Encontrados 10 documentos, a visualizar página 1 de 1
Influência de variáveis ambientais na comunidade fitoplanctônica em reservatóri...
MELO, G.; MORAIS, M.; SOBRAL, M. do. C.As informações restritas ao monitoramento dos parâmetros físico-químicos da qualidade da água dos rios e reservatórios não são suficientes para descrever a qualidade da água dos mesmos. A avaliação dos parâmetros biológicos tem sido freqüente na avaliação de impactos ambientais, pois produzem informações que não só indicam a presença de poluentes, mas como estes interagem com o meio ambiente, proporcionando uma...
Transfering water among basins: an ecological assessment of Northeast Brazilian...
MELO, G.; SOBRAL, M. do C.; MORAIS, M.; TORREÃO, T.; MARWELL, D.The national project of the São Francisco river integration on northeast basins, lead by the Brazilian Ministry of National Integration, aims to transfer water from this river to different councils of the northeast semiarid region with limited water resources. This study aims to characterize the current ecological status of three northeast reservoirs that will receive water from the São Francisco River. In this...
Molecular genetic analysis of a cattle population to reconstitute the extinct A...
Ginja, Catarina; Penedo, Maria; Sobral, M.; Matos, José; Borges, Carla; Neves, D.; Rangel-Figueiredo, Teresa; Cravador, A.Abstract Background Decisions to initiate conservation programmes need to account for extant variability, diversity loss and cultural and economic aspects. Molecular markers were used to investigate if putative Algarvia animals could be identified for use as progenitors in a breeding programme to recover this nearly extinct breed. Methods 46 individuals phenotypically representative of Algarvia cattle were geno...
Molecular genetic analysis of a cattle population to reconstitute the extinct A...
Cravador, A.; Ginja, Catarina; Penedo, Maria; Sobral, M.; Matos, José; Borges, Carla; Neves, D.; Rangel-Figueiredo, TeresaBackground: Decisions to initiate conservation programmes need to account for extant variability, diversity loss and cultural and economic aspects. Molecular markers were used to investigate if putative Algarvia animals could be identified for use as progenitors in a breeding programme to recover this nearly extinct breed. Methods: 46 individuals phenotypically representative of Algarvia cattle were genotyped f...
Identification of descendants of an extinct bovine population from the Algarve ...
Sobral, M.; Roberto, C.; Navas, D.; Palmilha, Isabel; Lima, M. B.; Cravador, A.The morphology of a sample of four bulls and 43 cows, presumed to be descendants of the extinct cattle breed ‘Algarvia’ (AG), was used to assign their relationship with animals from other Portuguese autochthonous breeds – Arouquesa (AR), Barrosa˜ (BA), Cachena (CA), Marinhoa (MA), Maronesa (MO), Minhota (MN), Mirandesa (MI), (only bulls), Alentejana (AL), Garvonesa (GA), Mertolenga (ME) and Preta (PR). Standard...
Antibodies specific to infectious bronchitis in broilers in Ceará state, Brazil
Cardoso,W.M.; Gomes,L.P.; Romão,J.M.; Salles,R.P.R.; Teixeira,R.S.C.; Sobral,M.H.N.R.; Câmara,S.R.; Oliveira,W.F.The experiment was carried out to determine the antibody levels to infectious bronchitis virus (IBV) in 1120 broilers of two broiler flocks, both from the same parental flock and free from previous vaccination. Forty chicks of each line were alloted to the control group and the sera were tested by indirect ELISA. The vaccination program consisted on the administration of commercial vaccines against IBV at 10 an...
Avaliação da atividade antiviral e determinação do perfil cromatográfico de Hip...
Hofmann JR,A. E.; Seben,C.; Montanha,J.A.; Dutilh,J.; Sobral,M.; Henriques,A. T.; Zuanazzi,J. A. S.Plantas da família Amaryllidaceae são caracterizadas pela presença de alcalóides isoquinolínicos. Desde o primeiro estudo envolvendo alcalóides desta família em 1877, um grande número destas plantas tem sido analisado quimicamente. Estes compostos apresentam uma ampla variedade de atividades biológicas, tais como: antiviral, citotóxica, antitumoral e analgésica. Neste trabalho, foram avaliados o perfil cromatog...
Influence of mesh size and tooth spacing on the proportion of damaged organisms...
Gaspar, M. B.; Leitao, F.; Santos, M. N.; Sobral, M.; Chícharo, Luís; Chícharo, Alexandra; Monteiro, C. C.Experiments to assess the effect of mesh size and tooth spacing on the catch of Spisula solida were undertaken with the aim of determining an optimal combination of these two characteristics to minimize the dredging impact on by-catch species. However, our data showed that tooth spacing, mesh size and the interactions between these two factors did not affect the number of damaged macrofaunal individual’s caught...
Classification and morphological characterization of native Portuguese cattle b...
Sobral, M.; Cravador, A.; Navas, D.; Roberto, C.; Reis, Clara; Lima, M. B.A morphological study was carried out to characterize eight Portuguese cattle breeds by the application of numerical taxonomic methods.
Multicenter study of isolated micro-organisms resistant to antimicrobials in 10...
Cristino, J M; Hospital de Santa Maria, Lisboa.; Calado, E; Calheiros, I M; Costa, D; Costa, M N; Diogo, J; Felicio, M L; Ferro, M L; Da Fonseca, J CIn 1994, Microbiology Laboratories of ten Portuguese hospitals analysed isolated microorganisms found in blood and urine samples and studied antimicrobial susceptibilities of the most frequent bacterial pathogens. From 63780 blood samples, the most frequent were Staphylococcus spp. and from 69189 urine samples significant numbers of Escherichia coli, Enterococcus spp., Pseudomonas aeruginosa and Candida spp. we...
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