

; NASCIMENTO, GERMANO A.J. DO

; CARVALHO, LUIZ E. DE

Anais da Academia Brasileira de Ciências

Journal Metrics
- Sobre o periódico
- SciELO Analytics

jun 2017, Volume 89 N. 2 Pages 1221 - 1230

Abstract: En | Text: En | PDF: En

ABSTRACT Two trials were aimed to evaluate beef tallow in diets with and without emulsifier on performance of pigs at growing-finishing phases. In the first trial, 15 barrows (22.03±0.62 kg) were distributed among three treatments: reference diet; test diet 1 (5% beef tallow) and test diet 2 (10% beef tallow). Beef tallow presented average value of 7130.97 kcal ME/kg. For the performance trail, 30 barrows (24.85±1.18 kg) were distributed among five treatments: T1 - diet with soybean oil and 3230 kcal ME /kg; T2 - diet with beef tallow and 3230 kcal ME/kg; T3 - diet with beef tallow and 3080 kcal ME/kg; T4 - diet with beef tallow, 3080 kcal/kg and 0.1% emulsifier; T5 - diet with beef tallow, 2930 kcal ME/kg and 0.1% emulsifier. Feed conversion was worse in animals fed diet with 3080 kcal ME/kg containing beef tallow and with 2930 kcal ME/kg with beef tallow and emulsifier. For economic availability, animals fed diet with beef tallow and 3230 kcal ME/kg and those fed diet with 3080 kcal ME/kg containing beef tallow and emulsifier, did not differ from animals fed diet with soybean oil, which enables the reduction up to 150 kcal ME/kg be compensated by emulsifier addition.

https://doi.org/10.1590/0001-3765201720160500 1700 downloads

PHYTOSOCIOLOGICAL SURVEY OF WEEDS IN ERECT PROSTRATE COWPEA CULTIVARS
Facebook Twitter

Other social networks
Google+
LinkedIn
Reddit
StambleUpon
CiteULike
Mendeley
Other networks

Metrics
- SciELO Analytics
- Dimensions
- PlumX
- Altmetric

BATISTA, P.S.C.

; OLIVEIRA, V.S.

; SOUZA, V.B.

; CARVALHO, A.J.

; ASPIAZÚ, I.

Planta Daninha

Journal Metrics
- Sobre o periódico
- SciELO Analytics

2017, Volume 35 elocation e017160273

Abstract: Pt En | Text: Pt En | PDF: Pt | PDF: En

RESUMO Objetivou-se com este trabalho caracterizar a fitossociologia de plantas daninhas em alguns das principais cultivares de feijão-caupi do Brasil, de porte ereto e prostrado, nas condições de cultivo do Norte de Minas Gerais. O ensaio foi conduzido em Janaúba, MG. Os tratamentos consistiram de cinco cultivares de porte ereto (BRS Guariba, BRS Tumucumaque, BRS Novaera, BRS Itaim e BRS Cauamé) e quatro de porte prostrado (BRS Marataoã, BRS Pajeú, BRS Pujante e BRS Xiquexique). As parcelas foram compostas por quatro fileiras de cinco metros, espaçadas de 0,5 m entre si, para os cultivares de porte ereto, e de 1,0 m, para os cultivares de porte prostrado. A amostragem das plantas daninhas foi realizada aos 50 dias após a semeadura, pelo método-padrão do quadrado inventário. As espécies foram identificadas e quantificadas e, em seguida, secas em estufa a 65 ºC por 72 horas e pesadas. Avaliaram-se as frequências, densidades e abundâncias, absolutas e relativas, o índice de valor de importância (IVI) e o índice de similaridade. Nos cultivares de porte ereto, destacaram-se as famílias Amaranthaceae, Euphorbiaceae, Asteraceae e Convolvulaceae com maiores IVI. Nos cultivares de porte prostrado, destacaram-se as famílias Amaranthaceae, Asteraceae e Malvaceae. Portulaca oleracea e Amaranthus spp. foram as espécies com maior IVI. O índice de similaridade entre os cultivares de porte ereto e prostrado foi de 72%, sendo que nove das 16 famílias ocorreram em cultivares dos dois portes. Os cultivares BRS Tumucumaque, de porte ereto, e BRS Pujante, de porte prostrado, apresentaram menor infestação de plantas daninhas.

ABSTRACT The goal of this study is to characterize the weed phytosociology in some major erect and prostrate cowpea cultivars in Brazil, in the Northern growing conditions of Minas Gerais state. The test was conducted in Janaúba, Minas Gerais state. The treatments consisted in five erect cultivars (BRS Guariba, BRS Tumucumaque, BRS Novaera, BRS Itaim and BRS Cauamé) and four prostrate ones (BRS Marataoã, BRS Pajeú, BRS Pujante and BRS Xiquexique). The plots were composed of four five meter rows, spaced 0.5 m apart, for erect cultivars and 1.0 m for the prostrated ones. Weed sampling was performed 50 days after sowing by standard Square Method. The species were identified and quantified, and then dried at 65 oC for 72 hours and weighed. The frequency, absolute and relative density and abundance, the importance value index (IVI) and the similarity index were evaluated. In the erect cultivars, the Amaranthaceae, Euphorbiaceae, Asteraceae and Convolvulaceae families stood out with higher IVI’s. In prostrate cultivars, the Amaranthaceae, Asteraceae and Malvaceae families stood out. Portulaca oleracea and Amaranthus spp. were the species with the highest IVI. The similarity index between erect and prostrate cultivars was 72%; nine of the 16 families occurred in both cultivars. BRS Tumucumaque, erect, and BRS Pujante, prostrate had lower weed infestation.

https://doi.org/10.1590/s0100-83582017350100031 1370 downloads

Effect of Syzygium cumini leaves on laying hens performance and egg quality
Facebook Twitter

Other social networks
Google+
LinkedIn
Reddit
StambleUpon
CiteULike
Mendeley
Other networks

Metrics
- SciELO Analytics
- Dimensions
- PlumX
- Altmetric

FREITAS, EDNARDO R.

; FERNANDES, DANILO R.

; SOUZA, DAVYD H.

; DANTAS, FRANCISCO D.T.

; SANTOS, REBECA C.

; OLIVEIRA, GILSON B.

; CRUZ, CARLOS EDUARDO B.

; BRAZ, NÁDIA M.

; CÂMARA, LORENA F.

; NASCIMENTO, GERMANO A.J.

; WATANABE, PEDRO H.

Anais da Academia Brasileira de Ciências

Journal Metrics
- Sobre o periódico
- SciELO Analytics

2017, Volume 89 N. 3 Pages 2479 - 2484

Abstract: En | Text: En | PDF: En

ABSTRACT The aim of this study was to evaluate the effect of Syzygium cumini leaves (SCL) in laying hens diets on productive performance, egg quality and lipid oxidation of yolk. A total of 108 Hysex White laying hens were distributed in a completely randomized design with three treatments and six replicates of six birds each. The treatments consisted of SCL inclusion at dietary levels of 0, 5 and 10 g/kg. There was no significant effect of SCL inclusion on feed intake, laying percentage, weight and egg mass, feed conversion ratio, Haugh units, specific gravity, percentage of yolk, albumen and egg shells and shell thickness. However, the inclusion of SCL significantly influenced the yolk color and yolk lipid oxidation measured by TBARS values. Yolk color increased and TBARS values decreased with the inclusion of SCL. The inclusion of SCL in laying hens diets improves pigmentation and lipid stability of yolk.

https://doi.org/10.1590/0001-3765201720150317 1417 downloads

PHYTOSOCIOLOGICAL SURVEY OF WEEDS IN CULTIVARS OF COMMON BEANS WITH DIFFERENT TYPES OF GROWTH IN THE NORTH OF MINAS GERAIS
Facebook Twitter

Other social networks
Google+
LinkedIn
Reddit
StambleUpon
CiteULike
Mendeley
Other networks

Metrics
- SciELO Analytics
- Dimensions
- PlumX
- Altmetric

BATISTA, P.S.C.

; OLIVEIRA, V.S.

; CAXITO, A.M.

; CARVALHO, A.J.

; ASPIAZÚ, I.

Planta Daninha

Journal Metrics
- Sobre o periódico
- SciELO Analytics

sep 2016, Volume 34 N. 3 Pages 497 - 507

Abstract: Pt En | Text: Pt En | PDF: Pt | PDF: En

RESUMO Objetivou-se com este trabalho caracterizar a fitossociologia de plantas daninhas em função de diferentes tipos de crescimento de cultivares de feijão-comum, no norte de Minas Gerais. O trabalho foi realizado em área experimental, localizada no município de Janaúba, MG. Os tratamentos consistiram de oito cultivares comerciais de feijão-comum de diferentes tipos de crescimento. O delineamento foi em blocos casualizados com três repetições. O preparo do solo foi convencional, e o plantio, realizado no mês de junho, com semeadoras manuais, no espaçamento de 0,5 m entre linhas. Realizou-se o levantamento fitossociológico em duas fases de cultivo do feijoeiro, nos estádios V3 e R8. Utilizou-se o método do quadrado inventário, com quadro de 0,25 m2, lançado aleatoriamente uma vez em cada parcela. As amostras de cada quadrado foram identificadas e quantificadas por família, gênero e espécie, sendo as plantas amostradas coletadas com estrutura completa. Em seguida, o material foi encaminhado para estufa de secagem com circulação forçada de ar a 65 ºC por 72 horas, para secagem e determinação da massa da matéria seca. Foram também estimadas a frequência relativa, densidade relativa e abundância relativa, para determinação do índice de valor de importância e índice de similaridade. No estádio V3, as espécies Sorghum halepense, Brachiaria plantaginea e Boerhavia diffusa apresentaram maiores índices de valor de importância. No estádio R8, Amaranthus viridis mostrou maior índice de valor de importância e massa seca. Nos cultivares de crescimento mais prostrado, as plantas daninhas apresentaram menores índices de valor de importância no estádio R8.

ABSTRACT The objective of this paper was to characterize the phytosociology of weeds in function of different types of growth of common bean cultivars in the North of Minas Gerais. The study was conducted in the experimental area, located in the municipality of Janaúba, MG. The treatments consisted of eight commercial cultivars of common beans with different types of growth. The design was done in randomized blocks, with three replications. The soil preparation was conventional and the planting was done in June, with manual seeders, with a 0.5 m spacing between rows. The phytosociological survey was performed in two phases of bean cultivation, in stages V3 and R8. The method used was the square inventory one, with a 0.25 m2 frame, randomly released once in each plot. Samples of each square were identified and quantified by family, genus and species, and the sampled plants were collected with their complete structure. Next, the material was sent to a drying greenhouse with forced air circulation at 65 oC for 72 hours, for drying and determination of weight of dry matter. We also estimated the Relative Frequency, Relative Density and Relative Abundance to determine the importance value index and similarity index. At the V3 stage, the species Sorghum halepense, Brachiaria plantaginea and Boerhavia diffusa had higher importance value indexes. At the R8 stage, the Amaranthus viridis specie showed higher importance value index and dry matter. In more prostrate cultivars, the weeds present lower importance value indexes at the R8 stage.

https://doi.org/10.1590/s0100-83582016340300010 1498 downloads

10.

Live performance, carcass quality, and economic assessment of over 100kg slaughtered pigs
Facebook Twitter

Other social networks
Google+
LinkedIn
Reddit
StambleUpon
CiteULike
Mendeley
Other networks

Metrics
- SciELO Analytics
- Dimensions
- PlumX
- Altmetric

Oliveira, E.A.

; Bertol, T.M.

; Coldebela, A.

; Santos Filho, J.I.

; Scandolera, A.J.

; Warpechowski, M.B.

Arquivo Brasileiro de Medicina Veterinária e Zootecnia

Journal Metrics
- Sobre o periódico
- SciELO Analytics

dec 2015, Volume 67 N. 6 Pages 1743 - 1750

Abstract: Pt En | Text: Pt En | PDF: Pt | PDF: En

RESUMO A evolução das linhagens sintéticas de suínos propiciou a obtenção de animais com potencial máximo de deposição proteica em pesos superiores; entretanto o peso ótimo de abate dessas linhagens não é conhecido. O objetivo do estudo foi avaliar o desempenho, características de carcaça e avaliação econômica de 417 suínos da linhagem Agroceres PIC abatidos com 100, 115, 130 e 145kg de peso vivo. Os suínos foram criados em baias com 10-11 machos ou fêmeas, com fornecimento programado de 2,8kg de ração por animal, por dia, a partir de 80kg até os pesos de abate (PA) de 99.65±0.82kg, 118.53±0.98kg, 133.97±1.17kg, e 143.90±1.24. Não houve interação entre sexo e PA (P>0,05). A espessura de toucinho, área de gordura e área de olho de lombo aumentaram linearmente com o PA (P<0,001; R² entre 70,12 e 77,44%), e o rendimento de carcaça aumentou de forma quadrática (P<0,001; R²=24,66%). A porcentagem de carne magra não foi afetada (P>0.05) e a conversão alimentar (R²=43,29%) apresentou discreta piora linear com o PA (P<0,001), mas o efeito sobre o custo de produção (R$/Kg) foi quadrático, com ponto de mínima aos 134,85kg. Conclui-se que, com o manejo utilizado, a elevação do PA resulta em aumento na quantidade de carne produzida sem alteração no seu rendimento e apresenta pouco efeito sobre o desempenho.

Recent genetic improvement has developed pigs with maximum potential for protein deposit at higher weights; however, their optimal slaughter weight still needs to be determined. The objective of the study was to evaluate live performance, carcass traits, and economic viability of 417 Agroceres PIC pigs slaughtered with 100, 115, 130, and 145kg live weight. Pigs were reared in pens with 10-11 barrows and gilts each, offered a feed allowance of 2.8kg/pig/day until the following slaughter weights (SW): 99.65±0.82kg, 118.53±0.98kg, 133.97±1.17kg, and 143.90±1.24. There was no interaction between sex and SW (P>0.05). Backfat thickness, fat area, and loin eye area linearly increased with SW (P<0.001; R2: 70.12-77.44%), and carcass yield increased in a quadratic manner (P<0.001; R²=24.66%). Lean yield was not affected (P>0.05), and feed conversion ratio (R²=43.29%) linearly worsened with SW (P<0.001), but the effect of SW on live production cost (R$/kg) was quadratic, with the minimum point at 134.8kg. It was concluded that, under the applied management, increasing SW results in larger amount of lean tissue with no change in its yield and little effect on growth performance.

https://doi.org/10.1590/1678-4162-7632 1965 downloads

11.

Meat quality and cut yield of pigs slaughtered over 100kg live weight
Facebook Twitter

Other social networks
Google+
LinkedIn
Reddit
StambleUpon
CiteULike
Mendeley
Other networks

Metrics
- SciELO Analytics
- Dimensions
- PlumX
- Altmetric

Bertol, T.M.

; Oliveira, E.A.

; Coldebella, A.

; Kawski, V.L.

; Scandolera, A.J.

; Warpechowski, M.B.

Arquivo Brasileiro de Medicina Veterinária e Zootecnia

Journal Metrics
- Sobre o periódico
- SciELO Analytics

aug 2015, Volume 67 N. 4 Pages 1166 - 1174

Abstract: Pt En | Text: Pt En | PDF: Pt | PDF: En

Foi avaliada a qualidade da carne e os cortes de suínos abatidos entre 100 e 145kg de peso vivo. Os suínos (417 machos castrados e fêmeas, linhagem Agroceres PIC) foram mantidos sob fornecimento programado de 2,8kg de ração por animal por dia a partir de 80kg até o abate aos: 100,71±0,85, 118,58±0,99, 134,07±1,18 ou 143,90±1,24kg de peso vivo. Destes, 71 suínos foram usados para avaliação dos cortes primários e secundários. Não foi observada interação entre sexo e peso de abate em nenhuma das variáveis avaliadas. Os pesos do pernil, da paleta e do carré aumentaram linearmente (P<0,01; R2entre 84,3 e 93,2%) com o peso de abate, com pouco efeito sobre o rendimento da carne. A coordenada vermelho/verde (valor de a*) aumentou linearmente (P<0,05) no lombo e de forma quadrática (P<0,01) no pernil com o aumento do peso de abate. A força de cisalhamento apresentou resposta quadrática (P<0,05), com redução até o valor mínimo estimado para os 122kg de peso vivo. Conclui-se que, com o manejo utilizado neste estudo, a elevação do peso de abate resulta em aumento na quantidade de carne produzida, com pouco efeito sobre o rendimento de carne. A carne de suínos abatidos em pesos elevados apresenta cor vermelha mais intensa e mesmo nível de gordura intramuscular que a carne de suínos mais leves, enquanto a maciez é alterada apenas de maneira discreta.

Meat quality and cut yield of pigs slaughtered between 100 and 150kg live weight were evaluated. Pigs (417 Agroceres PIC barrows and gilts) were fed a daily allowance of 2.8kg per head from 80kg until 100.71±0.85, 118.58±0.99, 134.07±1.18 or 143.90±1.24kg live weight. Seventy-one pigs were used for the evaluation of primal and subprimal cuts. There was no interaction between sex and slaughter weight for any of the evaluated parameters. Ham, shoulder, and loin weights linearly increased (P<0.01; R2: 84.3-93.2%) with increasing slaughter weight, which, however, had little effect on primal cuts meat yield. Increasing slaughter weight promoted a linear (P<0.05) and a quadratic (P<0.01) increase of red/green coordinate (a* value) of the loin and ham, respectively. Shear force showed a quadratic response (P<0.05), with minimum value estimated at 122kg slaughter weight. It was concluded that, under the applied management, increasing slaughter weight increased the volume of meat, but had little effect on meat yield. The meat of pigs slaughtered at heavier weights showed more intense red color and the same intramuscular fat content as lighter pigs, while tenderness was slightly affected.

https://doi.org/10.1590/1678-4162-8113 9569 downloads

12.

Effect of exercise training on Ca2+ release units of left ventricular myocytes of spontaneously hypertensive rats
Facebook Twitter

Other social networks
Google+
LinkedIn
Reddit
StambleUpon
CiteULike
Mendeley
Other networks

Metrics
- SciELO Analytics
- Dimensions
- PlumX
- Altmetric

Carneiro-Júnior, M.A.

; Quintão-Júnior, J.F.

; Drummond, L.R.

; Lavorato, V.N.

; Drummond, F.R.

; Amadeu, M.A.

; Oliveira, E.M.

; Felix, L.B.

; Cruz, J.S.

; Mill, J.G.

; Natali, A.J.

; Prímola-Gomes, T.N.

Brazilian Journal of Medical and Biological Research

Journal Metrics
- Sobre o periódico
- SciELO Analytics

nov 2014, Volume 47 N. 11 Pages 960 - 965

Abstract: En | Text: En | PDF: En

In cardiomyocytes, calcium (Ca2+) release units comprise clusters of intracellular Ca2+ release channels located on the sarcoplasmic reticulum, and hypertension is well established as a cause of defects in calcium release unit function. Our objective was to determine whether endurance exercise training could attenuate the deleterious effects of hypertension on calcium release unit components and Ca2+ sparks in left ventricular myocytes of spontaneously hypertensive rats. Male Wistar and spontaneously hypertensive rats (4 months of age) were divided into 4 groups: normotensive (NC) and hypertensive control (HC), and normotensive (NT) and hypertensive trained (HT) animals (7 rats per group). NC and HC rats were submitted to a low-intensity treadmill running protocol (5 days/week, 1 h/day, 0% grade, and 50-60% of maximal running speed) for 8 weeks. Gene expression of the ryanodine receptor type 2 (RyR2) and FK506 binding protein (FKBP12.6) increased (270%) and decreased (88%), respectively, in HC compared to NC rats. Endurance exercise training reversed these changes by reducing RyR2 (230%) and normalizing FKBP12.6 gene expression (112%). Hypertension also increased the frequency of Ca2+ sparks (HC=7.61±0.26 vs NC=4.79±0.19 per 100 µm/s) and decreased its amplitude (HC=0.260±0.08 vs NC=0.324±0.10 ΔF/F0), full width at half-maximum amplitude (HC=1.05±0.08 vs NC=1.26±0.01 µm), total duration (HC=11.51±0.12 vs NC=14.97±0.24 ms), time to peak (HC=4.84±0.06 vs NC=6.31±0.14 ms), and time constant of decay (HC=8.68±0.12 vs NC=10.21±0.22 ms). These changes were partially reversed in HT rats (frequency of Ca2+ sparks=6.26±0.19 µm/s, amplitude=0.282±0.10 ΔF/F0, full width at half-maximum amplitude=1.14±0.01 µm, total duration=13.34±0.17 ms, time to peak=5.43±0.08 ms, and time constant of decay=9.43±0.15 ms). Endurance exercise training attenuated the deleterious effects of hypertension on calcium release units of left ventricular myocytes.

https://doi.org/10.1590/1414-431X20144063 1936 downloads

13.

Aspectos clínicos e laboratoriais da mastite induzida por inoculação intramamária de Staphylococcus aureus em vacas e búfalas
Facebook Twitter

Other social networks
Google+
LinkedIn
Reddit
StambleUpon
CiteULike
Mendeley
Other networks

Metrics
- SciELO Analytics
- Dimensions
- PlumX
- Altmetric

Lazzari, A.M.

; Oliveira, M.V.S.

; Moreti, B.

; Guimarães, G.

; Krug, F.

; Noleto, G.

; Mesquita, A.J.

; Neves, J.P.

Arquivo Brasileiro de Medicina Veterinária e Zootecnia

Journal Metrics
- Sobre o periódico
- SciELO Analytics

oct 2014, Volume 66 N. 5 Pages 1299 - 1307

Abstract: Pt En | Text: Pt En | PDF: Pt | PDF: En

Vários aspectos relacionados à mastite bubalina precisam ser esclarecidos. Muitas condutas são adaptadas a essa espécie pelo conhecimento adquirido com a espécie bovina. Com este experimento, objetivou-se evidenciar particularidades da mastite em búfalas e vacas que tiveram uma glândula inoculada com 1,0 x 103 UFC de S. aureus. Os animais foram monitorados por cultura bacteriana do leite, California Mastitis Test(CMT), e escores para avaliação da severidade da mastite. Foram utilizados os seguintes critérios: temperatura retal, apetite, produção de leite (resposta sistêmica à inflamação), contagem de células somáticas (CCS), aparência/consistência da glândula e aparência da secreção láctea (resposta localizada à inflamação). Todos os animais desenvolveram mastite clínica superaguda. A bactéria foi recuperada de todas as glândulas desafiadas, sem diferença significativa no percentual de isolamento entre as espécies até o 11º dia pós-inoculação, porém com diferença (P<0,001) no 30º dia pós-inoculação. A CCS pelo método eletrônico e o CMT detectaram nas búfalas resposta mais intensa logo após a inoculação e diminuição mais rápida da contagem ao final do experimento, quando se comparou essa espécie com as vacas. Ambos os testes demonstraram correlação com a cultura bacteriana. Na avaliação da severidade da mastite, as médias do escore total, do escore da resposta local e do escore da resposta sistêmica foram mais elevadas na espécie bovina (P<0,05). Ao longo do período de observação, verificou-se uma capacidade superior das búfalas em recuperar o status sanitário adequado, chegando, ao final do experimento, com os parâmetros avaliados mais próximos dos fisiológicos.

Several aspects related to bubaline mastits need to be clarified. Many conducts are adapted to this species by the knowledge adquired with the bovine species. This experiment aimed to evidence particularities of mastits in buffaloes and cows submitted to one-gland inoculation with 1.0 x 103 CFU of S. aureus. The animals were monitored through bacterial culturing milk, California Mastitis Test (CMT) and scores to assess the severity of mastitis. The following criteria were used: rectal temperature, appetite, milk production (systemic response to inflammation), somatic cell count (SCC), appearance/consistency of the gland and appearance of the milk secretion (localized response to inflammation). All animals developed hyperacute clinical mastitis. The bacteria was recovered from all challenged glands, with no significant difference in the percentage of isolation between the species until day 11 after inoculation, but with a difference (p<0.001) on day 30 post inoculation. The SCC with the electronic method and CMT, detected in buffaloes a more intense response right after the inoculation and a faster decrease of counting by the end of the experiment, when compared to cows. In both tests correlation with the bacterial culture was detected. In assessing the severity of mastitis, the averages of total score, of the score of local response and the systemic response score were higher in the bovine species (P<0.05). Throughout the observation period, there was a higher capacity of buffaloes in reaching the appropriate sanitary status, coming to the end of the experiment with the parameters closer to the physiological.

https://doi.org/10.1590/1678-6908 2812 downloads

14.

Evaluation of cardiovascular toxicity of carbon nanotubes functionalized with sodium hyaluronate in oral regenerative medicine
Facebook Twitter

Other social networks
Google+
LinkedIn
Reddit
StambleUpon
CiteULike
Mendeley
Other networks

Metrics
- SciELO Analytics
- Dimensions
- PlumX
- Altmetric

Joviano-Santos, J.V.

; Sá, M.A.

; De Maria, M.L.A.

; Almeida, T.C.S.

; Geraldo, V.

; Oliveira, S.

; Ladeira, L.O.

; Ferreira, A.J.

Brazilian Journal of Medical and Biological Research

Journal Metrics
- Sobre o periódico
- SciELO Analytics

jul 2014, Volume 47 N. 7 Pages 560 - 566

Abstract: En | Text: En | PDF: En

It has been demonstrated that carbon nanotubes (CNTs) associated with sodium hyaluronate (HY-CNTs) accelerate bone repair in the tooth sockets of rats. Before clinical application of HY-CNTs, it is important to assess their biocompatibility. Moreover, cardiac toxicity may be caused by the translocation of these particles to the blood stream. The aim of this study was to evaluate possible changes in cardiovascular function in male Wistar rats whose tooth sockets were treated with either CNTs or HY-CNTs (100 μg/mL, 0.1 mL). Blood pressure and heart rate were monitored in conscious rats 7 days after treatment. Cardiac function was evaluated using the Langendorff perfusion technique. The data showed no changes in blood pressure or heart rate in rats treated with either CNTs or HY-CNTs, and no significant changes in cardiac function were found in any of the groups. To confirm these findings, experiments were conducted in rats injected intraperitoneally with a high concentration of either CNTs or HY-CNTs (0.75 mg/kg). The same parameters were analyzed and similar results were observed. The results obtained 7 days following injection indicate that the administration of low concentrations of CNTs or HY-CNTs directly into tooth sockets did not cause any significant change in cardiovascular function in the rats. The present findings support the possibility of using these biocomposites in humans.

https://doi.org/10.1590/1414-431X20143894 1729 downloads

15.

Estimativa do intervalo pós-morte em um canino (Canis lupus familiaris Linnaeus 1758) pela entomologia forense em Cabedelo-PB, Brasil: relato de caso
Facebook Twitter

Other social networks
Google+
LinkedIn
Reddit
StambleUpon
CiteULike
Mendeley
Other networks

Metrics
- SciELO Analytics

Martins, G.

; Santos, W.E. dos

; Creão-Duarte, A.J.

; Silva, L.B.G. da

; Oliveira, A.A.F.

Arquivo Brasileiro de Medicina Veterinária e Zootecnia

Journal Metrics
- Sobre o periódico
- SciELO Analytics

aug 2013, Volume 65 N. 4 Pages 1107 - 1110

Abstract: Pt En | Text: Pt En | PDF: Pt | PDF: En

O intervalo pós-morte (IPM) é um instrumento importante de diagnóstico relacionado à prática forense. O uso de insetos tem sido relatado como um modo eficiente para estimá-lo, quando o cadáver encontra-se em estágio avançado de decomposição. Objetivou-se com este trabalho estimar o IPM com base em evidências entomológicas em um canino. Foram coletadas larvas de moscas no cadáver e encaminhadas ao laboratório de entomologia, onde foram criadas e eclodiram adultos da espécie Chrysomya albiceps (Wiedemann, 1819). Somando-se os dados abióticos de temperatura e umidade relativa do local de coleta e do local de criação, estimou-se um IPM mínimo de 3,34 dias do momento da postura dos ovos pelas moscas até a coleta das larvas. Com base nos resultados obtidos, conclui-se que a entomologia forense, como ferramenta para estimativa do IPM, mostrou-se eficaz e determinante na elucidação do caso em questão.

The postmortem interval (PMI) is an important tool for diagnosis related to the forensic practice. The use of insects has proved to be an efficient diagnosis tool when the cadaver is in advanced decomposition stage. The objective of this work was to estimate PMI based on entomological evidence in a canine. Fly larvae was collected from the cadaver and forwarded to the Entomology laboratory. The fly larvae were reared and hatched adults of Chrysomya albiceps (Wiedemann 1819). With these insects and the abiotic data of temperature and relative humidity, from the places of collection and rearing larvae, a minimum PMI of 3.34 days from the laying of eggs by the flies until the time that we collected the larvae was obtained. The results show that Forensic Entomology as tool to estimate PMI is decisive and effective in the elucidation of the case.

8203 downloads

Showing

itens per page

Page of 3 Next

Select one or more results

All Alphabetic

Results

Comparative chart Download CSV

Statistics of

Send result

To*

Use ; (semicolon) to insert more emails.

Send to email

This page

Selected records

All references (max. 300)

Your email

Subject

Comments

Export format:

RIS (for EndNote, ProCite, Reference Manager, RefWorks, Citavi, etc.)

BibTeX

Citation

CSV (for Excel, etc)

Export:

This page

Selected itens

All references (max. 2000)

Sem resultados

No documents were found for your search

Glossary and search help

You can enrich your search in a very simple way. Use the search indexes combined with the connectors (AND or OR) and specify more your search.

For example, if you want to search for articles about
cases of dengue in Brasil in 2015, use:
ti:dengue and publication_year:2015 and aff_country:Brasil

See below the complete list of search indexes that can be used:

Index code	Element
ti	article title
au	author
kw	article keywords
subject	subject (title words, abstract and keywords)
ab	abstract
ta	journal short title (e.g. Cad. Saúde Pública)
journal_title	journal full title (e.g. Cadernos de Saúde Pública)
la	publication language code (e.g. pt - Portuguese, es - Spanish)
type	document type
pid	publication identifier
publication_year	publication year of publication
sponsor	sponsor
aff_country	country code of the author's affiliation
aff_institution	author affiliation institution
volume	article volume
issue	article issue
elocation	elocation
doi	DOI number
issn	journal ISSN
in	SciELO colection code (e.g. scl - Brasil, col - Colômbia)
use_license	article usage license code

SciELO - Scientific Electronic Library Online
Rua Dr. Diogo de Faria, 1087 – 9º andar – Vila Clementino 04037-003 São Paulo/SP - Brasil
Email: scielo@scielo.org

All the contents of this site www.scielo.br, except where otherwise noted, is licensed under a Creative Commons Attribution License.
more »