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Browsing by Issue Date, starting with "2022-09-07"

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  • Applied microbiology on poultry industry: from nutrition to the gut microbiota
    Publication . Carvalho, Nelson Mota de; Oliveira, Diana Luazi; Costa, Célia Maria; Pintado, Manuela Estevez; Madureira, Raquel
    Poultry products (i.e., meat and eggs) are one of the major protein sources for the human diet. The animal’s diet is one of the key elements that the poultry industry has been focused on, to improve the animal’s performance, maintaining their healthy growth and, ultimately, high quality end products. The incorporation of functional ingredients in feed formulations, aiming to provide extra benefits and/or prevent diseases, has been considered efficient in maintaining the animal’s productivity and simultaneously ensure its well-being. Nutrient’s bioavailability varies throughout digestion and absorption within the poultry’s gastrointestinal tract (GIT). A reliable in vitro model, as the one developed and used in this study, capable of mimicking all digestion, absorptive and cecal fermentation processes, is a useful tool to study the potential benefits of feed supplemented with functional and/or bioactive ingredients. The developed in vitro gastrointestinal model simulates the chemical, enzymatic, and mechanical conditions prevailing in the chicken´s GIT, from beak to cecum. Fresh broiler’s cecal samples were used as inoculum for batch cecal fermentation and the impact of different feed formulations, on bacteria modulation, organic acids, and total ammonia nitrogen production, were assessed. Overall, this approach enables to evaluate, as close to reality as possible, the potential of target additives, providing a trustworthy tool for the development of functional feeds.
    2022-09-07Conference object Open access Show more
  • Michel Henry's notion of bodily-ownness in the context of the ecological crisis
    Publication . Lind, Andreas Gonçalves
    Despite the suspicions of Gnosticism that have been cast against Michel Henry’s phenomenology, the truth is that his approach in no way belittles the earth, the nature we inhabit. The purpose of this article is to sketch an eco-phenomenology from Henry’s notion of bodily-ownness. In this sense, I show how Henry defends an intimate and intrinsic connection between the human and nature that risks being severed by the imposition of scientistic ideology. In doing so, an integral ecology emerges from Henry’s radical phenomenology. On the one hand, human beings shall abandon their selfish way of life, in the sense of ceasing to want to dominate, control and transform the world at will. On the other hand, they do so in order to regain their original connection with nature, where they exist in a radical passivity in which life is given to them and is realized more fully as a person in harmony with the earth. In this sense, contrary to some current ecological movements, the ecology that arises from Henry’s approach does not set human beings against nature. In fact, in order for nature to be respected, human beings do not have to disappear, withdraw or stop progressing in the life proper to them.
    2022-09-07Journal article Open access Show more