1,720,978 research outputs found
Comparison between the efficacy of dimeric and monomeric non-ionic contrast media (iodixanol vs iopromide) in urography in patients with macroscopic haematuria.
No full textEffect of enrichment with live insect larvae (Hermetia illucens) on egg quality in laying hens
No full textInsects can promote sustainable livestock farming being an environmentally friendly feed with a rich nutritional profile which may enhance livestock health and welfare to varying degrees, depending on the type of product used (e.g., protein meal, fat, live or dried larvae). In this context, the present study evaluated the effects of the supplementation (as an enrichment) over the diet with live larvae of Hermetia illucens (HI) on egg chemical composition, fatty acid profile, and sensory characteristics. To this purpose, laying hens from two genotypes (Novogen Brown and Novogen White) were randomly allocated to 8 pens of a multi-tier system and fed a corn-soybean meal-based diet. From 36 to 40 weeks of age, half of the pens received live HI larvae (supplementing 10% of the daily feed intake) offered in two circular feeders per pen, once daily. After 35 days of enrichment, a total of 400 eggs (50 per pen; 4 pens with and 4 without enrichment) were collected. Data were submitted to ANOVA with HI enrichment and genotype with interaction as fixed effects and the pen as a random effect, using the PROC GLIMMIX of SAS. The HI enrichment did not affect most of egg rheological and physical traits (p>0.05), whereas it decreased shell percentage (9.75% vs. 9.93%; p=0.017) and albumen pH (8.90 vs. 8.97; p=0.065) in comparison with the control group. Albumen protein content was lower in the eggs from the enriched hens compared to those of the control group (10.5% vs 10.9; p=0.019). In the yolk, the rates of C14:0 (+159%; p<0.001), minor SFAs and MUFAs, and conjugated linoleic acid (C18:2 trans 9-11) (+12%; p<0.001) were higher in eggs from enriched hens compared to eggs of the control group. As for the sensorial evaluation, a triangular test revealed no significant differences between the eggs of the two feeding treatments. In conclusion, the enrichment with live HI larvae at 10% of feed intake did not impair egg nutritional or sensory quality and may promote animal welfare by favouring natural foraging behaviours
Effect of enrichment with hemp seeds on the behaviour of laying hens in a cage-free system
No full textThe present study evaluated the effect of hempseed supplementation over the diet as an envi-ronmental enrichment on behaviour of laying hens. A 4-weeks trial run with 1800 Hy-line Brown laying hens, from 37 to 40 weeks of age, randomly allocated in 8 pens of an experimental aviary. Whole hempseeds were distributed (10% of the daily feed intake) in additional manual feeders in two pens or directly on the litter in other two pens, once a day at the same hour (10:00 a.m.), whereas no enrichment was provided in the other 4 pens. Hen behaviour was assessed through the analysis of 4 days of video recordings (one day per week) by scanning 10 sec every 30 min for every hour to score the number of hens on the floor, pecking the feeder, pecking the litter, moving, preening, dust-bathing, aggression, piling, inactive. Data were submitted to ANOVA with hemp seeds enrichment and hour of observation as main effects and the pen as a random effect, using the PROC GLIMMIX of SAS. The enrichment with hemp seeds in the feeder was obviously associated to a rate of animals pecking the feeder (7.37% of observed hens), which corresponded to a decreased preening in the same pens compared to those that received hemp seeds on the litter or did not receive any enrichment (11.5% vs. 15.3% and 19.7% of observed hens, respectively; P<0.001). In the same pens receiving hemp seed in the feeders, a higher rate of piling hens was observed compared to the group with hemp seed distributed on the litter and that without enrichment) (5.58% vs. 4.37% and 2.42% observed hens; P=0.01). Other behaviours were not modified by the environmental enrichment. As for changes according to the hour of observation, the highest number of hens on the ground was observed around 9:00 a.m. (43.8% of observed hens), when people entered the farm for daily recordings, ranging from 24.3% to 41.7% at the other observation hours. The rate of hens pecking the ground increased after switching on the lights and remained high until 8:00 a.m. when it started to decrease; then, it increased again from 11:00 a.m. until the end of daylight, which was negatively associated to the rate of inactive animals. Dust bathing showed a peak between 11 a.m. and 12:00 a.m., whereas preening was especially observed at the same hours besides 2 hours after switching on the light. In conclusion, the enrichment with hemp seeds did not substantially change the behaviours of animal, except for the opportunities of feeding alternative to the commercial diets. It should be further proved that the higher rate of piling hens in pens receiving hemp seeds, especially at the time of the entrance of people in the farm, could be considered an anticipatory behaviour eventually associated to a positive effect of the enrichment on hen affective status
Valore diagnostico dell’enhancement a livello delle strie periviscerali nel constesto del tessuto adiposo mesorettale in pazienti affetti da carcinoma del retto dopo radio chemioterapia neoadiuvante
No full text44° Congresso Nazionale della SIRM - Verona 11-15 giugno 201
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
Valore diagnostico dell’enhancement a livello delle strie periviscerali nel constesto del tessuto adiposo mesorettale in pazienti affetti da carcinoma del retto dopo radio chemioterapia neoadiuvante
No full text44° Congresso Nazionale della SIRM - Verona 11-15 giugno 201
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