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Enzymes in poultry nutrition
Enzymes are proteins involved in all anabolic and catabolic pathways of digestion and metabolism. Digestive enzymes are categorised as endogenous or exogenous. Endogenous enzymes are produced by the animal and exogenous enzymes are administered from outside. Enzyme supplementation decreases nutrient loss through excreta, reduces diets nutritional levels, improves nutrient availability; thus, enhances production efficiency and profitability. In addition, exogenous enzymes hydrolyse non-starch polysaccharides, increase the usage of feed energy, reduce negative impacts of non-digestive residues on digesta viscosity, and improve gut microbial ecosystem. Cellulase, glucanase, pectinase, xylanase, galactisidases, phytase, non-starch polysaccharides degrading enzymes, amylase, lipase, cellulase, and protease are the most common enzymes used in poultry feed.
I. INTRODUCTION Exogenous feed enzymes were first introduced as commercially-relevant feed additives in the 1980s with an initial focus on reduction of the antinutritional effects of high molecular weight soluble pentosans in wheat- and barley-based diets for young broiler chickens (Bedford & Partridge, 2010). Exogenous phytase was launched in the early 1990s to increase the digestibility of organic phosphorus and to reduce the antinutritional effects of phytic acid (Selle &...
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Meat and bone meal (MBM) is a valuable source of protein, calcium and available phosphorus for broiler diets (Anwar et al., 2016). The use of MBM in broiler diets at levels above 50 g/kg minimizes the need for inclusion of inorganic P, thus reducing feed cost. Potential indigestibility of protein in MBM (Kim et al., 2012) may act as a predisposing factor for necrotic enteritis (NE). Increased production of nitrogenous bacterial metabolites including amines and ammonia in the hindgut may...
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AMINODat® 6.0 The most extensive web-based database for animal nutritionists
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I. INTRODUCTION Bacillus-based probiotics have gained increased attention as alternatives to antibiotic growth promoters (AGP) to support broiler performance in systems aiming to reduce the use of antibiotics and maintain gut health and function. Combatting poor gut health and disease susceptibility in an era without antibiotics has been made increasingly difficult due to the increasing cost of commercial feed ingredients. This has forced some producers to use cheaper dietary...
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I. INTRODUCTION Xylans and cellulose are the predominant fibre-polysaccharides in animal feeds, and xylanases, together with phytases, are the most widely used supplemental microbial enzymes in feeds. Proteinaceous xylanase inhibitors (XI), primarily attributed to three types, Triticum aestivum xylanase inhibitor (TAXI), xylanase inhibiting protein (XIP) and thaumatin-like xylanase inhibitors (TLXI), are found in a wide range of plant feedstuffs, particularly cereals grains such as...
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Will New Version of GMP Boost the Veterinary Drugs Industry?
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Challenges in poultry nutrition Today, commercial poultry nutrition no longer encompasses just the ‘pure’ delivery of the nutrients needed by the animals for their preservation, growth and health. It must also be flexible in adapting to changing statutory regulations and keeping up with increasing consumer demands – beginning with eliminating feed of animal origin by using carefully selected raw materials, reducing the use of drugs such as antibiotics, ensuring...
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Mycotoxins are toxic compounds produced by certain fungi that contaminate crops and animal feed under specific conditions. These toxins, such as aflatoxins, deoxynivalenol (DON), and ochratoxin A, pose serious health risks to animals and humans. Among their many effects, some mycotoxins directly impair the immune system, causing...
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Author details: 1 Department of Animal Science and Biotechnology, Chungnam National University, Daejeon 34134, South Korea; 2 Kemin Animal Nutrition and Health, Asia Pacific, Seongnam-si, Gyeonggi-do, South Korea. Introduction Nutrient supply to meet requirements accounts for the largest share of poultry production costs, within which protein (i.e., AA) supply makes up the second largest portion. The feeding of reduced protein diets is targeted to...
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Doug Korver (University of Alberta) spoke on the design of diets with essential oils, prebiotics, probiotics and enzymes, as well as the evaluation of the performance under commercial conditions, during IPPE 2019 in Atlanta, USA....
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Please inform me: if I use 5000 IU/Kg feedT, how should I calculate its energy and protein in the matrix value? ...
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Kurt Van de Mierop (Nutrex) talks about an advanced enzyme solution that improves feed efficiency, reduces production costs, and optimizes nutrient absorption in monogastric animals.
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Effects of <i>Ganoderma lucidum</i> fermentative products supplementation on growth performances, carcass characteristics and immune response in Native Chickens
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Dr. Piotr Stanislawski shares his experience with Engormix members regarding the use of enzymes in poultry diets and gives his advice on how to do it properly....
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Dr. Peter Selle
By Prof. Eugeni Roura
President, WPSA Australian Branch
Dr. Peter Selle has been a dedicated and passionate figure in the Australian poultry industry for over...
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Mike Persia (Virginia Tech) discusses direct-fed microbials, their modes of action, and their positive impact on energy and eggshell quality in this Engormix interview during IPPE 2025 in Atlanta, USA....
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In this Engormix interview during IPPE 2025 in Atlanta, USA, Chongxiao (Sean) Chen (University of Georgia) offers information on resources provided by his UGA Poultry Science group: a Poultry Nutrition 101 Course and a newsletter....
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Introduction: Due to the constant genetic evolution in both the production of broilers, nutritionists must constantly adapt their nutritional recommendations and feeding programs to maximize economic results at all times. These management and nutrition decisions must take into account: the animal (potential for growth), environmental conditions and the composition of the feed, which affect feed consumption and, consequently, the performance of birds. And economic...
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Life Rainbow is glad to invite you to attend a lecture titled "Biotechnological Development and Application of Mycotoxin Degrading Enzymes in Livestock", presented by Asst. Prof. Chung-Feng Chiang, Ph.D. from Department of Animal Science, National Pingtung...
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FIGAP 2026: The Scientific And Technological Exhibition Of The Livestock Industry
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Abiodun Bello (Danisco Animal Nutrition & Health, IFF) explains the results of his research on these enzymes and their impact on amino acid digestibility in this Engormix interview during IPPE 2025 in Atlanta, USA....
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Some producers complain that their meat or egg type chickens suffer from problems in bone or egg shell quality when they include phytase in the diet as a partial substitute for the inorganic phosphorus sources (MCP; DCP; bone meal) according to the matrix value provided by the manufacturing company. Under field conditions, phytase activity is controlled by several parameters. This article will spot the light on utilization of phytase enzyme in poultry nutrition...
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1. Introduction In poultry nutrition, soybean meal is one of the main protein sources used due to several factors such as the percentage of crude protein (CP), its good amino acid profile, and its bioavailability [1]. However, the existence of antinutritional factors (AF) in soybean meal has been shown to have a considerable effect in reducing the bioavailability of elements in this product, such as phosphorus [2]. There is a variety of AF, including lectin, raffinose, phytate,...
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Rajeev Verma, from ABTL, manages poultry feed operations across Northern India, focusing on high-production. With expertise in enzyme-based feed solutions, Raju addresses regional challenges like viral outbreaks and raw material price fluctuations, driving success and scientific advancements in the industry....
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