RESUMEN
Many livestock and aquaculture feeds compete for resources with food production. Increasing the use of food system by-products and residues as feed could reduce this competition. We gathered data on global food system material flows for crop, livestock and aquaculture production, focusing on feed use and the availability of by-products and residues. We then analysed the potential of replacing food-competing feedstuff-here cereals, whole fish, vegetable oils and pulses that account for 15% of total feed use-with food system by-products and residues. Considering the nutritional requirements of food-producing animals, including farmed aquatic species, this replacement could increase the current global food supply by up to 13% (10-16%) in terms of kcal and 15% (12-19%) in terms of protein content. Increasing the use of food system by-products as feed has considerable potential, particularly when combined with other measures, in the much-needed transition towards circular food systems.
RESUMEN
We tested the feeding behaviour of small European perch (Perca fluviatilis) in a laboratory study during the first 24 h after handling and 23 mm passive integrated transponder (PIT) tag implantation. Feeding commenced almost immediately following tagging and overall feeding patterns were unaffected by tagging. However, untagged perch had more feeding events than PIT-tagged individuals. This discrepancy could be attributed to post-tagging effects or/and reduced room for food due to the presence of the tag in the body cavity.
Asunto(s)
Percas , Animales , Conducta AlimentariaRESUMEN
The COVID-19 disease is presently a matter of global public health concern as it could be potentially fatal. Health workers have at the moment, inadequate knowledge of prevention measures, and their erroneous practices may directly increase the risk of spread. As a result, matters are complicated further as far as the chain of infection is concerned. The present cross-sectional study was conducted with 494 Health Worker participants in Cyprus between the 1st and 20th of May and the data were collected via an online questionnaire. The survey was created using information from a previous study as well as current directives published on the WHO website. The statistical software SPSS 22.0 was used for data analysis. The ANOVA test was used for the comparison of quantitative variables, while the Kruskal-Wallis test was used in cases of non-parametric distribution. The Pearson or Spearman coefficients were used to test correlation and the levels of materiality were set to 0,05. Women constituted 66,7% of the participants and 44,8% of all participants were between the age of 30-39 years old. The majority (75,4%) of the participants were Nursing Officers and 44,5% held postgraduate qualifications. HWs appeared to have a positive perception (xÌ = 3.58, SD = 0.53, MR = 1-5) regarding the course of the pandemic and their knowledge of the virus was found to be generally satisfactory. The findings of the current study indicate that in case of a similar global public health crisis, certain educational interventions should be implemented. This could be achieved with the use of an appropriate strategy. As a result, all demographic-working strata of health professionals would be well-educated and informed.
