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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.
Dr. John Thomson from AlzChem explains some of the benefits of using creatine in breeders hens...
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Can creatine supports muscle growth, the immune system or energy efficiency? In this interview, Dr. John Thomson from Alzchem responds to this question...
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Lost in the Market Uncertainty Caused by the Outbreak
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Dr. Piotr Stanislawski shares his experience with Engormix members on supplementation through feed or water, when and why do one or the other....
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Introduction Coccidiosis is the most common parasitic disease caused by Eimeria spp., leading to over $14 billion economic loss worldwide annually (Blake et al., 2020). The most prevalent Eimeria spp. in poultry include E. tenella, E. maxima, E. acervulina, E. brunetti, E. necatrix, E. praecox, and E. mitis and have different level of pathogenicity and specific infection sites in the intestine (Cervantes et al., 2020). Eimeria spp. invade intestinal epithelial tissues and induce...
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Introduction: Betaine has been known as a functional nutrient widely used in animal nutrition during the last decade. It’s the trimethyl derivative of glycine, and is present in many plants and animal tissues such as aquatic invertebrates and sugar beets. As a feed additive, betaine is commonly used as anhydrous, monohydrate, and betaine hydrochloride. According to the latest research, the nutritional properties of betaine HCL is equal to anhydrous while offering...
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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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Investment will safeguard long-term supply of MMP to European methionine production hub
Improvements made possible by production process innovations
Increase in efficiency and safety at the site
Essen, Germany. Evonik has invested €25 million developing and expanding its methylmercapto-propionaldehyde (MMP) production plant in Wesseling, Germany, in the latest move to strengthen its world-scale global methionine production...
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Introduction Acidifiers are combination of organic acids. Organic acid is a chemical compound from the class of fatty acids that have a pH below 7 Organic acids included in feeds in order to lower the pH of the feed, gut, & microbial cytoplasm thereby inhibiting the growth of pathogenic intestinal microflora. ...
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Introduction Over the years, nutritionists have studied several ways to determine the ideal dietary supply of essential amino acids to optimize poultry performance. However, considering only performance objectives without taking into account economic factors may not reflect maximum profitability, since optimizing performance is not always viable (Pack et al., 2003). An economic approach to determine amino acid supply by minimizing feeding costs and maximizing revenues was...
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It has been proposed that the metabolic energy requirements of free-ranging hens are up to 15% higher compared to caged hens due to the increased metabolic activity required for locomotion and thermoregulation (GfE 1999; Tiller 2001; Aerni et al. 2005). The aim of the study was to investigate the impact of various feed strategies on laying performance and egg quality of free-range laying hens. A total of 9,375 hens, placed amongst 5 flocks of 40,000 hens each were selected according to their...
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Digestible lysine requirements of male broilers from 1 to 42 days of age reassessed
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1. Introduction The mucosal lining of the small intestine is a highly functional epithelium comprised of absorptive, secretive and sensory cells, which are constantly renewed by multipotent intestinal stem cells (ISC). ISC reside within crypts, and constantly proliferate for self-renewal and generation of progenitor cells, which differentiate into the functional cells that line lumen-facing villi (Carulli et al., 2014; Potten and Loeffler, 1990). Compartmentalization of the...
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Hypothesis Guanidinoacetic acid (GAA) is synthesized in the liver and kidneys from arginine (Arg) and glycine (Gly) and subsequently methylated by S-adenosylmethione to creatine (2). Heat-stressed birds respond to the presence of higher uric acid concentration and changes in electrolyte balance by increasing the usage of osmoprotectants. These osmolytes are viable endogenous precursors for Gly (3). On the other hand, high supplemental lysine level on modern genetic broiler...
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INTRODUCTION Least cost feed formulation relies on the assumption of additivity of digestible nutrients from the contributing ingredients. It is generally accepted that assessment of the nutritional value of individual raw materials underestimates their eventual contribution in a complex diet because of the often-substantial influence of endogenous loss. The premise is that a proportion of nutrients that leave the terminal ileum are inevitable (or “basal”) losses and...
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1 INTRODUCTION During the last decades, the productivity of laying hens has improved significantly, with higher number of eggs produced over the laying cycle and higher efficiency to utilize feed nutrients. This increase in productivity implies in a change in the requirements, and consequently, these hens become more demanding in nutrients, mainly amino acids (Elliot, 2008). Optimization of protein supply by understanding the amino acid needs of these hens requires a thorough...
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INTRODUCTION Amino acids (AA) and crude protein (CP) intake during the rearing phase in broiler breeders have demonstrated to affect body composition and reproductive performance in the laying period (Joseph et al., 2000; Ciacciariello and Tyler, 2013; van Emous et al., 2013, 2015a, 2015b). Modifications of these nutrients added up to the adjustment of feed allocation may alter BW (van Emous et al., 2013; Soumeh et al., 2018), organ development (Lesuisse et al., 2017), egg...
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INTRODUCTION Dietary amino acids (AA) and crude protein (CP) have been demonstrated to affect BW, body composition, organ development, and feathering in broiler breeder pullets (Hudson et al., 2000; Ekmay, 2011; van Emous et al., 2013). Breeder pullets are fed to achieve target BW, and meeting growth objectives during the rearing phase has been related to improvements in reproductive parameters such as fertility, hatchability, and embryo mortality (Leeson and Summers, 2000;...
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BE THE MASTER OF ENERGY. Dr. Pierre-André Geraert, Adisseo's director of Scientific Marketing, points out the benefits of NESTOR, a service to obtain nutritional recommendations for poultry & swine in net energy, digestible amino acids, and minerals to adapt them to specific conditions ...
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Edgar Oviedo-Rondón (NC State University) discusses the importance of amino acids and how to find the proper levels to achieve better growth and development....
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Lost in the Market Uncertainty Caused by the Outbreak
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1. Introduction Nutrition plays a pivotal role in maintaining the health of pullets, quality egg production by laying hens and body growth of broilers (Wang et al. 2017). Nutraceuticals are the nutrients or constituents of animal diet that have nutritional and pharmaceutical importance by preventing various diseases, possessing immunomodulatory potential, providing health benefits and consequently increasing productivity (Dhama et al. 2015; Aronson 2017; Helal et al. 2019;...
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INTRODUCTION Poultry needs protein for growth, egg production, immunity, enzymatic activity, tissue turnover, and much more (Beski et al., 2015). Similar to other essential amino acids ( AA ), supplemental branched-chain amino acids ( BCAA ) such as isoleucine and valine allow for a reduction in the crude protein ( CP ) in the diet, whereas leucine is generally found in higher amounts in the cornbased diet (NRC, 1994; Waldroup et al., 2002). A low CP diet...
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