Browsing by Author "Ferreira, Pedro"
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- Ammonia and greenhouse gas emissions from a breeding hen building in PortugalPublication . Pereira, José Luís; Ferreira, Sílvia; Conde, André; Ferreira, Pedro; Pinheiro, Victor; Trindade, Henrique
- Assessment of ammonia and carbon dioxide concentrations in a breeding hen building under Portuguese winterPublication . Pereira, José; Garcia, Carla; Ferreira, Sílvia; Pinheiro, Victor; Trindade, Henrique; Conde, André; Ferreira, Pedro
- Assessment of ammonia and carbon dioxide concentrations in a breeding hen building under Portuguese winterPublication . Pereira, José Luís; Ferreira, Sílvia; Garcia, Carla; Conde, André; Ferreira, Pedro; Pinheiro, Victor; Trindade, HenriqueExcessive ammonia (NH3) and carbon dioxide (CO2) in the housing of breeding hens can cause various negative effects on the health of hens and the welfare of the workers who care for them. The aim of this study was to evaluate the NH3 and CO2 concentrations in the first month of housing the breeding hens during Portuguese winter. The study was conducted on a commercial hen breeding farm located in central Portugal. One modern building equipped with climate control system, automatic feeding and drinking systems and minimum transitional tunnel ridge system was selected. New litter material made with rice hulls was used in the building, and the breeding sample comprised five months old 6864 female and 720 male birds housed in the building on 7 November 2016. The outdoor and indoor environmental conditions and indoor gas concentrations were measured continuously from 10 November to 30 November 2016. (NH3)and CO2 concentrations were measured with a photoacoustic field gas monitor and air samples collected through 4 sampling points located indoor, by a multipoint sampler. Results showed that the CO2 concentrations did not exceed 3000 ppm during the first month of housing the breeding hens and under winter environment. However, the NH3 concentrations exceed 20 ppm on most measurement days. For a good indoor air quality, the study suggests the use of mitigating measures for maintaining NH3 concentration below 10 ppm.
- Characterisation of gaseous emissions from tunnel ventilated broiler buildings during winter season in PortugalPublication . Pereira, José Luís; Alves, Susana; Trindade, Henrique; Borges, João; Ferreira, Pedro
- Slow Cities Movement: an opportunity for the city of ViseuPublication . Ferreira, Pedro; Barroco, Cristina; Seabra, CláudiaContemporary society is experiencing a critical phase, being constantly exposed to pressure, to a general massification and to an increasing tendency for products’ and services’ standardization. The way we live in community is more and more individualized and therefore individuals are losing their social and cultural identity. Tourism industry reflects the developed Western societies’ lifestyle. Consumed as a mass product, there is an over-exploitation of the natural, social and cultural resources, directly affecting the local populations and creating a clear imbalance in the destination. In 1986 the Slow movement emerges and tries to counter this prevailing phenomenon, promoting socio-economic, cultural and environmental sustainability in small towns. With this, new Slow movements emerged, such as Slow Tourism and Slow Cities, being increasingly valued, not only by the cities that promote them, but also by the tourists that choose to practice a more sustainable and ecological type of tourism. The Slow concept is important, seen as a contribution to the residents’ life quality increase and also the cities and tourist valorization. The Slow Cities movement couples the ideals of the Slow movement to the urban context, promoting in the cities a sustainable development. In Portugal, this movement is recent, existing only six Portuguese cities in the Slow Cities network. This study main aim is to analyze the potential and specificities that the city of Viseu offers in order to formalize a future application to the Cittaslow International Network.
- Slow Tourism: sustainability for products and destinationsPublication . Ferreira, Pedro; Seabra, Cláudia; Barroco, CristinaThe post-World War II boom was a turning point for the contemporary tourism era, making it an accessible product to the majority of the population, not only for the higher social classes. However, in the late 20th century, the global tourism was dominated by a massive tourism type. Tourism reflected the development of western society’s lifestyle, where quantity was valued over quality (Timms & Conway, 2012). The slow movement strongly grown in the 90’s as an opposition to the massive and uncontrolled consumption. Based on this new assumption some cities are offering visitors’ new tourism products and destinations more sustainable and green, trying to conquer new markets, breaking barriers and growing as ecological tourist destinations. The slow tourism movement is an emerging market segment and in clear expansion (Lumdson & Macgrath, 2011; Mintel, 2009), being this type of tourism a credible alternative to current sun and beach tourism products and cultural tourism (Lumsdon & Mcgrath, 2011). In 2007, the World Travel Market in London, predicted that the slow tourism would grow at an average rate of 10% a year in Western Europe. The main goal of this study is to analyze slow movement in tourism, all the guidelines and variables that reflect it ideology. The methodology used in this work is based on literature review and consequently discussion of slow movement applied to tourism as a way to create more sustainable destinations and tourism products.