Nitrogen metabolism and excretion



Publisher: CRC Press in Boca Raton, Fla

Written in English
Cover of: Nitrogen metabolism and excretion |
Published: Pages: 337 Downloads: 644
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Subjects:

  • Nitrogen excretion.,
  • Nitrogen -- Metabolism.,
  • Physiology, Comparative.

Edition Notes

Includes bibliographical references and index.

Statementeditors, Patrick J. Walsh, Patricia Wright.
ContributionsWalsh, Patrick J., Ph. D., Wright, Patricia
Classifications
LC ClassificationsQP211 .N58 1995
The Physical Object
Pagination337 p. :
Number of Pages337
ID Numbers
Open LibraryOL1120033M
ISBN 100849384117
LC Control Number94046469

Metabolism - Metabolism - Disposal of nitrogen: In animals that excrete ammonia as the main nitrogenous waste product (e.g., some marine invertebrates, crustaceans), it is derived from nitrogen transfer reactions [26] and oxidation via glutamate dehydrogenase [28] as described above for microorganisms. Because ammonia is toxic to cells, however, it is detoxified as it forms. Important excretory function is performed by liver, removing the blood hormones, cleavage products of hemoglobin, nitrogen metabolism and many other substances from blood. Pancreas and intestinal glands excrete heavy metals, drugs. However, the main role in the excretion belongs to the specialized organs – kidneys. The metabolism and excretion of ziprasidone (5-[2-[4-(1,2-benzisothiazolyl)piperazinyl]ethyl]++ +chloroindolinone hydrochloride hydrate) were studied in Long Evans rats after oral administration of a single dose of a mixture of 14C- and 3H-labeled ziprasidone. The radioactive dose was qu . Determination of rumen microbial-nitrogen production in sheep: a comparison of urinary purine excretion with methods using 15N and purine bases as markers of microbial-nitrogen entering the duodenum. British Journal of Nutrition, Vol. 75, Issue. 5, p.

  There are, for example, chapters covering protein synthesis, amino acid metabolism, and nitrogen compounds as osmolytes, so a better title for the book might have been Protein Metabolism and Nitrogen Excretion or Nitrogen Metabolism, Retention and Excretion in Fish. A model of blood-ammonia homeostasis based on a quantitative analysis of nitrogen metabolism in the multiple organs involved in the production, catabolism, and excretion of ammonia in humans Clin Exp Gastroenterol. May 24; doi: /CEG.S IN DISORDERS that cause chronic metabolic acidosis, protein degradation in skeletal muscle is accelerated (1– 3), increasing the production of nitrogen (N) end products that are eliminated in the urine, thereby inducing negative N balance ().This disturbance of N metabolism apparently results directly from the acidosis, not from its cause or from other sequelae of the underlying acidosis. Our results suggest that the main elimination pathway in mice is oxidative metabolism at a methyl group and a 1,2,3-trisubstituted benzene ring followed by biliary and fecal excretion. Following oral administration of 14 C-amenamevir to mice, % of the dose (% in urine and % in feces) was excreted by 96 h post-dose.

Nitrogen metabolism and excretion Download PDF EPUB FB2

The book features chapters on the latest developments in nitrogen metabolism and excretion from 28 prominent researchers from all over the world.

Each chapter is detailed and specific, filled with useful concepts and techniques. The scope of the book is broad and diverse, covering groups from invertebrates to mammals, and subjects from nitrogen Cited by: Book Description Although the basic evolutionary patterns of nitrogen metabolism and excretion have been outlined for decades, there has been a resurgence of research activity in the past 15 years.

Research in nitrogen metabolism has been stimulated in the area of acid-base balance. The book features chapters on the latest developments in nitrogen metabolism and excretion from 28 prominent researchers from all over the world. Each chapter is detailed and specific, filled with useful concepts and techniques.5/5(1).

Nitrogen Metabolism, Excretion, Osmoregulation, and Cell Volume Regulation in Elasmobranchs / Leon Goldstein and Deborah F. Perlman --Ch. Nitrogen Excretion in Terrestrial Crustaceans / Michael J.

O'Donnell and Jonathan C. Wright --Ch. Nitrogen Metabolism and Excretion in Locusts / Jon F. Harrison --Ch. Nitrogen Metabolism and Excretion in the Human Body. This book provides a comprehensive collection of timely reviews of our current understanding of the fundamental principles of nitrogen metabolism and excretion in fish.

Emphasis is placed on critical assessment of how new studies impact these topics, and the articles reflect the diversity of current research approaches. Search in this book series. Nitrogen Excretion. Patricia Wright and Paul Anderson.

Vol Pages () Download full volume. Previous volume. Influence of feeding, exercise, and temperature on nitrogen metabolism and excretion. Chris M. Wood. In this chapter, up-to-date information on nitrogen metabolism and excretion in various aestivators is presented.

Low protein diets reduce nitrogen excretion without affecting pig performance and carcass traits Previous Next > Energy and protein metabolism and nutrition e-book - Energy and protein metabolism and nutrition () - ISBN.

Nitrogen metabolism and excretion during early life stages in fish is not simply a replica of adult patterns on a smaller scale. There are three key differences. There are three key differences. First, embryos feed endogenously, rapidly consuming yolk amino acids and proteins to provide fuel for growth and development.

Microbial nitrogen production in growing heifers: direct measurement of duodenal flow of purine bases versus urinary excretion of purine derivatives as estimation procedures. Animal Feed Science and Technology, Vol.

88, Issue. p. Cited by:   Analyses of ingestion and excretion of nitrogen by larvae of the lepidopteran Mamestra brassicae, an agricultural pest, have shown that high levels of nitrogen in host plants (e.g., after fertilizer application) enhances N metabolism in the larvae and leads to increased excretion of NH 4 + (Kagata and Ohgushi ).

This study aimed to determine effects of 6‐day progressive increase in salinity from 1‰ to 15‰ on nitrogen metabolism and excretion in the soft‐shelled turtle, Pelodiscus turtles exposed to 15‰ water on day 6, the plasma osmolality and concentrations of Na +, Cl − and urea increased significantly, which presumably decreased the osmotic loss of water.

In these animals, nitrogen excreted predominantly in the form of urea, e.g. mammals, amphibians, and elasmobranchs. Among fishes, both ammonotelic and ureotelic metabolism are present.

Uricotelic Animals are described as being uricotelic when nitrogen is excreted predominantly in the form of uric acid, e.g. birds, insects, lizards, snakes, and.

Fish Physiology: Nitrogen Excretion (ISSN Book 20) - Kindle edition by Anderson, Paul, Wright, Patricia. Download it once and read it on your Kindle device, PC, phones or tablets.

Use features like bookmarks, note taking and highlighting while reading Fish Physiology: Nitrogen Excretion (ISSN Book.

Nitrogen Excretion provides new insights into ammonia and urea transport, the role of nitrogen metabolism in osmoregulation, ammonia toxicity, the evolution and expression of the urea cycle, environmental influences on protein synthesis, amino acid metabolism, nutrition, and the role of urea synthesis in embryonic development.

This volume is a. P.A. Wright, in Encyclopedia of Fish Physiology, Early Life Stages. Nitrogen metabolism and excretion during early life stages in fish is not simply a replica of adult patterns on a smaller scale.

There are three key differences. First, embryos feed endogenously, rapidly consuming yolk amino acids and proteins to provide fuel for growth and development. Request PDF | Nitrogen Excretion and Metabolism in Insects | Different species of insects excrete multiple forms of nitrogenous waste, including.

Nitrogen metabolism and route of excretion in beef feedlot cattle fed barley-based finishing diets varying in protein concentration and rumen degradability J Anim Sci. May;91(5) doi: /jas   In this volume, seven of the chapters deal with feeding and diet, which is reasonable since insects consume an estimated l% of all the world's planted crops.

Many insects even have a specialized larval feeding stage that usually occupies a different ecological niche to the adult and so does not compete for the adult's food stock. Other chapters describe the means by which insects maintain.

The function termed ‘excretion’ includes all the processes of removing the waste products derived from the cellular metabolism. It is a process essential at all levels of living systems.

Nitrogen fixation. Nitrification and denitrification. The incorporation of fixed nitrogen into organic compounds. The synthesis and catabolism of purine and pyrimidine nucleotides. Deamination of amino acids.

Excretion of nitrogenous waste. Other nitrogenous compounds in human urine. Further reading. The leaves excess nitrogen which ends up mostly as urea for excretion. Urea is a very water soluble, nontoxic molecule that biochemists use in the lab to chemically denature protein (at concentrations of 3.

Home > EAAP Scientific Series > Energy and protein metabolism and nutrition > Low CP diet with synchrony of ruminal nitrogen and energy decreased nitrogen excretion in dairy cow. This study evaluated the effects of oral sodium bicarbonate (NaHCO3) supplementation on ammonium (NH4+) nitrogen (N) and urea N excretion and on ketone bodies during the metabolic acidosis of a very low energy protein diet.

Ten healthy obese female subjects (BMI, +/- kg/m2;weight, +/- 4. General overview of nitrogen metabolism and excretion in animals. The three main nitrogen excretory products are highlighted in boxes.

Nitrog en e xcretion by glutamate dehydrogenase (GDH). Transdeamination is the term given to this two-step process. Ammonia can also be. The result of limited synthesis and normal rates of protein degradation is that the balance of nitrogen intake and nitrogen excretion is rapidly and significantly altered.

Normal, healthy adults are generally in nitrogen balance, with intake and excretion being very well matched. Branched-Chain Amino Acid Metabolism: Neuronal Nitrogen. This process is used for the excretion of the nitrogen, and the carbon skeleton is used to produce energy.

Again, vitamin B 6 is needed for this process. The nitrogen removed from amino acids is excreted via several different routes. The most familiar path is urine where most of the nitrogen is. Ammonia is the waste produced by metabolism of nitrogen-containing compounds like proteins and nucleic acids.

While aquatic animals can easily excrete ammonia into their watery surroundings, terrestrial animals have evolved special mechanisms to eliminate the toxic ammonia from their systems. Nitrogen metabolism and route of excretion in beef feedlot cattle fed barley-based finishing diets varying in protein concentration and rumen degradability.

J Anim Sci. ; 91(5) (ISSN: ) Koenig KM; Beauchemin KA. b. Nitrogen metabolism proceeds as anabolism and catabolism at the same time in animals, but nitrogen catabolism does not occur in plants until they die c.

Nitrogen metabolism proceeds as anabolism and catabolism at the same time in chlorophyll, but nitrogen anabolism does not occur in animals until they die d.Nitrogen is vital for life and a very important nutrient.

Overall, the results show that n-3 FA enrichment diet had a significant impact on nitrogen metabolism. The addition of LE:WM mixture reduced nitrogen excreted and net protein utilization.

More than 40% of nitrogen was retained which led to a higher efficiency of nitrogen utilization.At a field site in Belize, mangrove killifish Rivulus marmoratus inhabit hypersaline waters (up to 48 ‰) containing approximately 1 mmol l–1 ammonia.

We tested the hypotheses that R. marmoratus modify their nitrogen metabolism and excretion (i) by accumulating free amino acids (FAAs) and urea in the tissues during hyperosmotic stress and (ii) by shifting to ureotelism and accumulating FAAs.