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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.
INTRODUCTION The main idea of using phytase in the diet for broilers is based on the reduction in the content of available phosphorus ( av P) accompanied by the inclusion of this enzyme. With this, it is expected that the av P content present in the diet, added to the content of phytate P ( phy P) made available by the catalytic action of the phytase, meets the P requirement of the bird (HAN et al., 2009). The industry related to broiler nutrition,...
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Introduction Current broiler growth rate is partly the result of an intense genetic selection; 1 therefore, feeding is important to achieve the maximum productive expression. Success attained until now in this practice has been due to better knowledge of the functions that different nutriments carry out, which in turn allows higher precision when establishing nutrimental needs. 2 To be able to feed...
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Srinivasa Farms and Hy-Line: Pioneering Growth in India’s Poultry Market
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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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Innovative Directions in Aflatoxin Testing Point to Measureable Gains in Quality Of Lab Data
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Michaela Braun (Kansas State University) presented her results on this research regarding the use of added enzymes in broilers, during IPPE 2020 in Atlanta, USA....
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An impact of Deoxynivalenol produced by Fusarium graminearum on broiler chickens
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WILMINGTON, Del – DuPont Nutrition & Biosciences announced today the launch of the industry-leading novel phytase enzyme, Axtra® PHY GOLD. The enzyme offers superior performance compared to other phytases on the market, delivering greater feed cost savings to producers. Axtra® PHY GOLD will be available in the United States, Mexico and India and eventually worldwide, pending regulatory authorizations.
Recent scientific studies demonstrate that Axtra® PHY...
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Betaine supplementation has numerous positive effects on animal performance. Recent studies with betaine from sugar beet molasses looked if this naturally derived betaine can substitute a certain amount of added methionine in broiler diets. Betaine (BET) or trimethylglycine is a zwitterionic (neutral molecule with bipolar structure) quaternary ammonium compound. It was first discovered in the juice of sugar beets (Beta vulgaris) and afterwards found in other plants (spinach)...
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Introduction Calcium reduction and phytase supplementation were considered an important combination in broiler nutrition. Wooden breast (WB) has been considered one of the most important challenges in the Poultry Industry in the 21st century. The superdosing of phytase can affect metabolic functions in the early life of broilers, and the studies with the interaction of this enzyme with calcium, phosphorus and carcass evaluation must be incremented. Based on this, calcium...
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Enzymes are one of the many types of protein in any biological system involved in anabolic and catabolic pathways of digestion and metabolism. They are essential in catalyzing the rate of a reaction, but are not themselves altered by the reaction, and tend to act on one...
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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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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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Srinivasa Farms and Hy-Line: Pioneering Growth in India’s Poultry Market
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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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