Abstract
Inconsistencies in expected performance have been noted from feeding exogenous enzymes. Several explanations may exist but it is possible that when feeding diets with exogenous enzymes a metabolic feedback system limits or regulates endogenous digestive enzyme expression, synthesis, and secretion. Labeled amino acids may be an advantage over other methods for measuring endogenous losses because the isotope technique may be used with practical diets. Endogenous amino acid secretions have been shown to be affected by dietary protein, types of fats, and fiber (Siriwan et al., 1989; Danicke et al., 2000) and digestible amino acid requirements should be corrected for the endogenous amino acid losses. The objectives of the present study were to determine endogenous amino acid losses from broilers fed various levels of protein, fat, and fiber with and without added Rovabio MaxTM.
Access this chapter
Tax calculation will be finalised at checkout
Purchases are for personal use only
References
Corring, T., and J. Jung, 1972. The amino acid composition of pig pancreatic juice. Nutrition Reproduction International 6, 187–190.
Danicke, S., W. Bottcher, H. Jeroch, J. Thielebein, and O. Simon, 2000. Replacement of soybean oil with tallow in rye-based diets without xylanase increases protein synthesis in small intestine of broilers. J. Nutr. 130, 827–834.
Siriwan, P., W. L. Bryden, and E. F. Annison, 1989. Effects of dietary fibre and protein levels on endogenous protein secretions in chickens. Proc. Nutr. Soc. Aust. 14, 143.
Author information
Authors and Affiliations
Corresponding author
Editor information
Rights and permissions
Copyright information
© 2013 Wageningen Academic Publishers The Netherlands
About this chapter
Cite this chapter
Cerrate, S., Vignale, K., Ekmay, R., England, J., Coon, C. (2013). Effect of an enzyme complex and dietary nutrients on endogenous losses of amino acids in chicks. In: Oltjen, J.W., Kebreab, E., Lapierre, H. (eds) Energy and protein metabolism and nutrition in sustainable animal production. Energy and protein metabolism and nutrition in sustainable animal production, vol 134. Wageningen Academic Publishers, Wageningen. https://doi.org/10.3920/978-90-8686-781-3_77
Download citation
DOI: https://doi.org/10.3920/978-90-8686-781-3_77
Publisher Name: Wageningen Academic Publishers, Wageningen
Online ISBN: 978-90-8686-781-3
eBook Packages: Biomedical and Life SciencesBiomedical and Life Sciences (R0)