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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.
Concerns exist as to whether use of phytase enzymes in poultry feed lead to decrease feed intake during excessive heat, characteristic of the summer months. Reduction of phytase reduces intake of calcium, phosphorus and trace minerals which are...
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Enzymes are widely accepted to improve the utilization of nutrients in poultry diets and increase the capacity of birds to perform on less digestible feed ingredients. However, increasing volatility in raw material prices for feed ingredients and stricter regulations on feed safety to control salmonella in poultry production, are changing the way we formulate and process poultry diets and requires more sophisticated enzyme technologies to maximize the efficacy of...
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Effectiveness of Bacillus licheniformis-Fermented Products and Their Derived Antimicrobial Lipopeptides in Controlling Coccidiosis in Broilers (Extract)
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Trypsin inhibitor (TI) analysis is considered the best in vitro method to predict anti-nutritional factors in soybean products. TI in solvent-extracted soybean meal (SBM) can vary according to genetics, under-processing, over-processing, etc, and high levels are associated to outbreaks of feed passage with consequent decrease in broiler performance. The objectives of the study were: 1) determine the impact of Brazilian...
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To study the impact of dietary protein on ileal Clostridium perfringens and the intestinal barrier two diets were used, one with 22% crude protein (CP; basal diet) and 1.21% digestible lysine, and a second diet with 30% CP and 1.38% digestible lysine (High protein diet; HP). Each diet was tested with or without 0.05% of a Bacillus licheniformis and its derived protease (CIBENZA® EP150 : B+P) resulting in 4 groups in a 2x2 arrangement (9 replicates/8 birds each one for 28 days)....
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The objective of the current study was to evaluate the response to phytase, in broilers fed the same amount of phytate P (PP) from SBM and RB, on apparent ileal P digestibility (AIPD) and bone ash % (BAP). A total of 576 Ross 308 male broiler chicks were fed a common corn-SBM-based diet from d 1 to d 15. From d 15 to 23, birds were fed 12 semi-purified diets containing 0.25% PP from either a SBM diet (0.44% total P) or a RB diet (0.35% total P), with limestone...
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Introduction Lysine (Lys) is the second limiting amino acid (AA) in practical corn-soybean meal diets. Growth performance and proper muscle development of broiler chickens is highly dependent of an adequate dietary supply of Lys. Although all AA coded in the nucleic acid sequence are required for muscle protein synthesis, also depending on its frequency and dietary supply, Lys is the main essential AA required for muscle building for broilers [1]. Lysine has also gained...
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1. Introduction Xylans, also known as arabinoxylans (AX) and pentosans, are the most abundant hemicelluloses in the cell walls of monocotyledonous plants, such as cereals. The presence of these polysaccharides has a direct negative impact on energy availability of monogastric diets (Choct and Annison, 1990), largely due to the direct effect of soluble AX on increasing digesta viscosity. These negative effects can be combatted by supplementing the diet with endo-b1,...
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Woo Kyun Kim (University of Georgia) discussed a recent research on supplementing herbal methionine through feed and water, during IPPE 2018 in Atlanta, USA....
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Introduction Nanotechnology is regarded as the ability to manipulate measure, manufacture and make predictions at the scale of 1–200 nm. At the nanometer dimension, materials revealed novel properties, different to those of both, the isolated atom and bulk material that the properties depending largely on the size of the particles from which the material is made. The environmental stress can decrease production and all other important economical...
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Importance of Methionine Nutritionists agree that livestock diets require supplementation with some essential amino acids to increase the efficiency of protein utilization and to reduce nitrogen excretion. Methionine is an essential amino acid and is necessary for growth. Numerous trials have shown that providing adequate levels of methionine are required to maximize performance of poultry and pigs. Additionally, methionine plays biological roles beyond protein synthesis,...
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Yang Lin (University of Georgia) explained the results of her research on growth performance, nutrient utilization and short-chain fatty acid profile in broilers, during IPPE 2020 in Atlanta, USA....
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Overview of Performance of Listed Vitamin Companies in 2023
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Diego Martinez (University of Arkansas) talked about strategies for obtaining higher breast yield, as well as the importance of finding new ways to analyze data, during IPPE 2020 in Atlanta, USA....
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-According to the United Nations, by 2050 there will be a world population of 9700 million inhabitants. -The effects of climate change with prolonged drought will drastically affect grain production. -The depletion of non-renewable fossil energy reserves (oil, gas) will pressure the production of cereal ethanol. -There will be an unprecedented competition between humans and animals for food resources (Corn, wheat, sorghum, soy, etc.). -The producers will be forced to...
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Improving gut barrier and microbiota to enhance birds' immunity and resilience
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Because there is still more value to extract from feed, Adisseo has developed Rovabio® Advance Phy. As the second generation of Feedase, Rovabio® Advance Phy catches the entire potential of feed and allows alleviating animal production footprint on earth resources....
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Introduction The high cost of inorganic phosphate has influenced the direction of research and the industry to discover alternative sources of phosphorus (P) or improve the availability of P, for broilers. The phytase enzyme has been highlighted in the nutrition of non-ruminants as a tool to reduce the dietary inclusion of inorganic P and to decrease nutrient excretion through the excreta (WALDROUP et al., 2000; GRAÑA et al., 2013). With the growth and narrowing of an...
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Introduction Commercial egg production is associated with various stresses decreasing productive and reproductive performance of layers. It is proven that most of stresses in poultry production (technological: chick placement, vaccinations and transfer to breeder houses; environmental: heat stress, high ammonia, etc.; nutritional: mycotoxins, misbalances of vitamins, minerals, amino acids, etc.; or internal: bacterial and...
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Adequate pullet nutrition is essential to obtain the BW and development suitable for reproduction. An experiment was conducted to determine the effects of four amino acid (AA) dietary levels fed to broiler breeder pullets during the rearing phase from 5 to 24wk on BW, abdominal fat deposition and development. A total of 1,360 Cobb-500 slow-feathering (SF) pullets were placed in 16 floor pens (85/pen). Up to 4wk all pullets were fed one starter diet in crumbles and after 29d of age fed with...
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Effectiveness of Bacillus licheniformis-Fermented Products and Their Derived Antimicrobial Lipopeptides in Controlling Coccidiosis in Broilers (Extract)
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Introduction: Enzymes in animal feed began to be used in the 80s. The pioneer countries were the Scandinavians, Great Britain, Canada and, particularly, Spain. The first food sector that reacted dramatically was poultry farming. The application of enzymes became total in the production of meat chickens in the 1990s. Poultry farming located in areas of cereal production with a high content of non-starchy polysaccharides (PNAs), components of difficult digestion by the...
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INTRODUCTION Coccidiosis is considered one of the most important poultry diseases worldwide due to the economic losses it produces in performance and due to medication usage (Williams, 2002; Dalloul and Lillehoj, 2005). The use of vaccines to prevent coccidiosis has proven to be successful (Lee et al., 2009; Danforth, 1998; Williams and Gobbi, 2002) and is widely used today in the U.S poultry industry (Agri-Stats, Fort Wayne IN). However, in the process of developing immunity,...
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