As resistências aos antibióticos constituem, simultaneamente, uma preocupação de saúde pública e de saúde animal, devido à utilização dos mesmos princípios ativos em medicina humana e medicina veterinária e à possibilidade de transmissão de bactérias resistentes entre os animais e o homem, através da cadeia alimentar e do meio ambiente. A utilização de antibióticos conduz inevitavelmente à seleção de microrgani...
Broiler farming is a significant source of gaseous emissions. The aim of this study was to assess the effects of different litter additives on the emission of NH3, N2O, CO2, and CH4 during broiler housing and subsequent manure storage. The gaseous emissions from the housing facilities were evaluated during one fattening cycle in environmentally controlled rooms with three different additives applied to the litt...
Broiler housing is a significant source of airborne pollutants from animal production, which lead to degradation of indoor air quality and outdoor emissions, particularly ammonia, nitrous oxide, carbon dioxide, methane, hydrogen sulphide, odours and particulate matter. In this chapter, we first analyse the current state of the art on the consequences of these pollutants on broiler farming, farm workers, and the...
Management with synthetic fungicides in the control of phytopathogens in viticulture can cause environmental pollution and contamination with residues in grape cluster. The objective of this study was to verify the effect of aqueous cinnamon extract on the in vitro and in vivo control of Plasmopara viticola on catalase activity on ‘Isabel Precoce’ vines. The treatments used were: aqueous cinnamon extract (ACE) ...
The preparation of the wines was obtained with a large amount of residues that can be composted with antimicrobial and inductive action. In this sense, the objective of this study was to verify the action of aqueous extract of grape residue (AEGR) on the control of downy mildew and the activation of defense enzymes in cv. Margot. The treatments used were: 12% AEGR, Saccharomyces cerevisae (Agro-Mos®), Bordeaux...
Made available in DSpace on 2020-12-12T02:39:57Z (GMT). No. of bitstreams: 0 Previous issue date: 2019-01-01. Added 1 bitstream(s) on 2021-07-15T15:26:12Z : No. of bitstreams: 1 S1981-67232019000100454.pdf: 1364792 bytes, checksum: 9f28c42d13de9452d2c338b6844a30de (MD5); Agrochemicals are used to control diseases in post-harvest grapes, but although efficient, they may cause human health problems. Thus, the obj...
Social demands have promoted an educational approach based on an “anywhere and anytime” premise. Remote laboratories have emerged as the answer to the demands of technical educational areas for adapting themselves to this scenario. The result has not only benefit distance learning students but has provided new learning scenarios both for teachers and students as well as allowing a flexible approach to experimen...
Resumen—Los laboratorios remotos son ya una herramienta de enseñanza/aprendizaje en diferentes campos de la ingeniería y de la ciencia. El laboratorio remoto VISIR es un ejemplo paradigmático de esta nueva metodología en el campo de la electrónica analógica ya que el alumno puede montar y medir circuitos reales de un modo satisfactorio. En la actualidad en Europa hay cinco instancias desplegadas y activas de VI...