Altos níveis de fitase em rações para frangos de corte

Meneghetti, Camila; Bertechini, A. G.; Rodrigues, Paulo Borges; Fassani, Édison José; Brito, Jerônimo Ávito Gonçalves de; Reis, Matheus de Paula; García, Adriana

doi:10.1590/s0102-09352011000300014

Cited by 5 publications

(5 citation statements)

References 17 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Those authors found improved nutrient digestibility with an enzymatic combination of phytase and a complex containing amylase, xylanase, and protease, in broiler diets. Meneghetti et al (2011) worked with phytase supplementation at levels starting at 450 mg.kg -1 diet with a nutritional reduction in the dietary energy and concluded that it can be used in broilers from 1 to 35 days of age without any harm to their nutrient digestibility and energy utilization. Liebert et al (2005) experimented phytase supplementation (300 mg.kg -1 ) in corn-and soybean mealor wheat bran-and soybean meal-based diets for commercial layers and found no effect on their intake, retention, and excretion of phosphorus.…”

Section: Discussionmentioning

confidence: 99%

Enzyme complex at different levels in diets with enriched ingredients for commercial laying hens

et al. 2019

View full text Add to dashboard Cite

The objective of this study was to evaluate levels of inclusion of an enzyme complex (EC) in corn-and soybean meal-based diets for laying hens on the digestibility of nutrients and energy. A metabolism trial was conducted using 75 Dekalb Brown laying hens at 26 weeks of age, which were distributed into five treatments with five replicates in a completely randomized design. The ingredients used in the diets received an additional (enriched) 3% methionine, lysine, cysteine, threonine, tryptophan, and metabolizable energy and 33.3% phosphorus. Treatments consisted of diets including 0, 150, 200, 250, or 300 mg.kg-1 EC. We determined apparent metabolizable energy (AME); nitrogen-corrected AME (AMEn); apparent metabolizability coefficients of dry matter (DM AM), crude protein (CP AM), gross energy (GE AM), and phosphorus (P AM); digestible crude protein (CP D); and intake, retention, and excretion of phosphorus. No effects of EC levels were detected on the metabolizable energy values or digestibility coefficients, except for CP AM , which showed a quadratic response (maximum coefficient at 89.0 mg.kg-1 EC). A quadratic effect was also observed for CP D (minimum at 115 mg.kg-1 EC), P excretion (maximum at 173.2 mg.kg-1 EC), and P retention (maximum at 122.4 mg.kg-1 EC) when EC was used. The use of the EC in corn-and soybean meal-based diets for laying hens improves their ileal digestibility of protein and apparent digestibility of phosphorus. However, EC addition to the diets does not affect AME, AMEn, or their metabolizability coefficients.

show abstract

Section: Discussionmentioning

confidence: 99%

Enzyme complex at different levels in diets with enriched ingredients for commercial laying hens

et al. 2019

View full text Add to dashboard Cite

show abstract

“…The recommended phytase dosage for broiler diets is 500 FTU/kg (Phytase Unit), while the Superdosing concept of phytase is the addition of higher levels of this enzyme in the diets, being double or triple the usual value (Meneghetti et al, 2011;Dersjant-Li et al, 2015;). Research has reported that phytase superdosing has beneficial effects on animal performance (Cowieson et al, 2011;Pirgozliev et al, 2011).…”

Section: Introductionmentioning

confidence: 99%

Phytase Superdosing in the Diet of Lightweight Replacement Pullets: Performance, Organ Biometry and Bone Characteristics

Sena

Leite

Farias

et al. 2020

Braz. J. Poult. Sci.

View full text Add to dashboard Cite

The aim of this study was to evaluate the effect of two types of phytases (the 1 st produced from Escherichia coli and the 2 nd from Aspergillus oryzae) with different dosages (300 and 900 Unit Phytase or FTU) on performance, organ biometry and bone quality of replacement pullets in the period of 8 to 17 weeks of age. A total of 288 Hy-Line White laying hens were used at 8 weeks of age. A completely randomized design was adopted in a 2 x 2 factorial scheme, totaling 4 treatments with 8 replicates of 9 birds each. Performance, biometric variables and bone characteristics were evaluated. There was no significant interaction between the factors for any of the evaluated variables. The conversion and the accumulated consumption were influenced (p<0.05) by the phytase dosages, with the highest results being observed for the consumption obtained with 300 FTU, and the best results for the feed conversion obtained with the dosage of 900 FTU. The relative weight of the liver was influenced by the treatments (p<0.05), presenting higher values with bacterial phytase and a dosage of 900 FTU. The sternum length and tibial deformity were influenced by fungal phytase (p<0.05). It is concluded that the use of 900 FTU superdosing and fungal phytase improves the performance and bone characteristics of light replacement pullets.

show abstract

“…The NAPs are not digested and also impair the digestion and absorption of other nutrients because they hydrate and increase the viscosity of the digesta, impairing thus the activity of endogenous enzymes and the absorption of simple molecules, such as glucose and free amino acids (4) . The supplementation of exogenous enzymes to the diet improves the production efficiency of birds as it increases the digestion of low-quality products and reduces the loss of nutrients in the feces (5)(6)(7) .…”

Section: Introductionmentioning

confidence: 99%

Complexo Enzimático E Farelo De Arroz Integral Sobre O Desempenho Produtivo E Qualidade Dos Ovos De Poedeiras Em Segundo Ciclo De Produção

et al. 2017

View full text Add to dashboard Cite

Abstract:The objective of this study was to evaluate the performance as well as the quality of eggs from birds fed diets containing whole rice bran (RB), with or without the addition of an enzyme complex (EC) with different levels of metabolizable energy value. A total of 480 Hisex brown layers were used. The treatments consisted of diets based on corn (C), soybean meal (SBM), rice bran (RB), with or without the inclusion of the enzyme complex (EC) to the diets. Treatments 1, 2, 3, and 4 consisted of the presence of corn (C), soybean meal (SBM) and treatments 5, 6, 7, and 8 consisted of C, SBM, and 20% RB, with or without the inclusion the EC. Treatments 1, 3, 5, and 7 did not receive CE; however, in treatments 3 and 7 there was energy recovery of 100 kcal / kg (negative controls). The EC was added without energy recovery (on top) to treatments 2 and 6, and valued at 100 kcal / kg in treatments 4 and 8. Birds fed RB produced heavier eggs and yolk. Birds fed RB and that received the EC on top had higher feed intake. The highest Haugh unit and best feed conversion per dozen were observed in birds that received only the control treatment or the control diet supplemented with EC in a diet reformulated to 100 kcal ME/kg. Keywords

show abstract

Altos níveis de fitase em rações para frangos de corte

Cited by 5 publications

References 17 publications

Enzyme complex at different levels in diets with enriched ingredients for commercial laying hens

Enzyme complex at different levels in diets with enriched ingredients for commercial laying hens

Phytase Superdosing in the Diet of Lightweight Replacement Pullets: Performance, Organ Biometry and Bone Characteristics

Complexo Enzimático E Farelo De Arroz Integral Sobre O Desempenho Produtivo E Qualidade Dos Ovos De Poedeiras Em Segundo Ciclo De Produção

Contact Info

Product

Resources

About