Ефект на Acorus calamus L. екстракт върху растежа и кръвните параметри на обикновен шаран (Cyprinus carpio L.), отглеждан в рециркулационна система

The aim of this study was to determine the effect of the sweet flag (A. calamus L.) extract addition of growth performance, haematological (white blood cells, red blood cells, hemoglobin, hematocrit) and biochemical (glucose, urea, creatinine, total protein, albumin, ASAT, ALAT, Ca, P, Mg, triglycerides, cholesterol) blood parameters of common carp (Cyprinus carpio L.) cultivated in recirculation system. Carps were randomly selected and distributed into four concrete tanks for the growth trial (8 fish/tank). Fish were divided into experimental (E) and control groups (C), each of them with two replicates and mean initial weight 908.5±171.2 g and 913.8±147.4 g, respectively. They were fed with pelleted carp feed with 25% crude protein, produced by the "Top mix" company, having a granule size of 6 mm. To the fish feed on the experimental group (E) was added 1% aqueous extract of A. calamus root, as well as oiling the pellets with 5 mL of sunflower oil for every 100 g of feed. Carps from control group (C) were fed with feed only greased with the same amount of sunflower oil. The daily ration that the studied fish received was 1.8% of their live weight. The duration of the trial period was 45 days. At the end of the experiment with 5.2% was measured a higher average live weight in the fish receiving the sweet flag supplement compare to the value of this parameter of carps from control group, and the differences were statistically significant (P0.05).Better blood biochemical and haematological parameters were measured in carp fed with sweet flag supplement.Целта на това проучване е да се определи ефектът от добавянето на екстракт от блатен аир (A. calamus L) върху растежа, хематологични (бели кръвни клетки, червени кръвни клетки, хемоглобин, хематокрит) и биохимични (глюкоза, урея, креатинин, общ протеин, албумин, ASAT, ALAT, Ca, P, Mg, триглицериди, холестерол) кръвни параметри на обикновен шаран (Cyprinus carpio L.), отглеждан в рециркулационна система. Рибите се разделят на експериментални (Е) и контролни групи (С), всяка от тях с две повторения и средно тегло 908.5 ± 171.2 g и 913.8 ± 147.4 g, съответно. Те са хранени с гранулиран фураж за шарани с 25% суров протеин, произведен от фирма "Top mix", с размер на гранулите 6 mm. Към храната за рибите от експерименталната група (Е) се прибавя 1% воден екстракт от корен на A. calamus, както и омасляване на пелетите с 5 мл слънчогледово масло на всеки 100 г фураж. Шараните от контролната група (С) са хранени с фураж, само омаслен със същото количество слънчогледово масло. Дневната дажба на изследваната риба е 1.8% от тяхното живо тегло. Продължителността на експерименталния период е 45 дни. В края на експеримента с 5.2% се измерва по-високо средно живо тегло на рибата, получаваща добавката с блатен аир, в сравнение със стойността на този параметър за шараните от контролната група, като разликите са статистически значими (Р0,05). По-високи биохимични и хематологични параметри на кръвта са измерени при шараните, хранени с добавка на блатен аир

Mining conflicts around the world: Common grounds from an Environmental Justice perspective

Abstract. This report aims at exploring contemporary mining conflicts in the context of the sustainable development and environmental justice movement. This is done based on 24 real case studies from 18 different countries which are described by local activists and scholars. While 17 of the reported cases focus on conflicts related to metal mining (e.g. gold, silver, copper, zinc, and lead), four address uranium mining and one refers to coal mining. As an example of a new frontier in the industry, a sand mining conflict from India is also reported. All of these cases are directly chosen and reported, either in factsheet or in-depth study format, by EJOs, as part of a knowledge sharing activity well-established in EJOLT between EJOs and the academic community. Although the cases covered here are all quite unique and diverse in terms of type of conflict and geographical setting, they all share a common frame of analysis. First, the project and type of conflict are characterized in a nutshell, with some basic factual background that describe the companies involved, and the communities and locations affected. The roots of the conflicts are explored next, as well as relevant socioeconomic, cultural, health, and ecological impacts and related community claims. Where relevant, means of resistance are also specified with their influence on the project and/or the outcome of the conflict. The report then offers a synthesis of the described mining cases, review their commonalities, link gained insights with research needs and discuss some policy recommendations that might follow from this analysis. Despite its limitations, compiling such a diverse set of mining conflicts that builds on EJO knowledge promotes mutual learning and collaboration among stakeholders, EJOs and academia, which is one of the key objectives of EJOLT

Genomic Epidemiology and Lineage Dynamics of SARS-CoV-2 in Bulgaria: Insights from a Three-Year Pandemic Analysis

The COVID-19 pandemic caused by severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) has brought about significant challenges worldwide. In this study, we present a comprehensive analysis of the genomic epidemiology and lineage dynamics of SARS-CoV-2 in Bulgaria over a three-year period. Through extensive genomic sequencing and data analysis, we investigated the evolution of the virus, the emergence of variants of concern (VOCs), and their impact on the country’s pandemic trajectory. We also assessed the relationship between viral diversity and COVID-19 morbidity and mortality in Bulgaria. Our findings shed light on the temporal and spatial distribution of SARS-CoV-2 lineages and provide crucial insights into the dynamics of the pandemic in the country. The interplay between international travel and viral transmission plays a significant role in the emergence and dissemination of different SARS-CoV-2 variants. The observed proportions of exportation to various continents provide insights into the potential pathways through which these lineages spread globally. Understanding the genomic epidemiology of SARS-CoV-2 in Bulgaria is essential for formulating targeted public health strategies, enhancing vaccination efforts, and effectively managing future outbreaks