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Articles by V. Tufarelli
Total Records ( 3 ) for V. Tufarelli
  V. Laudadio , V. Lorusso , N.M.B. Lastella , K. Dhama , K. Karthik , R. Tiwari , Gazi Mahabubul Alam and V. Tufarelli
  A significant focus in the nutrition era has been oriented to nutraceutical and functional foods. The health promoting potential of such provisions is ascribed to nutrition and these constituents have useful properties playing important role for egg producers. The biological and nutraceutical importance of egg is often due to the active compounds. It holds various bioactive compounds having significant nutraceutical properties like antioxidant, antiallergenic, antiartherogenic, antimicrobial and cardioprotective. Antioxidants are important against many disorders like hypercholesterolemia and cardiovascular diseases. The growing attention on natural antioxidants has promoted researches in investigating new antioxidant sources having profitable prospective. Confirmation for the effectiveness of the enrichment of eggs with bioactive compounds by inclusion of plant-derived materials in the diet of egg-producing poultry has been reviewed. This review study aims to discuss the antioxidant potential of natural substances used to enrich the eggs and highlight the importance of eggs as potential nutraceutical food. The evidence for health-promoting effects of enriched eggs has also been included.
  V. Tufarelli , M. Dario and V. Laudadio
  The effect of xylanase enzyme supplementation and particle-size in wheat (Triticum durum)-based diets was studied in guinea broilers from 29 to 91 days of age. Weekly body weight, gain, feed consumption and Feed Conversion Ratio (FCR) were determined. Was formed 4 groups, each fed: diet A (ground wheat with enzyme); diet B (ground wheat without enzyme); diet C (ground wheat passed through 3 mm sieve, pelleted and after crumbled with enzyme): diet D (crumbled wheat without enzyme). The highest body weights values were recorded by guinea fowls fed diet C. Birds fed diet B have shown low mean values of body weight. Subjects fed diet C were obtained values of mean body weight different (p<0.05) respect to subjects fed both unsupplemented diets. Between two diets containing xylanase, even if prepared with different method, weren`t recorded differences (p<0.05), even if subjects fed crumbled diets show an increase of body weight in comparison to subjects that received ground diets. Body weight gain of guinea broilers fed diet A and diet B were recorded high values, with differences (p<0.05) in birds fed supplemented diets. These differences weren`t observed between birds fed diets B and D. Feed consumption showed that birds fed diets A and B consume an higher amount of feed (p>0.05) compared to the diets C and D, regardless the supplementation of xylanase. Within every typology of diet (ground versus crumbled) aren`t recorded differences (p<0.05) for the presence or not of enzyme, even if between crumbled diets, supplementation however has reduced feed consumptions. FCR of every diets shown`t differences (p<0.05) among them, with values in guinea broilers fed supplemented diets similar to data recorded in birds fed unsupplemented diets. The supplementation of xylanase in a crumbled wheat-based diet improved the growth performance of guinea fowl broilers.
  V. Tufarelli , R.U. Khan and V. Laudadio
  This study investigated the effect of pelleted diets prepared differing by levels of grinding preparation (2 or 4 mm) to evaluate pellet quality and diet preferences in adult breeders poultry species: guinea fowl (Numida meleagris), layer hen (Gallus domesticus) and pheasant (Phasianus colchicus) to improve our understanding of the diet physical structure influencing feed intake. All diets were of identical composition as well as same environment and management were provided for all treatments. The parameters evaluated in this 4 weeks feeding trial included: live body weight, feed intake, feed efficiency and pellet durability index. Body weight gain, feed intake and feed efficiency were influenced (p<0.05) by the dietary treatments in each poultry species. The present data suggest that pellet particle size is advantageous in terms of feed intake and efficiency in poultry.
 
 
 
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