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.
The objective of the presented study was to extract and identify the arabinoxylanoligosaccharides (AXOS) released in vivo in the different segments of the gastro-intestinal tract (GIT) of broilers and demonstrate the influence of xylanase on arabinoxylan (AX) utilization. The study used samples from digesta collected from the gizzard, ileum, ceca and excreta of broilers, fed wheat-soybean meal diet without (CTL diet) or with xylanase supplementation (ENZ diet). Molecular weight (Mw)...
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Bromelain is a mixture of proteinases derived from the stem and fruit of pineapple (Ananas comosus) and may have additional antibacterial and anti-inflammatory properties (Jančič and Gergieva, 2021). This study assessed the effect of dosage and administration methods of a bromelain-containing product (ANR-pf®, Anatara Lifesciences Ltd, Australia), on bird performance under a subclinical necrotic enteritis (NE) challenge. A total of 540 Ross 308-day-old male chicks were...
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January 25, 2027
United States - Georgia - Atlanta
1. Introduction The poultry diet is balanced for metabolizable energy and protein through the incorpo ration of several ingredients and additives. The cost of many cereal grains and legumes used in making poultry feed is increasing due to the growing markets utilizing them as food and fuel [1]. To counter this, alternative feedstuffs such as agricultural co-products, including wheat middlings, soy hulls, oil cakes, distillers dried grains and solubles (DDGS), and sugar beet...
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1. Introduction Coccidiosis is a parasitic disease caused by an apicomplexan parasite of the genus Eimeria, which infects different parts of the intestinal tract depending on the species of Eimeria [1]. Eimeria spp. invade intestinal cells and cause physical damage to the intestinal epithelium, producing hemorrhagic diarrhea and disrupting the normal functioning of the intestinal tract [2]. This leads to impaired nutrient absorption and compromised gut health [3]. On the other hand,...
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I. INTRODUCTION Exogenous phytases increased apparent ileal digestibility coefficients of 17 amino acids by an average of 4.13% (0.833 versus 0.800) in one meta-analysis (Cowieson et al., 2017); however, the scale of responses varies. Phytases increased apparent ileal digestibility coefficients of 16 amino acids by averages of 12.7%, 7.24% and 9.15%, respectively, across three selected assays (Amerah et al., 2014; Truong et al., 2015; Martínez-Vallespín et al., 2022)...
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1. Introduction Over the years, broiler chickens have been selected for rapid growth, which makes them very efficient at depositing body protein in a short period of time. This is important since the broiler sector is expected to contribute to the growing global demand for poultry meat. In light of this, the quality of proteins fed to poultry is becoming more important. Animal and plant ingredients are the main sources of protein used in poultry diets and they vary in...
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Global feed Enzymes Market on a Growth Trajectory Valued at USD 1.49 billion in 2025, the market is projected to reach USD 2.38 billion by 2034. Asia Pacific has emerged as the most influential region, accounting for 34.51% of the global market share in 2025. This dominance underscores the region's...
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1. Introduction Poultry is the most consumed animal protein source in the world, and the trend is expected to continue increasing [1]. The world population reached 8 billion in 2022, and is likely to reach 9 billion in 2037 [2], which will continue to increase pressure on the global chicken-meat industry. One way to meet this increasing demand is to improve the efficiency of chicken-meat production. Precision nutrition is a strategy to improve growth efficiency, reducing the...
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INTRODUCTION There is an increasing demand for animal-based protein to meet the nutritional needs of the ever-increasing global population. The protein obtained from broiler meat is one of the most promising animal-sourced proteins, considering its quality and affordability. To contribute to the supply of animal-based protein, fastgrowing broiler strains have been developed for higher muscle yield in a short period. However, broiler’s faster growth in a limited time results in...
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INTRODUCTION Reducing the production cost of quality meat and eggs for the ever-growing world population is a prime target of the poultry industry. Conventional feed ingredients like corn and soybean meal are widely used in broiler feeding programs, which increase the competition among food and feed and lead to raise production costs (Donohue and Cunningham, 2009; Stefanello et al., 2016). Several strategies were attempted to minimize the cost per unit production, such as...
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DESCRIPTION OF PROBLEM There are growing concerns that the continual feeding of inorganic P is leading to the development of eutrophication of surface waters. Excessive P runoff from soil causes an accumulation of P in water sources, and this can result in toxic algal blooms and fish kills [1]. The availability of P from feedstuffs of plant origin is low for poultry because a greater proportion of the total P is present in the phytate form, a form that has low availability...
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Introduction Heat stress is one of the major problems of poultry in heat areas of the world including Iran, especially in summer, leading to reduced performance, the production, feed intake, growth rates and effective use of the feed (Sahin ., 2009). In general, birds have a thermal comfort zone, which ranges between 18 to 22 ° C and no problem for the physiological regulation of body temperature in this range will. Birds lack sweat glands, increase in...
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North American Feed Market Overview and Broiler Industry Dominance
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Introduction The modern poultry industry is under increasing pressure to optimize efficiency following the phase-out of antibiotic growth promoters (AGPs). To achieve this, we must prioritize gastrointestinal tract (GIT) health to ensure effective nutrient...
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INTRODUCTION Cereal grains and vegetable protein sources contain between 10-75% of non-starch polysaccharides (NSP). NSP in cereals form part of the cell wall structure and in vegetable proteins, such as legumes, may also play a role as an energy storage material. As far as monogastric animal nutrition is concerned, NSP as the major part of fibre (fibre is the sum of NSP and lignin) are regarded as feed components that...
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FIGAP 2026: Global Feed Industry Highlights
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Garros Fontinhas, Global Category Manager for Feed Digestibility Portfolio at Adisseo, explains how decades of enzyme innovation, the Feedase holistic approach, and targeted solutions enhance nutrient release, sustainability, and gut health in animal production. ...
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WHY IN VITRO METHODS MATTER Traditionally, diet formulation has relied on in vivo trials to determine digestible and metabolizable energy. These trials are accurate but slow, costly, and raise ethical concerns. Existing in vitro systems, meanwhile, are often too simplistic or poorly standardized to replace live-animal trials. Simulated Digestion System (SDS III) changes this. Developed over more than a decade of research, it uses computer-controlled digestion to simulate the...
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John Boney (Penn State University) comments on nutrient segregation, feed quality, pellet degradation, and on-farm feed sampling methods, in this Engormix interview....
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Dr. Ajay Awati (EW Nutrition) comments on the advantages of using a xylanase product, among them thermostability, during this Engormix interview at IPPE 2026 in Atlanta. ...
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Introduction to Immunity Immunity refers to the body's ability to resist or defend against infections, diseases, and other unwanted biological invasions. There are two main types of immunity. Innate immunity is the host's first line of defense against invading pathogens but some pathogens particularly immunosuppressive viruses have evolved sophisticated mechanisms to evade the host's innate immune responses and survive within the host. Adaptive Immunity targets...
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Dr. Shukun Yu has joined Univook Industry as Senior Consultant to spearhead the promotion of their innovative feed digestion simulation system, named Computer Controlled Simulated Digestion System, for monogastric animal nutrition
The feed industry welcomes back a familiar and influential figure, Dr. Shukun Yu, who has joined China-based Univook Industry as Senior Consultant. After a distinguished 32-year career with Danisco, DuPont, and IFF as...
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