1,720,963 research outputs found
Effect of number of animals per pen on growth performance and meat quality of veal calves
No full textAnalisi della componente fibrosa di diete unifeed per bovini da carne. Un indagine negli allevamenti del Veneto.
No full textEffect of plant maturity and germplasm on in situ rumen degradability and rate of passage of alfalfa hay
No full textEffects of alfalfa germplasm and stage of maturity on digestive process and productive response of dairy cows fed alfalfa hay-based diets
Full text linkThe effects on the digestive process and the productive performances of dairy cows fed diets containing alfalfa hay from different germplasms and maturity were assessed in the present study. Three different lots of first-cut alfalfa hay were used in the study: the improved variety "Boreal", harvested at two consecutive maturity stages (early flowering and full flowering) and the ecotype "Vogherese", at full flowering. Cutting the plant at an earlier stage of maturity improved hay quality in comparison with the more mature forages (crude protein: 21.4 vs 16.5% DM; P < 0.01; NDF: 42.2 vs 53.5% DM; P < 0.01). The comparison between improved variety and ecotype carried out at the same maturity showed a higher lignin content for the latter (8.6 vs 8.2% DM; P < 0.01). Three isocaloric, isonitrogenous and isofibrous diets for lactating cows were formulated using an equal amount of corn silage and the maximum inclusion of one of the tested hays as forage base. The better quality of the early cut hay made it possible to increase its inclusion in the diet up to 44% of total dietary DM, while the two more mature hays covered only 36% of total DM of the respective diets. According to a 3 x 3 Latin square design, the diets were fed to 3 Italian Brown cows (initial average days in milk 121 +/- 24 and milk yield 20 kg +/- 1.3) fitted with ruminal cannula in 3 consecutive periods of 28 d each. Alfalfa stage of maturity and germplasm did not affect dietary DM intake (average 16 kg/d). Degradability parameters of dietary DM, calculated by in situ nylon bags technique, showed similar kinetics of rumen disappearance for all diets. No differences were noticed in the ruminal rate of passage of the solid phase among diets, while the liquid phase showed a slower rate of passage for the early flowering hay diet. Consistent with the degradation process, the stage of maturity or the alfalfa germplasm did not affect the rumen fluid data or the in vivo digestibility coefficients of the diets. Milk yield did not show any change due to either alfalfa maturity or cultivar, while milk protein was lowered when cows received the early cut hay diet. This result was likely due to an excess of rumen degradable dietary protein which could have been limited by replacing part of the dietary protein sources (soybean meal) with others more resistant to the ruminal degradation
EFFETTO DELLA MATURITA' DELLA PIANTA E DEL GERMOPLASMA SULLA DEGRADABILITA' IN SITU E SUL TRANSITO RUMINALE DEL FIENO DI MEDICA
No full textGrowth performance, cleanliness and lameness on finishing Charolais bulls housed in littered pens of different design
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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
Effectiveness of different strategies to prevent from heat stress in a group of dairy farms located in the Province of Padova
Full text linkHeat stress during the summer season is an important factor which can impair dairy cows physiology and productivity. A survey was carried out on a sample of 30 dairy farms of the Province of Padova to assess the effectiveness of different strategies for heat stress control. All farms used a fan cooling system but in those were a sprinkler device was also operating an increased milk yield was observed (+5.0%). Cows receiving the diet in two daily distributions (morning and evening) increased DM intake (+9.0%) and milk yield (+15.0%) in comparison to animals fed once a day. No difference, instead, were observed in farms where cows were fed once a day in the morning or in the evening. A positive milk response (+8.1%) was recorded in farms equipped with wide waterers at the exit of the milking parlour
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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