Xylanase, protease and superdosing phytase interactions in broiler performance, carcass yield and digesta transit time

The interaction of xylanase, protease and superdosing (1,500 FTU/kg) phytase in a 2 × 2 × 2 factorial arrangement was studied in broilers fed sorghum-based diets. A total of 2,800 one-day-old unsexed Ross 308 chicks were housed in 56 pens with 50 birds per pen, with or without inclusion of xylanase,...

Full description

Saved in:
Bibliographic Details
Published in:Animal Nutrition 2017-06, Vol.3 (2), p.121-126
Main Authors: Dos Santos, Tiago T, Masey O'Neill, Helen V, González-Ortiz, Gemma, Camacho-Fernández, Daniel, López-Coello, Carlos
Format: Article
Language:English
Subjects:
Exogenous enzyme
Poultry Nutrition
Sorghum
Sub-additivity
Tibia ash
Citations: Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:The interaction of xylanase, protease and superdosing (1,500 FTU/kg) phytase in a 2 × 2 × 2 factorial arrangement was studied in broilers fed sorghum-based diets. A total of 2,800 one-day-old unsexed Ross 308 chicks were housed in 56 pens with 50 birds per pen, with or without inclusion of xylanase, protease and phytase, totaling 8 treatments and 7 replicates per treatment. Body weight (BW) and feed intake (FI) were measured at 21 and 42 days of age, and mortality corrected feed conversion ratio (FCR) was calculated for each period and cumulatively. Tibia ash and carcass yield were determined in 2 birds per replicate at 21 and 42 days of age, respectively. Digesta transit time was determined at 21, 28, 35 and 42 days of age using 5 birds per replicate. Results showed that superdosing phytase increased BW and FI at 42 days of age (  
ISSN:2405-6545
2405-6383
DOI:10.1016/j.aninu.2017.02.001