1,721,026 research outputs found
Messa a punto di un protocollo per la valutazione del benessere della vacca da latte nelle stalle di montagna
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Estimation of fescue hay intake in horses using the n-alkanes method
No full textThe aim of the work was to evaluate the n-alkane method for measuring forage intake in horses. Four Quarter horses were housed in individual loose boxes and fed with fescue hay and concentrate in three equal feeds at 08.30, 13.00 and 17.00 hrs. After a preliminary period of 12 days, each horse received, for 8 days, 3 g/d of shredded paper impregnated with n-dotriacontane (C32, 209 mg/g), and 3 g/d of shredded paper impregnated with n-hexatriacontane (C36, 164 mg/g), mixed with the concentrate, as external markers. The most present n-alkanes in the forage, n-hentriacontane (C31) and n-tritriacontane (C33), were used as natural markers. Individual faecal samples were collected three times a day. The n-alkane concentrations in the faeces varied widely between days (P<0.001 for C31, C33 and C36; P<0.05 for C32); moreover, dosed n-alkanes did not show the expected enrichment phase during the initial days following marker administration. The variability was reduced when the ratio between natural and dosed n-alkanes was considered, although statistical analysis revealed that only the C31 to C32 ratio did not vary between days. The reduced between-days fluctuation was more evident starting from the 4th day from marker administration; the forage intake was calculated from this day onwards, using individual marker concentration of a single day (day 4), or of pooled days, i.e. the mean value of two (days 4 and 5), three (days 4 to 6), four (days 4 to 7) and five (days 4 to 8) days. The estimated intake was generally lower than the actual amount of forage ingested. The best estimate was obtained with C31/C32 pairs. Increasing the days of sampling from 1 to 4 caused a marked reduction of the standard deviation for all the estimates; only a modest reduction of variability was observed for the further increase of the period to 5 days
The effects of supplementary feeding on carcass and meat quality in fallow deer (Dama dama)
No full textThe effects of supplementary feeding on carcass and meat quality were studied on thirty-two male fallow deer, half 18- and half 30-month-old, slaughtered after a 4-month feeding trial on pasture alone or with daily supplement of 500 g DM of concentrate/head (eight each 18- and 30-month-old). Supplemented deer were heavier (49.9 vs 45.0 kg) and their carcasses produced higher dressing proportion (60.5 vs 56.2%) and bigger amount of first quality cuts. Supplementary feeding improved muscle development and fat deposition: the latter was higher both in carcasses and in meat. Thirty-month-olds were heavier (53.3 vs 41.6 kg) and their carcasses produced higher dressing proportion (59.9 vs 56.8%) and bigger amount of first quality cuts; their carcasses showed better conformation and higher fat deposition
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
Variations 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
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