Effects of garlic-supplemented diet on growth performance and intestinal microbiota of rainbow trout (Oncorhynchus mykiss)

In the present study, we investigated the effect of different garlic concentrations on growth performance and intestinal microbiota of rainbow trout (Oncorhynchus mykiss). A total of 240 healthy rainbow trout were fed diets containing 0% (control), 1% (G1), 1.5% (G2) and 2% (G3) garlic extract for 120 days. At the end of the study, weight gain and specific growth rate of fish were significantly higher among garlic-supplemented groups compared to the control group. Moreover, genomic DNA was isolated from the intestinal mucus and the V4 region of the 16S rRNA gene was amplified and sequenced on the Illumina MiSeq platform. The results demonstrated that the most abundant operational taxonomic units (OTUs) were affiliated to the genera Deefgea (15.1%) and Aeromonas (17.4%) in the control group, whereas members belonging to the genera Deefgea (20.5–20.9%) and Mycoplasma (36.3–24.3%) were dominant in the G1 and G2 groups, respectively. Members belonging to the genus Aeromonas (44.6%), and to a lesser extent, the genera Deefgea (13.9%) and Exiguobacterium (14.8%) were dominant in the G3 group, which received the highest level of garlic in the diet. In conclusion, dietary garlic supplementation may promote growth performance and induce changes in the intestinal microbiota, conferring beneficial effects to the host. © 2017 Elsevier B.V.FBA-2016-6006Financial support for this research project was provided by the Scientific Research Project Fund of Cukurova University (Project No: FBA-2016-6006 )

Effect of the Icing with Rosemary Extract on the Oxidative Stability and Biogenic Amine Formation in Sardine (Sardinella aurita) During Chilled Storage

The effect of icing with the rosemary extract on the quality and safety of sardines (Sardinella aurita) was assessed through the chemical, sensory and microbiological methods. The sensory acceptability limit was 12 days for sardine stored in traditional ice and 15 days for sardine stored in ice prepared from rosemary extract solution. There were no significant differences between sardine stored in ice with both 0.05% and 0.1% rosemary extract in terms of sensory acceptability. Storage of sardine in ice containing rosemary extract improved the sensory and some of the chemical quality parameters as compared with the traditional icing, which resulted in a significant extension in the shelf life of sardine. Eleven biogenic amines were determined for food quality and safety. Icing containing rosemary extract had a positive effect, causing low biogenic amine content, especially histamine and putrescine. Histamine content of sardine also increased rapidly with time when the number of bacteria reached above 10 6 cell/g, which is a good correlation between histamine content and number of bacteria. Consequently, the application of ice containing rosemary extract improved the quality and safety of sardine, which can be explored by the food industry. © 2011 Springer Science + Business Media, LLC

HIT-COVID, a global database tracking public health interventions to COVID-19

The COVID-19 pandemic has sparked unprecedented public health and social measures (PHSM) by national and local governments, including border restrictions, school closures, mandatory facemask use and stay at home orders. Quantifying the effectiveness of these interventions in reducing disease transmission is key to rational policy making in response to the current and future pandemics. In order to estimate the effectiveness of these interventions, detailed descriptions of their timelines, scale and scope are needed. The Health Intervention Tracking for COVID-19 (HIT-COVID) is a curated and standardized global database that catalogues the implementation and relaxation of COVID-19 related PHSM. With a team of over 200 volunteer contributors, we assembled policy timelines for a range of key PHSM aimed at reducing COVID-19 risk for the national and first administrative levels (e.g. provinces and states) globally, including details such as the degree of implementation and targeted populations. We continue to maintain and adapt this database to the changing COVID-19 landscape so it can serve as a resource for researchers and policymakers alike

Metadata record for: HIT-COVID, a global database tracking public health interventions to COVID-19

This dataset contains key characteristics about the data described in the Data Descriptor HIT-COVID, a global database tracking public health interventions to COVID-19. Contents: 1. human readable metadata summary table in CSV format 2. machine readable metadata file in JSON forma