Navegando por Autor "SALES, Gustavo Aguiar"

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Acesso aberto (Open Access)
Brucella abortus detected in cheese from the Amazon region: differentiation of a vaccine strain (B19) from the field strain in the states of Pará, Amapá and Rondônia, Brazil
(Universidade Federal do Pará, 2016-08) BRITO, Jacqueline da Silva; MORAES, Carina Martins de; SILVA, Cleyzer Lopes; SALES, Gustavo Aguiar; KEID, Lara Borges; MATOS, Paulo Cesar Magalhães; LARA, Ana P.S.S.; MORAES, Carla Cristina Guimarães de
Brucellosis is an infectious-contagious disease responsible for significant economic losses to the meat and milk supply chain, because it causes reproductive disorders in animals and is a chronic anthropozoonosis. This study was designed to detect the DNA of Brucella spp. in cheese and to differentiate between a vaccine strain (B19) and the field strain. Sixty-six samples of different cheeses which are produced and marketed in three states of the Brazilian Amazon region (Amapá [5 samples], Pará [55 samples] and Rondônia [6 samples]) were evaluated. Thirty-nine of these samples were from cheeses made from cow's milk, and 27 were from cheeses made from buffalo milk. Four of the 66 samples were from cheeses produced in milk processing plants regulated by the Federal Inspection Service (Serviço de Inspeção Federal); nine of the samples were from cheeses produced in processing plants regulated by the State Inspection Service (Serviço de Inspeção Estadual); five of the samples were from artisanal cheeses; and the remaining 48 samples were from informally produced cheese. DNA was obtained from the samples following a DNA extraction protocol, and PCR was conducted using primers B4 and B5 to detect Brucella spp. Primers eri1 and eri2 were used to differentiate the field strain from the B19 vaccine strain. The results showed that 21.21% (14/66) of the samples were positive for Brucella spp., of which 21.43% (3/14) were positive for the B. abortus field strain, and 7.14% (1/14) were identified as harboring vaccine strain B19. These results demonstrate that it is possible to identify Brucella spp. in cheese from the Amazon region using the PCR technique and to differentiate the B. abortus field strain from the B19 vaccine strain.
Acesso aberto (Open Access)
Relação entre a biometria ultra-sonográfica em modo B do bulbo ocular e os diâmetros fronto occiptal e bizigomático em Canis familiaris
(2009-04) CARVALHO, Poliana Silva Beserra; SALES, Gustavo Aguiar; SANTANA, Expedito Junior de Matos; MIRANDA, Stefânia Araújo; BRITO, Adriel Behn de; NIKOLAK, Elizabete; DOMINGUES, Sheyla Farhayldes Souza
In the experiment 31 healthy mongrel dogs, 8 months to 7 years of age, were used, 10 males and 21 females, weighing 1.5-28 kg. Initially, fronto-occipetal (FOD) and bizigomatic (BZD) diameters were measured using a caliper. The ophthalmologic transpalpebral B-mode ultrasonography (US) was performed to measure the ocular bulbi structures, as follows: The cornea thickness (D1), distance between cornea and anterior lens capsule (D2), distance between cornea and posterior lens capsule (D3), lens thickness (D4), lens diameter (D5), lens area (D6), distance between posterior lens capsule and retina (D7), distance between anterior lens capsule and retina (D8), and the distance between cornea and retina (D9). Except for D4, there were effect of FOD and BZD on the measures of the internal structures of BO. The Lineal Regression Analysis between the measures of the internal oculars structures and DFO and DBZ were significant for D1, D2, D3, D4, D5, D6, D7, D8 and D9.