117,401 research outputs found
Partial and total fish meal substitution in sea bass diets using soybean and wheat protein concentrates
No full textUsing Digital Storytelling to communicate chemical risks in food to high school students.
No full textThe research project, “ Chemical risk in food: comparing web- and paper-based communication tools ” , funded by the Italian Ministry of Health, intended to make a comparative assessment of the most effective tools to use in communication campaigns on chemical risks associated with food. The aim of the project was to raise awareness among adolescents about the problem of food safety and, as a result, to reduce the risk of exposure to chemical contaminants contained in food
The objective of the project was to build a message and to disseminate it to a sample of young people aged between 16 and 18 in North East Italy, by means of two tools: one web- and the other paper-based. The choice of storytelling, as a method to develop the message on both the web- and the paper- based tools, is one of the more innovative aspects of the project pilot. Storytelling was identified as a technique able to facilitate understanding of scientific notions and to foster learning by emotionally involving the target. The use of this technique can be considered absolutely original in the communication of risk for consumer safety.
Evaluation showed that the use of the storytelling technique had a positive impact on the target involved. From the data collected through the evaluation questionnaires, it was found that most of the young people (83%) considered the technique to be an effective means of communication able to attract the curiosity of their peers. Besides being an important innovation in the field of food risk communications, the direct involvement of the students in designing the communication tools in the early stages of the project and their participation in building the Digital Storytelling product proved to be a means of arousing the curiosity not only of the spectators but also of the students involved in the participatory process. Implementation of the storytelling technique actually required the young people to reflect on their own experience and daily life and to build a narrative related to the subject in question. In particular, the results of the analyses showed that, of the various elements used to build the tool, the students who saw the Digital Storytelling product reported appreciating that the actors were people of their own age, indicating this as an effective way of conveying the communication message to the identified targe
Sostituzione parziale della farina di estrazione di soia con fonti proteiche di origine animale. Effetto sulla concentrazione di azoto ammoniacale nel fluido ruminale e sui livelli di urea ematica
No full textAssessing perceived food chemical risk by means of an educationaleì project analysed with permutation tests
No full textNon Parametric combinatio
Effect of type of floor and space at the manger on growth performance and feeding behaviour of beef cattle
No full textThere is no regulation in force concerning the welfare of beef cattle in Europe likely because of the large differences existing among the fattening systems adopted by different countries. The fattening system mainly adopted in Italy must be consider intensive due to the high cattle stocking rate and the indoor housing with lack of pasture. In these rearing conditions the main factors affecting beef cattle welfare are the space allowance, the number of animals/pen, the type of floor, and the space at the manger (EU-SCAHAW, 2001)..
Growth parameters and plasma metabolites of European Sea Bass, Dicentrarchus labrax, L. in relation to the DP/DE ratio of the diet
No full textThe role of formal and informal paths of learning in risk prevention education
No full textThis paper explores the relations among formal, non-formal and informal modes of learning, and the potential for web communication to play a role in risk prevention education. The learning theme addressed is that of risk (Lupton, 2013), a concept that generally concerns a negative event or danger, characterized by the threat of loss (or damage) and an associated feeling of insecurity (Ewald, 1993); potentially a topic of great interest, given that knowledge of risk prevention strategies can enhance quality of life.
Existing studies have shown that young people are sensitive to the need to prevent risks. For example, Whitaker, Miller, May and Levin (1999) demonstrated the key role of informal learning in relation to sexual risk and the use of condoms, while Santi, Borselli, Bertoletti, Giaccherini, Mingione and Schifano (1997) reported similar findings concerning the perceived risks of ecstasy. However, the knowledge acquired is not always sufficiently in-depth; for example, the participants in the second study cited perceived ecstasy as a dangerous substance, but were unable to state its composition.
In order to investigate the value attributed by young people to formal, non-formal and informal learning paths, respectively, we conducted a study with a particular focus on chemical risk in food. Chemical food risk is linked to the presence in food products of toxins, allergens and natural contaminants. It is vital to monitor chemical changes in food because they can lead to major health problems and in extreme cases even to death.
To investigate the potential for web communication to spread awareness of salient aspects of chemical food risk among young people, an ad hoc website was developed by a group of experts. Seven classes of secondary school students (science and technology curriculum) in the Veneto region were introduced to the site during a presentation in class, with the aim of promoting individual use of the resource. To assess participants' usage of the site and the extent to which they perceived it to be salient, we conducted focus group discussions and administered a questionnaire to the adolescents in our sample.
The results suggested that participants recognized the authority of an official site informing about a risk, but tended to visit it mainly when prompted to do so via their social network feeds. They also reported a preference for being able to access the site interchangeably from their desktop, tablet or smartphone.
Young people appeared to view television (63.4%) as more authoritative than the formal website (36.6%) or social networks (25%). This finding confirms the fact that students expect formal education agencies to disseminate knowledge about risks. In other words, adolescents see schools and reputable television programs as the main resources for learning to recognize and prevent risks.
Social networks and informal websites, therefore, do not seem to be the channel of preference for constructing learning processes for risk prevention. However, these more informal media play a crucial role at a later stage, when they aid in disseminating and providing up-to-date information about formal initiatives.
In sum, formal educational agencies remain the most trusted and credible source of risk prevention messages. On the other hand, informal channels are decisive in promoting formal initiatives that might otherwise fail to reach or engage target audiences
The welfare evaluation of laying hens reared with alternative housing systems
No full textHens housed in battery cages are more concentrated per surface unit (450 cm2/bird). Associated to this breeding system are economic, hygienic and healthy advantages. However, the battery cage housing of laying hens is strongly criticised for the poor bird’s “quality of life”. For this reason EU regulations will exclude the use of battery cages in the near future. Several papers have emphasised that in any particular system there are certain specific aspects, which are critical to the welfare of birds housed in it (Appleby and Hughes, 1991)...
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