Poult. Sci.
HOME HELP FEEDBACK SUBSCRIPTIONS ARCHIVE SEARCH TABLE OF CONTENTS
QUICK SEARCH:   [advanced]


     

This Article
Right arrow Full Text (PDF)
Right arrow Alert me when this article is cited
Right arrow Alert me if a correction is posted
Services
Right arrow Similar articles in this journal
Right arrow Similar articles in PubMed
Right arrow Alert me to new issues of the journal
Right arrow Download to citation manager
Right arrow reprints & permissions
Citing Articles
Right arrow Citing Articles via HighWire
Right arrow Citing Articles via Google Scholar
Google Scholar
Right arrow Articles by Wu, G
Right arrow Articles by Roland, D.
Right arrow Search for Related Content
PubMed
Right arrow PubMed Citation
Right arrow Articles by Wu, G
Right arrow Articles by Roland, D., Sr
Poultry Science, Vol 85, Issue 1, 64-69
Copyright © 2006 by Poultry Science Association

Articles

Comparison of Natuphos and Phyzyme as phytase sources for commercial layers fed corn-soy diet

G Wu, Z Liu, MM Bryant, and DA Roland Sr

Department of Poultry Science, Auburn University, Alabama 36849, USA.

The objective of this experiment was to compare the effects of 2 sources of phytase on performance of commercial Leghorns fed corn-soy diets. Seven diets were fed to Hy-line W-36 hens (n = 840; 8 replicates of 15 hens per treatment) from 21 to 33 wk of age. The treatments consisted of a control diet containing 0.38% nonphytate P (NPP) and a 2 x 3 factorial arrangement of 2 dietary NPP concentrations (0.11 and 0.26%) with 2 phytase sources [Natuphos (BASF, Mt. Olive, NJ) and Phyzyme (Danisco Animal Nutrition, Carol Stream, IL)] and without phytase. Dietary NPP had significant effects on feed intake, NPP intake, total P intake, egg production, egg weight, egg mass, egg specific gravity, and excreta P. The addition of Phyzyme or Natuphos significantly increased egg production and egg mass of hens fed the P-deficient diet (0.11% NPP) to levels that were similar to hens fed the control diet containing 0.38% NPP. Feed intake of hens fed the diets supplemented with Phyzyme or Natuphos was significantly less than that of hens fed the control diet containing 0.38% NPP. Phyzyme or Natuphos supplementation in the diets containing 0.11% NPP had significantly reduced excreta P of the control diet (approximately 58 and 54%, respectively) with no adverse effect on egg production and egg mass. There were no significant differences in feed intake, NPP intake, total P intake, egg production, egg weight, egg mass, feed conversion, egg specific gravity, mortality, BW, and excreta P between the diets supplemented with Natuphos and the diets supplemented with Phyzyme. In conclusion, Phyzyme had the same positive effects on performance of commercial Leghorns fed corn-soy diets as Natuphos.


This article has been cited by other articles:


Home page
 Poult. Sci.Home page
A. L. Hughes, J. P. Dahiya, C. L. Wyatt, and H. L. Classen
The Efficacy of Quantum Phytase in a Forty-Week Production Trial Using White Leghorn Laying Hens Fed Corn-Soybean Meal-Based Diets
Poult. Sci., June 1, 2008; 87(6): 1156 - 1161.
[Abstract] [Full Text] [PDF]

Home page
 Poult. Sci.Home page
N. Liu, G. H. Liu, F. D. Li, J. S. Sands, S. Zhang, A. J. Zheng, and Y. J. Ru
Efficacy of Phytases on Egg Production and Nutrient Digestibility in Layers Fed Reduced Phosphorus Diets
Poult. Sci., November 1, 2007; 86(11): 2337 - 2342.
[Abstract] [Full Text] [PDF]

Home page
 J ANIM SCIHome page
N. R. Augspurger, D. M. Webel, and D. H. Baker
An Escherichia coli phytase expressed in yeast effectively replaces inorganic phosphorus for finishing pigs and laying hens
J Anim Sci, May 1, 2007; 85(5): 1192 - 1198.
[Abstract] [Full Text] [PDF]

Home page
 J. Appl. Poult. Res.Home page
J. Broz and N. E. Ward
The Role of Vitamins and Feed Enzymes in Combating Metabolic Challenges and Disorders
J. Appl. Poult. Res., January 1, 2007; 16(1): 150 - 159.
[Abstract] [Full Text] [PDF]


HOME HELP FEEDBACK SUBSCRIPTIONS ARCHIVE SEARCH TABLE OF CONTENTS
Copyright © 2006 by the Poultry Science Association.