Ministry of Agriculture

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.

Análise da variabilidade genética de arnica (Lychnophora ericoides Less. - Asteraceae) usando marcadores RAPDs

Abstract: O objetivo deste trabalho foi analisar e quantificar a variabilidade genetica entre e dentro das populacoes de arnica por meio de marcadores RAPD. Foram amostradas quatro populacoes na regiao geoeconomica do Distrito Federal: Parque Nacional de Brasilia (2), Fazenda Agua Limpa - UnB (1) e Reserva do Instituto Brasileiro de Geografia e Estatistica (IBGE) (1). Folhas de 24 individuos de cada regiao foram coletadas, totalizando 96 individuos. Num total de 105 iniciadores testados foram selecionados 15, totalizando 60 bandas polimorficas. Marcadores RAPDs selecionados foram analisados com a utilizacao dos programas NTSYS e Amova. O dendrograma obtido pelo metodo UPGMA e coeficiente de dissimilaridade Dice evidenciou quatro agrupamentos consistentes, com indice de dissimilaridade variando entre 62 a 71%. O teste de Mantel aplicado estabeleceu uma correlacao cofenetica com valores de r = 0.82, significando que as distâncias geograficas entre as populacoes amostradas estao correlacionadas com a distância genetica. A analise de AMOVA mostrou uma percentagem variabilidade genetica entre populacoes de 35,7% e dentro de populacoes de 64,3%, evidenciando uma alta variacao entre populacoes, sendo um importante resultado para definicao de uma estrategia de conservacao da especie que se encontra em situacao vulneravel a extincao.

Einige Verbesserungen von Nachweisen in der organischen Tüpfelanalyse

Abstract: Es werden Verbesserungen von Nachweisen von Alkoholen, Chloral, Salicylalkohol, Salicin, Sulfoxylatverbindungen und bestimmten reduzierenden organischen Verbindungen beschrieben, durch die man zu mikroanalytischer Empfindlichkeit und zum Teil auch zu erhohter Selektivitat gelangt.

Synanthropic diptera affecting layer poultry farms: a review

Abstract: The poultry farm of posture is an economic activity of great relevance to Brazil. Health aspects of flocks of laying chickens, such as the occurrence of infestations by parasites and poultry pests, influence significantly the productivity indicators. In this context, the control of synanthropic diptera is one of the challenges of the poultry farmers and professionals of this area. In Brazil, the control of flies in poultry environments is based mainly on the use of pesticides, while other alternatives are less frequent. Among the flies’ species most regularly found in poultry farms are the Musca domestica, Chrysomya spp., Fannia spp., and others. This review aims at compiling the literature on the occurrence, impact on poultry systems, biology, epidemiology and control of the species of synanthropic flies considered important for the Brazilian poultry industry.

Efeitos comportamental, clínico e analgésico promovidos pela injeção epidural preventiva de morfina, xilazina ou clonidina, em equinos

Abstract: Opioids and 2-agonists have analgesic effect and preventive administration by epidural route can minimize undesirable and clinical effects. So, behavioral, clinical and analgesic effects were evaluated for 24 hours after preventive epidural injection of morphine (0,1mg kg-1), xylazine (0,17mg kg-1) or clonidine (3µg kg-1) in 18 horses subjected to incisional model of inflammatory pain evaluated by von Frey filaments. Behavioral changes and changes in heart rate, respiratory rate, rectal temperature and height of head were minimum and transitory. Cutaneous sensivity in injured skin was similar to complete skin for 24, 8 and 12 hours after preventive epidural injection of morphine, xylazine and clonidine, respectively. Moreover, clinical and behavioral changes were not severe along 24 hours.