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Amino acids in poultry nutrition

Adequate provision of dietary amino acids is required to maintain normal immunocompetence and protection of the host from some diseases in all species (Beski et al. 2015). Therefore, the development of immune function in poultry will be promoted if they receive sufficient amino acids in their diets. The essential amino acids for poultry are arginine, glycine, histidine, leucine, isoleucine, lysine, methionine, cystine, phenylalanine, threonine, tryptophan, and valine. Out of these, the ones critical in practical diets are arginine, lysine, methionine, cystine and tryptophan.
Raquel Araujo
Trouw Nutrition
    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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Rose Whelan
Evonik Animal Nutrition
Evonik Animal Nutrition
Conclusions Dietary methionine source (DL-Met, L-Met or DL-HMTBA at 65 % bioefficacy) did not affect the ratios of reduced to oxidized glutathione or reduced to total glutathione in intestinal tissue, liver or breast muscle None of the dietary methionine sources (DL-Met, L-Met or DL-HMTBA) consistently affected biomarkers of antioxidant capacity (ferric reducing ability) or oxidative stress (TBARS, Protein Carbonyl) when comparing several tissues and two time...
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The objective of this trial was to compare the effects of OH-Methionine compared to DL-Methionine on laying performance and egg quality of Babcock laying hens on a 14-week period under tropical climate. The work was presented in a poster at 22nd ESPN (European Symposium in Poultry Nutrition) in Gdansk (Poland) and in an oral communication by Dolores Batonon-Alavo at PSA (Poultry Science Association) in Montréal (Canada). Trial methodology The study was performed on...
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Winston Samuels
Maxx Performance
Essential amino acids appear to be the most efficient nutrient for the stimulation of muscle protein synthesis in older and younger subjects, though the cellular mechanisms responsible are under investigation. In addition to being the precursors for protein synthesis,...
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Jaap Van Milgen
French National Institute for Agricultural Research (INRA)
French National Institute for Agricultural Research (INRA)
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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Abstract A study was performed to compare the effects of dietary supplementation of DL-Methionine (DL-Met) or Hydroxy-Methionine (OH-Met) at the requirement in sulfur amino acids on laying hen’s performance under tropical summer season. Four-hundred and forty-eight Babcock layers were randomly allocated based on their body weight in two treatments of 14 replicates each (16 hens per replicate). Hens were offered either DL-Met or OH-Met at the requirement from week 18 to 31...
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Evonik’s ThreAMINO® contract manufacturer declares a force majeure event Shortage of supply affects all regions Limited stock of material available Due to the Covid-19 virus outbreak, Evonik’s contract manufacturer had to shut-down its production facilities. Both production and shipping of the amino acid ThreAMINO® are affected. Dr. Emmanuel Auer, Head of Animal Nutrition Business Line at Evonik, explained:...
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Edgar O. Oviedo-Rondón
North Carolina State University - NCSU
North Carolina State University - NCSU
Sorghum can be utilized to replace corn in areas where corn is not readily available. Serine protease has been proposed to improve the digestibility of sorghum because it could degrade disulfide bonds of kafirin proteins. One experiment was conducted to evaluate the effects of sorghum inclusion level and the addition of a serine protease on chicken live performance from 1 to 35 d of age. Eight treatments from a 4x2 factorial arrangement with 4 inclusion levels of...
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Rhodimet Itw techno Practical Benefits - Liquids are already a major part of the daily routine of feed mills and recent feed mills projects are choosing liquids for their assets. Marc Perel, Solution Application Manager, at Adisseo gives some explanations in the video....
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What are the key steps to look at during the design of a liquid methionine application equipement? Marc Perel, Solution Application Manager, at Adisseo is answering this question in the video....
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Introduction In the past decades, the improvement of production efficiency has resulted in the tremendous success in the poultry industry. Feed Conversion Ratio has decreased from 2.8 in the 1950s to less than 1.6 currently. Over the past 25 years, the number of eggs laid by a single laying hen increased by at least one egg per year. As the production efficiency has improved, the poultry industry is also changing according to customer demands. The trend of...
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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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Dr. Peter Selle
The University of Sydney
The University of Sydney
Introduction The influence of protein and energy on growth performance and carcass traits in broiler chickens have been intensively studied in the literature and the investigation is ongoing because the performance of modern broiler chickens improves every couple of years as a result of successfully selective breeding program. However, starch and lipid are the two major source of energy in typical broiler diets and little information about the influence of starch and lipid on...
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Ewa Sujka talked about the product being tested on laying hens and without a negative impact on laying performance and egg quality. In fact she said the product reduced the cost of the diet and makes you save money. She also spoke about the improvement the product gives to egg quality. *Certain information associated with products, their composition and claims may be different depending on the geographical region and may not be applicable in all countries. Liptosa reserves the right to adapt...
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Introduction Chronic heat stress (HS) is a great concern in all types of poultry especially broiler chickens. Reductions of feed intake (Teeter ., 1985) and lower growth rate as well as reduction in feed efficiency (Geraert ., 1996) have been reported in poultry under HS condition (Ramnath., 2008). Birds attempt to compensate for their reduced ability to dissipate heat during heat distress by increasing their physiological processes (such as, elevated body temperature, panting...
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Peter Chrystal (Baiada) gave a presentation on different tests, models and tools to better analyze feed formulation and poultry nutrition, during the Latin American Poultry Congress in Lima, Peru....
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Juarez Donzele
Universidade Federal de Viçosa - UFV
Universidade Federal de Viçosa - UFV
Introduction Quail farming is very important for providing jobs and producing high quality protein at a low cost. Nutrition during the growing phase of the birds can influence their performance during the production phase. Most research has focused on the nutritional requirements of quails during the laying phase and there is little information about requirements during the growing phase. Quails are characterized by early sexual maturity (40 days), demanding feeding programs...
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Todd Applegate
University of Georgia
University of Georgia
Todd Applegate, Head of Poultry Science Department at the University of Georgia, talked about the advances that the poultry industry has had in understanding probiotics and their effect. Also, Applegate went over his researches on amino acids and mycotoxins, during IPPE 2017 in Atlanta, USA....
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