Bio-efficacy of feed proteases in poultry and their interaction with other feed enzymes

The most accepted value of the inclusion of exogenous proteases in poultry diets is the improvement of protein digestibility from dietary ingredients. However, effects of exogenous proteases on animal performance do not necessarily reflect the increment in protein digestibility from proteases in vitro and a variety of factors determine the bio-efficacy of the application of proteases in chickens. An accurate prediction of amino acid digestibility improvements in response to dietary enzymes is important to maximise the animal performance response and ensure that the cost of including the enzyme is justified. Overestimation of the digestibility effect of protease on individual essential amino acids relative to other amino acids may limit the benefits of increments on the absorption of dietary protein for animal growth.

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Product / service:	Carbohydrases and Proteases, Enzyme combinations, Enzyme and probiotic combinations, Enzymes
Publication date:	01/03/2013
Species:	Poultry
Authors:	Romero LF, Plumstead PW
Doctype:	Articles
Publication / conference:	Feedinfo.com
Regions and countries:	Global
Keywords:	proteases, poultry, protein, digestibility, amino-acid, enzyme, fat, fiber, fibre
Production challenge(s):	Gut health, Performance growth
Diets:	All diets
Brands:	Axtra® XAP, Axtra® XB, Axtra® PHY, Optimize Feed, FASTKit assay, Syncra® AVI
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