Semester
Summer
Date of Graduation
2004
Document Type
Thesis
Degree Type
MS
College
Davis College of Agriculture, Natural Resources and Design
Department
Animal and Nutritional Sciences
Committee Chair
Joseph S. Moritz.
Abstract
Research indicates a reduction of phosphorus content in fecal excreta with the supplementation of phytase to corn-soybean meal based diets or with the use of low phytate corn (LPC) in broilers. This study examined how 0--3 wk broiler chicks are impacted by concomitant phytase supplementation with LPC (0.136% phytate phosphorus (PP) by analysis) in the diet. Various levels of phytase from either 2500 or 5000 FYT/g of Peniophora lycii phytase product were used as experimental treatments. Efficacy of treatments was determined using a response curve created with increasing levels of monocalcium phosphate. Following a 6-day pretest, 576 broiler chicks were randomly assigned to one of the 12 dietary treatments, with 8 replicates and 6 birds per cage. Measurements of live performance, tibia ash, mineral digestibility and apparent metabolizable energy were obtained. Results showed phytase supplementation in diets containing LPC had a positive impact on broiler chick growth.
Recommended Citation
Baker, Nicole J., "Effects of various phytase concentrations in diets with low-phytate corn on broiler chick performance and metabolism" (2004). Graduate Theses, Dissertations, and Problem Reports. 2004.
https://researchrepository.wvu.edu/etd/2004