1,721,010 research outputs found
Confronto fra agnelloni 'Pinzirita' e derivati dall'incrocio Bergamasca x 'Pinzirita'. II. Caratteristiche mioreologiche
No full textLo studio è stato condotto su 37 agnelloni, di cui 19 (9 maschi e 10 femmine) appartenenti al tipo genetico ‘Pinzirita’ e 18 (10 maschi e 8 femmine) derivati dall'incrocio Bergamasca x ‘Pinzirita’. I soggetti, svezzati a 5 settimane, sono stati allevati in box sino alla mattazione, effettuata a 140 giorni di età. Le caratteristiche reologiche sono state rilevate su 3 muscoli: Gluteobiceps, Semimembranosus e Longissimus dorsi.
I risultati piú importanti possono essere così sintetizzati:
(a) il tipo genetico e il sesso non risultano importanti nel determinismo della maggior parte delle caratteristiche mioreologiche considerate;
(b) mediamente, il tipo genetico Bergamasca x ‘Pinzirita’ fornisce una carne con un piú elevato potere di ritenzione dell'acqua (minore acqua liberata durante la masticazione) e che tende ad avere una maggiore coesione;
(c) il maschio dà una carne con un piú elevato valore di coesione e che tende ad aderire maggiormente al palato;
(d) il muscolo influenza la quasi totalità delle proprietà studiate: fra i muscoli esaminati, il Semimembranosus, mediamente, risulta il piú duro e quello che richiede il maggior lavoro di masticazione, viceversa il Gluteobiceps;
(e) il tipo genetico interagisce con il sesso per l'acqua liberata totale: gli agnelloni ‘Pinzirita’ maschi, rispetto alle femmine, forniscono una carne con un piú basso potere di ritenzione dell'acqua (maggiore quantità di acqua liberata durante la compressione); il contrario si verifica per gli incroci
Whole genome semiconductor based sequencing of farmed European sea bass (Dicentrarchus labrax) Mediterranean genetic stocks using a DNA pooling approach
Full text linkEuropean sea bass (Dicentrarchus labrax) is an important marine species for commercial and sport fisheries and aquaculture production. Recently, the European sea bass genome has been sequenced and assembled. This resource can open new opportunities to evaluate and monitor variability and identify variants that could contribute to the adaptation to farming conditions. In this work, two DNA pools constructed from cultivated European sea bass were sequenced using a next generation semiconductor sequencing approach based on Ion Proton sequencer. Using the first draft version of the D. labrax genome as reference, sequenced reads obtained a total of about 1.6 million of single nucleotide polymorphisms (SNPs), spread all over the chromosomes. Transition/transversion (Ti/Tv) was equal to 1.28, comparable to what was already reported in Salmon species. A pilot homozygosity analysis across the D. labrax genome using DNA pool sequence datasets indicated that this approach can identify chromosome regions with putative signatures of selection, including genes involved in ion transport and chloride channel functions, amino acid metabolism and circadian clock and related neurological systems. This is the first study that reported genome wide polymorphisms in a fish species obtained with the Ion Proton sequencer. Moreover, this study provided a methodological approach for selective sweep analysis in this species
Going Beyond Counting First Authors in Author Co-citation Analysis
Full text linkThe present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
Caratteristiche reologiche di alcuni muscoli di agnelloni 'Pinzirita', 'Bergamasca x Pinzirita' e 'Suffolk x Pinzirita' a 200 giorni di età.
No full textVariations on the Author
Full text link“Variations on the Author” discusses two of Eduardo Coutinho’s recent films (Um Dia na Vida, from 2010, and Últimas Conversas, posthumously released in 2015) and their contribution to the general question of documentary authorship. The director’s filmography is characterized by a consistent yet self-effacing form of authorial self-inscription: Coutinho often features as an interviewer that rather than express opinions propels discourses; an interviewer that is good at listening. This mode of self-inscription characterizes him as an author who is not expressive but who is nonetheless markedly present on the screen. In Um Dia na Vida, however, Coutinho is completely absent form the image, while Últimas Conversas, on the contrary, includes a confessional prologue that moves the director from the margins to the center of his films. This article examines the ways in which these works stand out in the filmography of a director who offers new insights into the notion of cinematic authorship
Appropriate Similarity Measures for Author Cocitation Analysis
Full text linkWe provide a number of new insights into the methodological discussion about author cocitation analysis. We first argue that the use of the Pearson correlation for measuring the similarity between authors’ cocitation profiles is not very satisfactory. We then discuss what kind of similarity measures may be used as an alternative to the Pearson correlation. We consider three similarity measures in particular. One is the well-known cosine. The other two similarity measures have not been used before in the bibliometric literature. Finally, we show by means of an example that our findings have a high practical relevance.information science;Pearson correlation;cosine;similarity measure;author cocitation analysis
Analysis of the MC1R gene in the Nero Siciliano pig breed and usefulness of this locus for breed traceability
No full textEffect of propylene glycol on pre- and post-partum performance by dairy ewes
No full textThis study was carried out in order to determine the effects, after feeding propylene glycol to Valle del Belice ewes 30 days prepartum and 30 days postpartum, on metabolic profiles, body-condition score, milk yield, milk composition, milk clotting ability and the performance of suckling lambs. Ewes were blocked by parity, body-condition score and previous milk production, and assigned randomly to either a control diet or a diet containing propylene glycol fed at the rate of 80 g/ewe/day (low PG) or 160 g/ewe/day (high PG).
Feeding propylene glycol prepartum decreased the concentration of BHBA and NEFA and increased the concentration of glucose in the ewes’ plasma. Milk yield from ewes fed the diet containing the higher and lower levels of propylene glycol, was 25 and 16% greater respectively than milk yield from ewes fed the control diet (P < 0.01). Feeding propylene glycol increased
the milk fat and milk protein yield, and the milk cheese-making capacity compared with the control. Lambs of ewes fed the low and high propylene glycol diets, weighed 580 and 370 g more, respectively, at birth, than lambs of ewes fed the control diet (P < 0.01). Lambs of ewes fed the high propylene glycol diet gained 26 g/day more and weighed 1.15 kg more at 30 days compared to the lambs of ewes fed the control diet.
In conclusion, feeding propylene glycol to ewes from 30 days prepartum up to 30 days postpartum decreased BHBA and NEFA concentrations in plasma, increased glucose concentration in plasma and milk yield, and improved the growth of nursing lambs
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