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


     

J APPL POULT RES 2003. 12:275-283
© 2003 Poultry Science Association
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 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 Kocher, A.
Right arrow Articles by Chung, T. K.
Right arrow Search for Related Content
PubMed
Right arrow Articles by Kocher, A.
Right arrow Articles by Chung, T. K.

Research Reports

Effects of Enzyme Combinations on Apparent Metabolizable Energy of Corn-Soybean Meal-Based Diets in Broilers

A. Kocher*, M. Choct*, G. Ross{dagger}, J. Broz{ddagger} and T. K. Chung{dagger}

* School of Rural Science and Agriculture, University of New England, Armidale, NSW 2351, Australia
{dagger} Roche Vitamins Asia Pacific Pte. Ltd. , Singapore 079120
{ddagger} Roche Vitamins Ltd. , Animal Nutrition and Health R&D, Basel 4070, Switzerland

Correspondence: A. Kocher, E-mail: akocher2{at}une.edu.au

Corn and soybean meal (SBM) are high-quality feed ingredients for broiler diets. Antinutritive factors in SBM, such as protease inhibitors and lectins, are successfully inactivated by heat treatment. However, the nutritive value of these ingredients also depends on the amount of indigestible carbohydrates, in particular the amount of oligosaccharides and nonstarch polysaccharides (NSP). Despite the fact that such diets are low in indigestible carbohydrates, it has been suggested that the inclusion of exogenous feed enzymes to such diets could improve nutrient availability and, subsequently, improve energy digestibility.

Four consecutive AME bioassays were conducted to investigate the effects of three singleactivity enzyme products, two multi-activity enzyme preparations, and a commercially available enzyme product added to a corn-SBM-based broiler diet.

None of the evaluated enzyme combinations successfully improved the performance of 3- to 4- wk-old broiler chickens. However, in experiments 1 and 2, when enzymes were included in a lowerenergy corn-SBM basal diet, the combination of pectinase, protease, and amylase significantly improved AMEn in comparison to the unsupplemented basal diet. Subsequent experiments with a higher energy and protein basal diet failed to show the same improvement when enzymes were added. Results of this study indicated that although enzyme addition to corn-SBM-based basal diets can significantly improve AMEn, the success of such improvement depended greatly on the raw ingredients available at the time.

Key Words: apparent metabolizable energy • broiler • corn • enzyme • soybean meal




This article has been cited by other articles:


Home page
 Poult. Sci.Home page
O. A. Olukosi, A. J. Cowieson, and O. Adeola
Age-Related Influence of a Cocktail of Xylanase, Amylase, and Protease or Phytase Individually or in Combination in Broilers
Poult. Sci., January 1, 2007; 86(1): 77 - 86.
[Abstract] [Full Text] [PDF]


HOME HELP FEEDBACK SUBSCRIPTIONS ARCHIVE SEARCH TABLE OF CONTENTS
Copyright © 2003 by the Poultry Science Association.