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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.
Introductions: Non-starch polysaccharides (NSPs) encapsulated in feed grains' cell walls contain valuable nutrients that may be wasted since some animals' endogenous enzymes cannot digest them. Xylanase feed additives degrade grain cell walls, releasing entrapped nutrients to the animal. The soluble portion of NSPs increase digesta viscosity, slowing the passage of feed through the digestive system and preventing an animal's natural enzymes from acting upon...
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In 2021 mycotoxins semiannual survey, Life Rainbow Biotech randomly collected 230 feed samples of raw materials and feed mills in farms and analyzed. The samples were tested for Aflatoxins (B1, B2, G1, and G2), Zearalenone, Fumonisins (B1, B2, and B3) and Deoxynivalenol (DON) by the ELISA Mycotoxin analysis kit. Results: 230 feed samples collected, and 78% were contaminated with deoxynivalenol and 86% contaminated with Aflatoxins (table 1). The maximum concentrations of...
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Dr. Piotr Stanislawski shares his experience with Engormix members on usual mistakes that he has encountered throughout his career....
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Sandro Cerrate (Credinser, LLC) shares advice and tools to improve formulation and find a viable least-cost option in troubling times like these, as he explains in this Engormix video presentation....
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Ermin Magtagnob
ADM Animal Nutrition
Digestive capability of young animals is different when compared to adult growing pigs and chickens. In this TechTalk, Ermin Magtagnob, Novus Technical Services Manager from Southeast Asia and Pacific, discusses how protease enzymes can assist in managing gut health problems associated with undigested proteins....
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Robert Swick
Robert Swick and 5 more
University of New England
University of New England
A study was conducted to investigate the hypothesis that over-processing (OP) of meat and bone meal (MBM) exacerbates infection with necrotic enteritis in normal and high phytase diets. A total of 768 Ross 308 male chicks were randomly assigned to 8 treatments with 6 replicate floor pens each housing 16 chicks using a 2 × 2 × 2 factorial arrangement of treatments for 42 d. Factors were: NE challenge, no or yes; phytase* level, 500 or 5000 FTU/kg (both using 500 matrix values for...
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Carlos Lopez Coello
UNAM México
UNAM México
INTRODUCTION Soybean meal´s good amino acids (AA) balance makes it an excellent protein source in poultry diets, although it does have the disadvantage of containing antinutritional factors such as trypsin inhibitors and lectins. These can negatively affect animal growth if the SBM is not adequately processed(1) using a proper cooking time and temperature to deactivate these factors(2). Excessive heat, however, can cause Maillard reactions, destroying thermolabile AA such...
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"In the market we stand for quality, superior supply reliability, and a high level of safety and technology standards in our assets. The backward integration in Mobile eliminates transportation of hazardous chemicals and shows our continued commitment to responsible care and business sustainability. This ultimately positions us even better as a reliable partner for our customers in the Americas," says Dr. Emmanuel Auer, head of the Animal Nutrition business line at Evonik....
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Robert Swick
Robert Swick and 5 more
University of New England
University of New England
Phytate is a polyanionic molecule with the capacity to chelate Ca, forming mineral-phytate complexes. The presence of these complexes decreases the efficacy of phytase. Ca-phytate formation is dictated by molar ratios of the constituents, gastrointestinal pH and the concentration of dietary Ca relative to P (Sommerfeld et al., 2018). The hypothesis of this study was that a high dietary Ca to P ratio will reduce the ability of phytase to hydrolyze phytate, which will exacerbate necrotic...
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Joaquin Armando Paulino Paniagua
Universidad ISA (Instituto Superior de Agricultura)
Universidad ISA (Instituto Superior de Agricultura)
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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Samiru Sudharaka
USDA - United States Department of Agriculture
USDA - United States Department of Agriculture
Dietary fat and oil are potential alternative energy sources for fast growing broiler chickens (Meng et al., 2004). Nevertheless, hampered fat digestion and absorption were reported in young broiler chickens with incompletely developed digestive tract (Al-Marzooqi and Leeson, 2000). Addition of emulsifier and lipases to a diet is one strategy to improve energy utilization and subsequent growth performance in broiler chickens when fed a high fat diet (Siyal et al., 2017). Studies...
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Optimized production setup through construction of a methyl mercaptan plant in Mobile, Alabama Consistent implementation of asset strategy, safeguarding supply security in the Americas Investment as continued commitment to responsible care and sustainability 23 February, 2022. Germany, Essen. Evonik will build a methyl mercaptan plant at its site in Mobile, Alabama in the U.S. Methyl mercaptan is an intermediate in the production of MetAMINO®...
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A healthy chicken gut is essential for optimum digestibility, maximum nutrient absorption, immunity development and disease resistance. Disruption of gut integrity and imbalance of gut microbiota may have negative effects on feed conversion, productivity, and health of chicken. For the last few decades in poultry production, antibiotic growth promoters (AGPs) have been widely used in poultry diets to promote growth, improve feed efficiency and control dysbacteriosis and enteric...
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John Thomson
Alzchem Group AG
Dr. John Thomson, U.S. Sales Manager for Feed Additives at AlzChem, highlights the different parts of the next evolution of Animal Nutrition. Creamino® increases the creatine supply to the cells and thus enables additional improvements in growth and health....
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Cadogan, D.J
Cadogan, D.J and 5 more
Feedworks
INTRODUCTION Poultry production is one of the largest sources of animal protein supply for human consumption in the world. For many countries, like Australia, chicken-meat is the dominant animal protein, therefore production must continue to expand to supply increasing demand. In Australia, for instance, per capita consumption of chicken-meat is predicted to increase by 7.9% over the next 5 years [1]. Furthermore, feed represents 65% of total chicken-meat production cost [2],...
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INTRODUCTION The rapid growth of modern broilers in a relatively short period of time requires a parallel increase in the size or capacity of supply organs, such as those of the cardiovascular and respiratory systems. However, due to the slower development of these organs relative to body growth rate, the capacity to balance body energy is compromised, particularly under extreme environment conditions, such as cold stress (Shahir et al., 2012; Shinder, 2002). Cold...
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Introduction Barley ranks fourth in global cereal production after corn, wheat and rice. About 65% of the world’s barley produced is fed to animals, including poultry. Australia is a significant global producer of barley, ranking in the top five countries with about 5% of global production and is among the top three barley exporters accounting for about 30% of malt and 20% of feed barley trade. Australia is a reliable supplier of two row...
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Dr. Peter Selle
The University of Sydney
The University of Sydney
I. INTRODUCTION Globally, maize and wheat are the major cereal grains used in broiler feed. Maize is predominant in Asia and the Americas, whereas wheat is in Australia, New Zealand and Europe. Extensive research has been undertaken in refining dietary strategies to optimise broiler performance when offered reduced crude protein (CP) diets. In feed, these grains have been optimized by the inclusion of feed enzymes and unbound (crystalline or synthetic) amino acids. Reduced CP...
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Rolando Valientes
dsm-firmenich
The gastro-intestinal tract (GIT) of poultry has a complex and dynamic microbial community consisting primarily of bacteria whose cell wall contains the structural polymer peptidoglycans (PGNs). Bacterial cell wall recycling is a process whereby bacteria degrade their own wall during growth in order to recover released constituents by active transport. These nutrients are then reutilized to either rebuild the wall or to gain energy (Mayer, 2012). However, in both normal and a challenged GI...
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Ahmet PEKEL
Istanbul Universitesi Merkez Kampusu
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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