caa a22 4500 397569300 CHVBK 20180308164836.0 cr unu---uuuuu 161202e199604 xx s 000 0 eng 10.3382/ps.0750551 doi (NATIONALLICENCE)oxford-10.3382/ps.0750551 Influence of Trichoderma viride Enzyme Complex on Nutrient Utilization and Performance of Laying Hens in Diets With and Without Antibiotic Supplementation [Elektronische Daten] [M. VUKIC VRANJES, C. WENK] The experiment was designed to test possible interactions of an enzyme complex (product from Trichoderma viride) and a feed antibiotic (flavophospholipol) in a barley diet on metabolism variables and egg production performance of Warren Brown laying hens. The basal diet contained 40% winter barley (French cultivar "Express”, six-row). The four treatments were as follows: O, control (without supplement); E, enzyme complex, 600 ppm; A, flavophospholipol, 10 ppm; EA, enzyme complex, 600 ppm and flavophospholipol, 10 ppm. The enzyme complex contained the following main activities: cellulase (10,500 U/g), endo-β-(l:3)(l:4)-glucanase (24,000 U/g), and xylanase (32,000 U/g). The enzyme positively influenced AME content of the feed, organic matter (OM) utilization, and neutral detergent fiber (NDF) degradability (P ≤ 0.01). When supplemented alone, the antibiotic had no influence on energy and nutrient utilization. No significant differences in egg production due to dietary treatments were observed. A significant enzyme by antibiotic interaction for AME (P ≤ 0.01) and OM utilization (P ≤ 0.001) as well as NDF degradability (P ≤ 0.01) indicated a reduced enzyme effect in the diet containing antibiotic. Negative enzyme by antibiotic interaction for energy utilization in laying hens suggested that the positive response to dietary enzyme supplementation in the mature laying hen (Treatment O vs E) was to great extent mediated by the activity of intestinal microbes. © 1996 Poultry Science Association, Inc. Metabolism and Nutrition nationallicence laying hen nationallicence barley diet nationallicence enzyme by antibiotic interaction nationallicence nutrient utilization nationallicence egg production nationallicence VRANJES M. VUKIC aut WENK C. aut Poultry Science Oxford University Press 75/4(1996-04), 551-555 0032-5791 75:4<551 1996 75 ps https://doi.org/10.3382/ps.0750551 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.3382/ps.0750551 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- VRANJES M. VUKIC aut NATIONALLICENCE 700 1- WENK C. aut NATIONALLICENCE 773 0- Poultry Science Oxford University Press 75/4(1996-04), 551-555 0032-5791 75:4<551 1996 75 ps Metadata rights reserved CC BY-NC-4.0 http://creativecommons.org/licenses/by-nc/4.0 nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-oxford