Institution
Ministry of Agriculture
Government•Rio de Janeiro, Brazil•
About: Ministry of Agriculture is a government organization based out in Rio de Janeiro, Brazil. It is known for research contribution in the topics: Chemistry & Salmonella. The organization has 1153 authors who have published 1189 publications receiving 14442 citations.
Topics: Chemistry, Salmonella, Detection limit, Quechers, Population
Papers published on a yearly basis
Papers
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TL;DR: The multivariate analysis identified the following risk factors (odds ratio, OR) associated with positive herds: purchase of breeding stock from cattle traders, occurrence of abortions over the last 12 months, and vaccination against brucellosis.
Abstract: Realizou-se um estudo para caracterizar a situacao epidemiologica da brucelose no Estado de Goias. O Estado foi estratificado em tres circuitos produtores. Em cada circuito foram amostradas aleatoriamente 300 propriedades e, dentro dessas, foi escolhido de forma aleatoria um numero pre-estabelecido de animais, dos quais foi obtida uma amostra de sangue. No total, foram amostrados 10.744 animais, provenientes de 900 propriedades. Em cada propriedade visitada aplicou-se um questionario epidemiologico para verificar o tipo de exploracao e as praticas de criacao e sanitarias que poderiam estar associadas ao risco de infeccao pela doenca. O protocolo de testes utilizado foi o da triagem com o teste do antigeno acidificado tamponado e a confirmacao dos positivos com o teste do 2-mercaptoetanol. O rebanho foi considerado positivo quando pelo menos um animal foi reagente as duas provas sorologicas. No estrato 1, a prevalencia foi de 7,7% [4,7-10,7%] para propriedades, e de 1,4% [0,99-1,7%] para animais. No estrato 2, foi de 19,5% [15,0-24,0%] para propriedades e de 2,6% [2,0-3,1%] para animais. No estrato 3, foi de 21,4% [16,7-26,1] para propriedades e 4,3% [3,7-5,0%] para animais. A prevalencia obtida para o Estado foi de 17,5% [14,9-20,2%] para propriedades e de 3,0% [2,7-3,3%] para animais. Os fatores de risco (odds ratio, OR) associados a condicao de foco, segundo a analise multivariada, foram: compra de reprodutores a comerciantes de gado (OR = 2,06 [1,12-3,52]), ocorrencia de abortos nos ultimos 12 meses (OR = 5,83 [3,86-8,8]) e pratica de vacinacao contra brucelose (OR = 2,07 [1,38-3,09]). Tanto a ocorrencia de aborto quanto a vacinacao sao, neste caso, consequencia da presenca de brucelose no rebanho.
59 citations
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TL;DR: A study to characterize the epidemiological situation of bovine brucellosis in the State of Sao Paulo was carried out, and farms with more than 87 bovines and introduction of breeding cattle were identified as risk factors for the disease.
Abstract: A study to characterize the epidemiological situation of bovine brucellosis in the State of Sao Paulo was carried out. The state was stratified in seven cattle production regions and 150 herds with reproductive activity were randomly selected within each one. A total of 1,073 herds were sampled. In a second stage, 10 or 15 cows older than 24 month age (in herds with <100 cows and herds ≥100 cows, respectively) were bled at random. A total of 8,761 animals were bled. Sera were tested using a serial testing procedure with the Rose Bengal test as the screening method and the Complement Fixation as the confirmatory method. The estimated prevalence of herds with at least one positive animal was 9.7% [7.8-11.6%], whereas the estimated prevalence of positive cattle was 3.8% [0.7-6.9%] in Sao Paulo State. An epidemiological questionnaire was applied in each farm, allowing the evaluation of the association of selected risk factors with the disease. The characteristics associated with the brucellosis infected herds were farms with more than 87 bovines (OR= 2.25) and introduction of breeding cattle (OR= 1.56).
59 citations
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TL;DR: The results reinforce the nutritive and antioxidant potential of Rubus ulmifolius in both maturation stages studied.
58 citations
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TL;DR: A proteomic-like technique is developed using liquid chromatography coupled to mass spectrometry with electrospray ionization able to differentiate and subsequently quantify CMP and pseudo-CMP in milk samples in order to identify adulteration or contamination of these products.
58 citations
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TL;DR: The method was suitable for routine screening purposes of 40 antibiotics, according to EC Guidelines for the Validation of Screening Methods for Residues of Veterinary Medicines, taking into consideration threshold value, cut-off factor, detection capability, limit of detection, sensitivity and specificity.
57 citations
Authors
Showing all 1177 results
Name | H-index | Papers | Citations |
---|---|---|---|
Otto R. Gottlieb | 36 | 325 | 6011 |
Paloma Melgarejo | 32 | 108 | 2679 |
Andrey Pereira Lage | 29 | 158 | 3081 |
Julián Santiago-Moreno | 28 | 154 | 2518 |
Antonio López-Sebastián | 28 | 112 | 2309 |
Paulo Sávio Lopes | 28 | 285 | 2994 |
Alice Y.M. Jones | 27 | 119 | 3218 |
Vitor Salvador Picão Gonçalves | 25 | 72 | 1565 |
José Soares Ferreira Neto | 24 | 142 | 2012 |
Zilca Campos | 22 | 64 | 1332 |
Rodrigo Barcellos Hoff | 21 | 60 | 1137 |
Rodinei Augusti | 21 | 27 | 1630 |
Fabiano Barreto | 20 | 72 | 1091 |
Márcio Machado Ladeira | 19 | 86 | 1018 |
Daniel Vidal Pérez | 19 | 115 | 1101 |