Effects of Low-crude Protein Amino-acid Supplemented Diets Formulated on Lysine PDF Download
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Author: José Román Moreno Salgado
Publisher:
ISBN: 9781109430301
Category : Swine
Languages : en
Pages :
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Book Description
Author: José Román Moreno Salgado
Publisher:
ISBN: 9781109430301
Category : Swine
Languages : en
Pages :
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Book Description
Author: Otto Mario Marin-Ramirez
Publisher:
ISBN:
Category : Amino acids
Languages : en
Pages : 218
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Book Description
The first study was undertaken to determine the feasibility of supplementing low protein diets with the two most commonly limiting amino acids in laying diets methionine and lysine. Individually caged incrossbred pullets were subjected to eight different treatments for twelve 28-day periods. A positive control diet containing 16.3% animal and plant protein, 2068 kcal./kg. productive energy, 0.778%, lysine and 0.536% methionine plus cystine, was compared to a negative control 14% plant protein diet formulated to contain 0.656% lysine, 0.460% methionine plus cystine and 2068 kcal./kg. productive energy. This diet was supplemented with 0.075% and 0.125% methionine; 0.050% and 0.100% lysine; 0.075% methionine plus 0.050% lysine and 0.125% methionine plus 0.100% lysine, respectively. Egg production, egg size and feed efficiency were approximately equal for the unsupplemented 14% protein and for this diet supplemented with either 0.075%, 0.125% methionine or 0.050%, 0.100% lysine. The combination of methionine plus lysine at the lower level significantly improved these economic traits and was greater than or equal to the response to the higher of both or to the positive control diet. The second study was undertaken to study the performance of commercial broilers. Fourteen diets containing either glandless cottonseed meal (GCSM), cottonseed meal (CSM), sesame meal (SM), soybean meal (SBM), or combination of these plant protein sources, with and without amino acid supplementation, (methionine and/or lysine) end in each case contributing the same total amount of crude protein, were compared to each other and to a positive animal and plant protein control diet. ...
Author: Guoyao Wu
Publisher: Springer Nature
ISBN: 3030544621
Category : Medical
Languages : en
Pages : 256
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Book Description
Amino acids (AAs) are not only building blocks of protein, but are also signalling molecules as well as regulators of gene expression and the protein phosphorylation cascade. Additionally, AAs are key precursors for syntheses of hormones and low-molecular weight nitrogenous substances with each having enormous biological importance. For example, physiological concentrations of AA metabolites (e.g., nitric oxide, polyamines, glutathione, taurine, thyroid hormones, and serotonin) are required for cell functions. Growing evidence shows that humans and animals have dietary requirements for all proteinogenic AAs. Mammals, birds and fish also have species- and age-dependent needs for some AA-related substances. However, elevated levels of other products (e.g., ammonia, homocysteine, H2S, and asymmetric dimethylarginine) are pathogenic factors for neurological disorders, oxidative stress, and cardiovascular disease. Thus, optimal amounts of AAs and their ratios in diets and circulation are crucial for whole body homeostasis and health. Adequate provision of one or a mixture of functional AAs or metabolites may be beneficial for ameliorating health problems at various stages of the life cycle (e.g., fetal growth restriction, neonatal morbidity and mortality, weaning-associated intestinal dysfunction and wasting syndrome, obesity, diabetes, cardiovascular disease, the metabolic syndrome, and infertility). Dietary supplementation of these nutrients can also optimize the efficiency of metabolic transformations to enhance muscle growth, milk production, and athletic performance, while preventing excess fat deposition and reducing adiposity. Therefore, functional AAs hold great promise in improving the growth, health and well-being of individuals. Chapter 7 is available open access under a Creative Commons Attribution 4.0 International License via link.springer.com.
Author: S. Leeson
Publisher: Nottingham University Press
ISBN: 190476178X
Category : Science
Languages : en
Pages : 413
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Book Description
Covering a variety of essential topics relating to commercial poultry nutrition and production—including feeding systems and poultry diets—this complete reference is ideal for professionals in the poultry-feed industries, veterinarians, nutritionists, and farm managers. Detailed and accessible, the guide analyzes commercial poultry production at a worldwide level and outlines the importance it holds for maintaining essential food supplies. With ingredient evaluations and diet formulations, the study's compressive models for feeding programs target a wide range of commercially prominent poultry, including laying hens, broiler chickens, turkeys, ducks, geese, and game birds, among others.
Author: C. L. Walk
Publisher: Brill Wageningen Academic
ISBN: 9789086862900
Category : Animal nutrition
Languages : en
Pages : 0
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Book Description
Incorporating research chapters from academic authors around the world, this book focuses on the most recent scientific advances in understanding phytate; both IP6 and its esters. It examines phytate degradation patterns in the gastrointestinal tract, and investigates the relevance of gut microbiome and endogenous phosphatases on phytate breakdown, as well as regulation and functions of inositol diphosphates IP3, IP4, and IP7, IP8. It also identifies recommendations for formulating for minerals and amino acids in the presence of phytate, including the effects of phytase on protein bioavailability, and the impact of digestible Ca and P in both swine and poultry. This leading science and research is coupled with real-world pragmatism, including a focus on what industry stakeholders are currently doing to counter dietary phytate, and an overview of the role of nutrition in respect of bone health, meat quality, welfare, and antibiotic free production. As such, the content is relevant for scientists, nutritionists and producers alike.
Author: J. P. Felix D'Mello
Publisher: Cabi
ISBN: 9780851996547
Category : Medical
Languages : en
Pages : 513
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Book Description
Amino acid metabolism and nutrition of farm animals continues to be an active area of research. However, since the publication of the first edition, as Amino Acids in Farm Animal Nutrition (1994), there is now a need to take into account advances in the amino acid nutrition of a wider range of animals, including companion animals. In this new edition, the editor has attempted to retain chapter imparting strength to the first version, while introducing authors with new ideas and vision, as well as chapters on other animals such as cats and dogs. The book is thematically structured. Part 1 includes chapter of an introductory and general nature with applications to a wide range of animal species. The next four parts are species-related sections, including pigs, poultry, ruminants and other animals. The chapters in the final section cover applications and perspectives. The book has been written as a reference work for advanced students as well as researchers in animal nutrition.
Author: Harald Volden
Publisher: Springer Science & Business Media
ISBN: 9086867189
Category : Science
Languages : en
Pages : 172
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Book Description
NorFor is a semi-mechanistic feed evaluation system for cattle, which is used by advisors in Denmark, Iceland, Norway and Sweden. This book describes in detail the system and it covers five main sections. The first is concerned with information on feed characteristics, feed analysis and feed digestion methods. The second section describes the digestion and metabolism in the gastrointestinal tract and the supply and requirement of energy and metabolizable amino acids. The third section considers the prediction of feed intake and physical structure of the diet. The fourth section focuses on model evaluation and the final section provides information on the IT solutions and feed ration formulation by a non-linear economical optimization procedure. This book will be of significant interest to researchers, students and advisors of cattle nutrition and feed evaluation.
Author: National Research Council
Publisher: National Academies Press
ISBN: 0309051266
Category : Science
Languages : en
Pages : 188
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Book Description
In the years since the third edition of this indispensable reference was published, a great deal has been learned about the nutritional requirements of common laboratory species: rat, mouse, guinea pig, hamster, gerbil, and vole. The Fourth Revised Edition presents the current expert understanding of the lipid, carbohydrate, protein, mineral, vitamin, and other nutritional needs of these animals. The extensive use of tables provides easy access to a wealth of comprehensive data and resource information. The volume also provides an expanded background discussion of general dietary considerations. In addition to a more user-friendly organization, new features in this edition include: A significantly expanded section on dietary requirements for rats, reporting substantial new findings. A new section on nutrients that are not required but that may produce beneficial results. New information on growth and reproductive performance among the most commonly used strains of rats and mice and on several hamster species. An expanded discussion of diet formulation and preparationâ€"including sample diets of both purified and natural ingredients. New information on mineral deficiency and toxicity, including warning signs. This authoritative resource will be important to researchers, laboratory technicians, and manufacturers of laboratory animal feed.
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages :
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Book Description
Liquid diets provide a useful tool for producers with low birth weight pigs, as these pigs are at a disadvantage compared to larger littermates. There is limited use of milk replacers on commercial farms due to the high cost of protein sources. A way to potentially reduce the cost of liquid diets is to replace protein sources with synthetic amino acids (AA). Experiment 1 was designed to determine the amount of synthetic lysine (SL) that could replace lysine from protein and maintain performance similar to pigs fed a diet containing no SL. Pigs (1.62"0.20 kg) were randomly allotted to diets which replaced 0 to 40% of lysine from protein with SL, while maintaining similar GE and total lysine. Diets were fed on a restricted basis (n=4D iet) in order to reduce intake differences. An additional group was fed the 0% SL replacement diet ad libitum (AL, n=5) to determine intake level. Intake for restricted pigs was restricted to 80% of AL and adjusted on a daily basis. Pigs fed AL had greater (P 0.01) ADG, ADFI, G:F, water, CP, fat, and ash accretion than restricted fed pigs. Gain, G:F, water, CP, and ash accretion decreased (P
Author: Anthony Albanese
Publisher: Elsevier
ISBN: 0323144454
Category : Technology & Engineering
Languages : en
Pages : 617
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Book Description
Protein and Amino Acid Nutrition describes the state of knowledge concerning the nutrition of proteins and amino acids. Topics range from the effect of some therapeutic agents on protein and amino acid nutrition, to species and age differences in amino acid requirements; utilization of D-amino acids; effect of proteins and amino acids on the growth of adult tissue in vitro; and amino acid requirements of animals and young adults. This volume is organized into 16 chapters and begins with an overview of the nutritional implications of the metabolic interrelationships of amino acids. The next chapters discuss experiments that tested the differences in amino acid requirements due to the differences in age and in species among animals, the biochemical individuality of amino acid requirements, and the utilization of dietary proteins. This book explains the synthesis of tissue proteins in relation to the essential amino acids; the link between food energy and nitrogen metabolism; and the use of the repletion method to measure the nutritive value of proteins, protein hydrolyzates, and amino acid mixtures. The final chapter discusses the nutritional needs of the older age groups. This book is intended for scientists, students, and researchers interested in human and animal nutrition.
