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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.
Christian Lückstädt of Addcon talks about the use of organic Acids in animal nutrition and its benefits....
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Enzymes are now widely used in animal feed. Various key reasons justify their use. Firstly, enzymes inhibit the action of anti-nutritional factors in the feed, which have an adverse effect on both the animal's digestive system and health. Secondly, enzymes improve access to the nutrients in the feed. Lastly, enzymes compensate for the lack of natural enzymes capable of breaking chemical bonds as well as the lack of enzymes in the undeveloped...
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Introduction
Poor gut health in broiler chickens is a generalized term that means different things to different people (Truscott & Al-Sheikhly, 1977; Tierlynck et al ., 2009). Problems associated with shifts of intestinal bacterial populations (i.e. dysbacteriosis) gained notoriety as a key production issue with the removal of antibiotic growth promoters in the European Union (Hoerr, 1998; Lee, 2002). However, it...
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I. INTRODUCTION Numerous works have shown substantial variation in nutritional value of soybean meals (SBM) due to several factors such as genotype, crushing, anti-nutritional factors, implying a need for better and rapid characterization (De Coca-Sinova et al., 2008; Karr-Lilienthal et al., 2004). During the past two decades, Adisseo has been conducting in vivo studies to evaluate digestibility of amino acids (Green et al., 1987) and...
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Bacillus subtilis DSM 32315 alters immunity, nutrient transporters and cecal microbiome of broiler chickens under necrotic enteritis challenge
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INTRODUCTION Poultry industry present and future is focused on becoming a sustainable industry, on one side by decreasing the consumption of ingredients used also as human food, by increasing the use of alternative feedstuffs, and also by developing technologies to allow an increase on the digestible fraction of the feed, to diminish environmental pollution, for example exogenous enzymes addition to the feed. In the case...
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Myths that have erroneously limited feed-grade amino acid inclusion in poultry diets have been dispelled in these proceedings by presentation of a historical perspective. In addition, recent research has been presented which has allowed for aggressive feed-grade amino acid inclusion that maintains good bird performance in diets with reduced costs and environmental impact. Namely, in the past 10 to 15 years numerous research reports have delineated threonine,...
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Afla V ONE 5 - 300 ppb Method for Total Aflatoxin Detection in Complete Feeds and Pet Food
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INTRODUCTION The use of additives in feed for broilers is increasing every day. Enzymes are the most commonly used in this segment, they are very effective in increasing nutrient availability to broilers and guarantees the farmer a lower cost feed formulations and also an improvement in rearing conditions. Enzymes in the diet and improves the efficiency of poultry production by...
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INTRODUCTION Improving the efficiency of the use of nutrients and causing a formulation to be more precise are the most effective methodologies intended to reduce losses of nutrients and improve performance parameters. According to GUENTER (2002), enzyme supplementation to animals is intended to remove or destroy anti-nutritional factors of grains and increase total digestibility of...
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INTRODUCTION Major advances have occurred in poultry in the last decades, thus making it one of the most developed segments of world agriculture. Many researchers have been conducted in nutrition area in search of alternatives to enable the formulation of rations and more efficient economical, in view of that power has the largest cost in the production of broilers. The use of enzymes...
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Phytate has direct anti-nutritional effects on poultry and swine, causing reductions in performance by lowering amino acid and mineral absorption and increasing endogenous losses. PHYTIN (a deposited complex of inositol hexaphosphate with potassium, magnesium and calcium) - more recognized in animal nutrition as phytate - is the major storage form of phosphorus present in seeds. ...
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Introduction
Phytate phosphorus, in its natural state in feed, forms complexes with different nutrients, including proteins, lipids, and minerals. Exogenous phytases not only release the phosphorus attached to the phytate acid molecule, but also the phosphorus attached to other nutrients, such as calcium and amino acids. The reduction of the cost of phytase in recent years, along with the increase...
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Introduction
Individual feed ingredients commonly used in poultry may vary widely in composition and nutrient availability because of variation in cultivars, growing conditions, processing and storage conditions (NRC, 1994). In spite of this, in recent years the major improvements in nutrition and the efficiency of production have relied on obtaining maximum nutrient utilization from feedstuffs,...
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New tables show that amino acid requirements have been redefined to take into account genetic progress....
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Dear colleagues, What is the recommended concentration of phytase enzyme in final feed for broiler (prestarter, starter, grower, finisher)? FYT what dose it mean? merghani master student animal nutrition ...
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Broiler strains have different nutritional requirements depending on their specific growth performance. Because their genetic evolution might be different, Adisseo looked into the effectiveness of carbohydrase enzymes in the different genotypes. In two different trials carried out at the University of Sao Paulo, in Brazil, we demonstrated that Rovabio ® ,...
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Introduction
Japanese quail egg production has experienced tremendous growth in recent years. Brazil is now one of world's major quail egg producers, with one of largest national quail flocks. Brazilian quail industry is supported by small and medium producers, typically with a chicken egg production background, and an entrepreneur spirit.
Virtually together...
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Introduction In Venezuela, one of the most important protein supply sources for the population is broiler meat, representing 65% of the total animal protein intake (Fenavi 2007). From an economical standpoint, feed represents 60 - 70 % of broiler production cost, according to the United Nations Organization for Food and Agriculture (FAO) (2003). The use of exogenous enzymes...
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Introduction For years, many nutritionists around the world thought that NSP enzymes and, more specifically, xylanases, provided little or no benefit when used in diets based on maize-soy. During the past 10 years, however, a large number of trials with xylanase Nutrase Xyla in maize-soy diets, both in experimental centers as in field, have shown that the product has special features....
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Introduction
The majority of poultry feeds is composed by plant-origin ingredients of which most of the phosphorus (P) and calcium (Ca) and other minerals with a positive charge are present in the form of insoluble phytate (Maenz, 2001). Phytate is considered an antinutritional factor for monogastrics, since it structure includes highly ignitable orthophosphate groups, rious for cation...
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Introduction
Phosphorous just as nitrogen and potassium, are essential nutrients for plants and are added to soils as fertilizers to improve yields. Plants absorb phosphorous as phytic acid, but it is not available for monogastric animals. Vegetable-origin food, particularly corn and soybean meal, are added in big amounts to the majority of bird diets. For this reason, inorganic sources need...
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