Abstract
Monogastric animals like poultry, pigs, etc. lack the alloenzymes from rumen microflora and thus it becomenecessary to incorporate the enzymes in their diets in order to derive optimal nutrient utilization from complexfeed matric. Feed enzymes are added to animal feed to increase the availability of nutrient by digesting the feedcomponents during storage or after consumption within the gastrointestinal tract. Some of the enzymes thathave been used over the past several years and have potential for use in the feed industry include cellulase (?-glucanases), xylanases and associated enzymes, phytases, proteases, lipases, and galactosidases. Most of theenzymes used in the feed industry have been applied for poultry to neutralize the effects of the viscous, nonstarchpolysaccharides in cereals such as barley, wheat, rye, and triticale. Recently, considerable interest hasbeen shown in the use of phytase as a feed additive. The addition of phytase to feed improves phosphorusutilization in both ruminant and monogastric animals, reducing the need for supplemental inorganic phosphateand helps in reducing the environmental problems that arise from organic phosphate excretion. Thus, enzymesupplementation in the feed play an important role in increasing the availability of nutrients and retarding theadverse effect of anti-nutritional factors present in the feed components. This review aims to elucidate thedifferent enzymes being used in the poultry industry and their efficiency in increasing the poultry production.
Highlights
The application of feed enzymes to poultry including wheat and barley (Bedford and Schulze, diets for the enhancement of nutrient availability 1998), initiated this practice
The polysaccharides mostly present in raw materials research conducted on feed enzymes in poultry used for poultry diets are pectins, cellulose, mixednutrition focused on non-starch polysaccharide linked β-glucans and arabinoxylans (Parsippany, (NSP) degrading enzymes, especially xylanase and 2008)
This study shows that a combination of XAP and phytase improved performance, but the enhancement in performance appears to be due mainly to phytase
Summary
The application of feed enzymes to poultry including wheat and barley (Bedford and Schulze, diets for the enhancement of nutrient availability 1998), initiated this practice. Enzymes that appear to be beneficial for non-ruminant animals are the xylanases, or the endoxylanases for the feed which contain wheat, triticale and rye and the βglucanases or cellulases for those which contain barley and oats (Marquardt et al, 1996). In addition to the above mentioned enzymes, is an enzyme, which increases the availability of phosphorus from phytate, a bound form of phosphate found in cereals and other plant material (Marquardt et al, 1996) It has become available for use in the feed industry and may assist in reducing phosphorus requirements in non-ruminant animals and it can solve problems associated with environmental pollution. The addition of the enzyme cocktail in Pettersson and Aman’s (2007) trail resulted in a significant increase in body-weight and feed intake
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
