10.6084/m9.figshare.7773764.v1
Jaqueline de Cássia Ramos da Silva
Jaqueline de Cássia Ramos da
Silva
Carlos Bôa-Viagem Rabello
Carlos Bôa-Viagem
Rabello
Maria do Carmo Mohaupt Marques Ludke
Maria do Carmo Mohaupt Marques
Ludke
Cláudia da Costa Lopes
Cláudia da Costa
Lopes
Emmanuele Maria Florêncio de Arruda
Emmanuele Maria Florêncio de
Arruda
Elainy Cristina Lopes
Elainy Cristina
Lopes
Camilla Roana Costa de Oliveira
Camilla Roana Costa de
Oliveira
Cláudio José Parro de Oliveira
Cláudio José Parro de
Oliveira
Enzyme complex at different levels in diets with enriched ingredients for commercial laying hens
SciELO journals
2019
digestibility
enzymes
hens
nutrients
2019-02-27 02:48:31
Dataset
https://scielo.figshare.com/articles/dataset/Enzyme_complex_at_different_levels_in_diets_with_enriched_ingredients_for_commercial_laying_hens/7773764
<div><p>ABSTRACT 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 (DMAM), crude protein (CPAM), gross energy (GEAM), and phosphorus (PAM); digestible crude protein (CPD); and intake, retention, and excretion of phosphorus. No effects of EC levels were detected on the metabolizable energy values or digestibility coefficients, except for CPAM, which showed a quadratic response (maximum coefficient at 89.0 mg.kg‒1EC). A quadratic effect was also observed for CPD (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.</p></div>