5 documents found, page 1 of 1
Addition of a blend of exogenous enzymes to broiler chickens diets: impacts on ...
Marchiori,Maiara Sulzbach; Strapazzon,João Vitor; Giacomelli,Charles Marcon; Galli,Gabriela Miotto; Petrolli,Tiago Goulart; Boiago,Marcel ManenteABSTRACT Broiler diets are based on corn, soybean and wheat production; however, some protein ingredients have many antinutritional factors and low digestibility. The objective of this study was to add a blend of exogenous enzymes to the feed with low nutritional value for broilers to reduce production costs and improve digestibility while maintaining good zootechnical performance. The experimental design was c...
The effect of dietary phytase and various available phosphorus levels on perfor...
Rossetto,Rafaella; Barreta,Maurício; Migliorini,Marcos José; Pecher,Fabíula; Roza,Lenílson Fonseca; Boiago,Marcel Manente; Petrolli,Tiago GoulartSUMMARY Birds show poor utilization of phytic phosphorus in their diets because of the lack of endogenous enzymes to digest phosphorus and make it bioavailable. Therefore, the objective of this study was to evaluate phytase supplementation in the diets of laying quails. Eighty quails were used in a completely randomized experimental design with five treatments and four replicates of four birds each. The treatme...
Eucalyptus oil to mitigate heat stress in broilers
Petrolli,Tiago Goulart; Sutille,Maria Aparecida; Petrolli,Osmar José; Stefani,Lenita Moura; Simionatto,Anderson Tiecher; Tavernari,Fernando de CastroABSTRACT The objective of this study was to evaluate performance, hematological parameters, leukocyte counts, and respiratory microbiota of broilers under heat stress receiving eucalyptus oil supplementation. Cobb broilers (n = 1200) were randomly distributed on the first day of life in a factorial arrangement with additional treatment (2 × 2 + 1) with two periods of oil administration via drinking water (daily...
Glycosaminoglycans and vitamin C in ovo feeding affects bone characteristics of...
Santos,Elaine Talita; Sgavioli,Sarah; Castiblanco,Diana Maryuri Correa; Domingues,Carla Heloísa de Faria; Quadros,Thays Cristina Oliveira deABSTRACT Different levels of glycosaminoglycans (chondroitin sulfate and glucosamine sulfate) and vitamin C were injected in ovo to determine whether additive use influences the incubation parameters and bone characteristics of posthatch chicks. Hatchability was not affected by addition of glycosaminoglycans and vitamin C in ovo. However, chicks that received 4 μg additive showed 2.86% reduction in total mortal...
Herbal extracts in diets for broilers
Petrolli,Tiago Goulart; Albino,Luiz Fernando Teixeira; Rostagno,Horacio Santiago; Gomes,Paulo Cezar; Tavernari,Fernando de Castro; Balbino,Eric MárcioThe objective of this study was to evaluate the effect of feeding herbal extracts for broilers on performance and histology of the intestinal mucosa and its effects on the profiting from the metabolizable energy of experimental diets. For so, two experiments were conducted. In experiment I, the inclusion of different herbal extracts in diets on performance and intestinal histology of broilers was evaluated, and...