41 research outputs found

    Genetics THE INFLUENCE OF WEANING WEIGHT ON GROWTH OF THE HYPLUS BROILER RABBIT

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    ABSTRACT The final crossbreds of the broiler rabbit HYPLUS (product of the company Grimaud Frères) were fattened from 42 to 84 days of age. The following traits were weekly recorded: body weight, average daily weight gain, average daily consumption of feed and feed conversion ratio with regard to the effect of the genotype (♂PS59 × ♀PS19; ♂PS119 × ♀PS19), replication, interaction genotype x replication and weight at 42 days of age (group 1: weight lower then 1300 g and group 2: weight greater then 1300 g). The highest difference in body weight between both genotypes was found at the age of 70 days, when the difference was 5.6%. During the whole fattening period the genotype (59 x 19) showed lower feed conversion ratio (P<0.001) and higher average daily gain (P<0.05). The effect of replication was not-significant in most of the traits. The first replication showed a significantly higher value in the average daily gains than the second replication (P<0.05). The interaction genotype x replication was significant in the body weight at 42, 56, 63 and 70 days of age and in the feed consumption from 49 to 56 days. Rabbits of group 1 weighed 2655 g at the end of fattening period and rabbits of group 2 weighed 2892 g respectively. No growth compensation during the fattening period was observed in group 1. The body weight at 42 days of age had a significant influence on body weight at the end of fattening

    PDBe-KB: collaboratively defining the biological context of structural data

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    The Protein Data Bank in Europe - Knowledge Base (PDBe-KB, https://pdbe-kb.org) is an open collaboration between world-leading specialist data resources contributing functional and biophysical annotations derived from or relevant to the Protein Data Bank (PDB). The goal of PDBe-KB is to place macromolecular structure data in their biological context by developing standardised data exchange formats and integrating functional annotations from the contributing partner resources into a knowledge graph that can provide valuable biological insights. Since we described PDBe-KB in 2019, there have been significant improvements in the variety of available annotation data sets and user functionality. Here, we provide an overview of the consortium, highlighting the addition of annotations such as predicted covalent binders, phosphorylation sites, effects of mutations on the protein structure and energetic local frustration. In addition, we describe a library of reusable web-based visualisation components and introduce new features such as a bulk download data service and a novel superposition service that generates clusters of superposed protein chains weekly for the whole PDB archive

    The relationship between greenspace and the mental wellbeing of adults: A systematic review

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    INTRODUCTION: The view that interacting with nature enhances mental wellbeing is commonplace, despite a dearth of evidence or even agreed definitions of 'nature'. The aim of this review was to systematically appraise the evidence for associations between greenspace and mental wellbeing, stratified by the different ways in which greenspace has been conceptualised in quantitative research. METHODS: We undertook a comprehensive database search and thorough screening of articles which included a measure of greenspace and validated mental wellbeing tool, to capture aspects of hedonic and/or eudaimonic wellbeing. Quality and risk of bias in research were assessed to create grades of evidence. We undertook detailed narrative synthesis of the 50 studies which met the review inclusion criteria, as methodological heterogeneity precluded meta-analysis. RESULTS: Results of a quality assessment and narrative synthesis suggest associations between different greenspace characteristics and mental wellbeing. We identified six ways in which greenspace was conceptualised and measured: (i) amount of local-area greenspace; (ii) greenspace type; (iii) visits to greenspace; (iv) views of greenspace; (v) greenspace accessibility; and (vi) self-reported connection to nature. There was adequate evidence for associations between the amount of local-area greenspace and life satisfaction (hedonic wellbeing), but not personal flourishing (eudaimonic wellbeing). Evidence for associations between mental wellbeing and visits to greenspace, accessibility, and types of greenspace was limited. There was inadequate evidence for associations with views of greenspace and connectedness to nature. Several studies reported variation in associations between greenspace and wellbeing by life course stage, gender, levels of physically activity or attitudes to nature. CONCLUSIONS: Greenspace has positive associations with mental wellbeing (particularly hedonic wellbeing), but the evidence is not currently sufficient or specific enough to guide planning decisions. Further studies are needed, based on dynamic measures of greenspace, reflecting access and uses of greenspace, and measures of both eudaimonic and hedonic mental wellbeing

    Possibility of using nonmetallic check samples to assess the sensitivity of penetrant testing

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    Versions of check sample manufacturing for penetrant inspection are considered. A statistical analysis of crack width measuring for nonmetallic samples is performed to determine the possibility of their application to assess the penetrant testing sensitivity

    Possibility of using nonmetallic check samples to assess the sensitivity of penetrant testing

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    Versions of check sample manufacturing for penetrant inspection are considered. A statistical analysis of crack width measuring for nonmetallic samples is performed to determine the possibility of their application to assess the penetrant testing sensitivity

    Gamma-radiolytic preparation of multi-component oxides

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    The preparation of solid precursors to Zn1-XCdXO and (Lu,Y)(3)Al5O12:Ce induced by Co-60 gamma-ray irradiation of aqueous solutions containing soluble metal salts and ammonium formate is presented: Due to the irradiation, crystalline zinc carbonate hydroxide Zn-4(CO3)(OH)(6). H2O or amorphous carbonates of Lu, Y and Al were formed in the solutions. After calcination at 500 degrees C, the agglomerated phase-pure Zn1-XCdXO with crystallite size about 50 nm was obtained if the Cd concentration in solutions remained below 16 M% (with respect to Zn) with x being up to 0.035. The solid precursors to garnets contained the intended concentration of all elements, according to X-ray fluorescence analysis. After calcination at 1200 degrees C in mild vacuum, the respective phase-pure garnets with crystallite size 100 nm or their solid solution were produced when the Ce dopation was kept below 2 M% (with respect to rare-earth metals). The Ce solubility in the garnet lattice was estimated as 1-2 M% at the calcination conditions used
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