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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.
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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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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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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Endogenous Amino Acid Flows are Influenced by Age of Broiler Chickens
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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.
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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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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, 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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INTRODUCTION One of the most important roles of animal production is to provide high quality protein for human consumption and, to achieve this proposal, animals should be fed correct proportions of high quality protein in the diets. Amino acids are key factors in animal nutrition since protocols used to evaluate protein quality are related to amino acid supply. Poultry feed formulation was until recently based on the concept of crude protein, which frequently resulted in...
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Alex Corzo (Aviagen) gave a presentation that touched on very important subjects such as broiler nutrient requirements and environmental impact, during the Multi-State Poultry Feeding and Nutrition Conference in Indianapolis, USA....
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INTRODUCTION There is increasing evidence that cereal grains used for poultry feed are commonly contaminated with mycotoxins. Mycotoxins are toxic compounds produced by fungi, when present in the feed depress nutrient quality of the feed and hence the health and performance of poultry. The tropical and subtropical climate with hot and humid condition prevailing in India coupled with poor harvesting of crops, inadequate drying and storage facilities, and insect infestation...
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INTRODUCTION Aflatoxin is the common name for a group of chemically related compounds (Moss, 1996) produced by certain strains of Aspergillus flavus and A. parasiticus in the feedstuffs as poisonous secondary metabolites. Aflatoxins are stable once formed in grain and are not degraded during normal milling and storage process (Brown, 1996) and have been demonstrated to be carcinogenic, mutagenic and teratogenic (Cole and Cox, 1981). It impairs humoral and cellular immune...
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