Download or read book Rumen protected Lysine in Dairy Cows Bioavailability and Effects written by and published by . This book was released on 2016 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: The first trial's objective was assessing bioavailability of an experimental formulation (EEL) for a commercial rumen protected (RP) Lys product (ASL). Abomasal infusion was used to develop a response curve relating bioavailability to plasma Lys concentration. Infusion linearly increased plasma Lys, but did not affect milk production or composition. Feeding ASL or EEL had no consistent effects and EEL bioavailability was not better than ASL. The second experiment was an iteration, with improvements learned from the first trial, aimed at determining ASL bioavailability. Plasma Lys increased with infusion in 7 out of 10 cows. Half of the cows responded to feeding ASL with increased plasma Lys. No effects of treatments, neither in milk yield nor composition, were observed. Estimated bioavailability was 28% by dose-response method and 22% by slope-ratio approach. The third trial tested production effects and N use efficiency of supplementing a low (14.5%) CP diet, containing soybean meal (SBM) and distillers grains (DDGS), with RP Met (RPM) and RP Lys (RPL); a positive control (16.8% CP) was included. High CP diet showed higher intake, milk yield and MUN, but lowest apparent N efficiency. No RPM main effects were observed; however, RPM*RPL interaction for milk yield was significant because RPM increased 1.2 kg milk/d but milk was not altered by RPM+RPL. Feeding RPM, but not RPL, increased milk yield/DMI on low CP diets containing SBM plus DDGS. The fourth trial aimed to determine if RPL supplementation improved nutritive value of RUP from corn protein. Diets contained alfalfa and corn silage; half or all CP from solvent SBM (SSBM) and expeller SBM (ESBM) were replaced by CP from corn (corn gluten meal and DDGS), while keeping RDP, RUP and metabolizable protein approximately constant. One all corn CP diet was RPL supplemented (20 g/d absorbed Lys). Intake was highest on SSBM+ESBM diet, intermediate on blended diet and lowest on the corn diets. Milk, milk protein yield, and feed efficiency were lowest in all corn CP diet without RPL; RPL supplementation increased 1.1 kg milk/d and 50 g protein/d. Dilution of SBM RUP with corn protein did not reduce milk yield.
Download or read book Evaluating the Bioavailability of Rumen Protected Methionine Products and Their Effects on Performance of Dairy Cows written by Merrick Smith and published by . This book was released on 2021 with total page 95 pages. Available in PDF, EPUB and Kindle. Book excerpt: Two experiments were conducted to evaluate the performance of KESSENT M (RPM-K; Kemin Industries, Des Moines, IA, USA) to commercially available products by examining plasma methionine response and effect on animal performance in Holstein dairy cows.
Download or read book Biotechnology in Animal Feeds and Animal Feeding written by R. John Wallace and published by John Wiley & Sons. This book was released on 2008-07-11 with total page 368 pages. Available in PDF, EPUB and Kindle. Book excerpt: With the dramatically rising sophistication of biological methods and products and the increasing use of recombinant DNA technology, now is an apt time to review the status of biotechnology in animal feeding. This book gives succinct yet comprehensive coverage of products of biotechnology and allied sciences used in animal feed and feeding industries. Particular emphasis is placed on: - Conservation and upgrading of feeds and feed components - Increasing the protein value of feeds - Antimicrobials - Microbial feed additives - Increasing the energy value of feeds. Moreover, increasing environmental concerns are reflected in chapters describing dietary products which may help to reduce environmental hazards from animal feeding enterprises. A discussion of social and legislative aspects relating to biotechnology and animal feeding rounds off this useful compilation of timely articles.
Download or read book Seed Proteins written by Peter R. Shewry and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 892 pages. Available in PDF, EPUB and Kindle. Book excerpt: Seeds provide more than half of the world's intake of dietary protein and energy and thus are of immense economic, cultural and nutritional importance. Proteins can account for up to 40% of the dry weight of various types of seeds, thereby making a large contribution to the nutritional quality and processing properties of seeds. It is, therefore, not surprising that seed proteins were among the first plant components to be systematically studied, some 250 years ago, and have been a major focus of research over the past 100 years. The properties and behaviour of seed proteins pervade modem life in numerous ways. For example, legume and cereal proteins are used'in the production of a wide range of meat-free foods; the process of bread-making is dep~ndent on the physical chemical properties of wheat seed proteins; and in developed, as well as developing, countries, nutritional deficiencies among vegetarian diets are avoided through balancing legume and cereal seeds as sources of dietary proteins. Understanding seed proteins, in order to improve their composition and properties and to increase their concentrations, will thus continue to be an important research objective for the future. The present volume represents the culmination of a long-discussed plan of the editors, to bring together the best international authorities in order to compile a definitive monograph on biological, biochemical, molecular and genetic aspects of seed proteins.
Download or read book Effect of Rumen protected Methionine and Lysine on Casein in Milk when Diets High in Fat Or Concentrate are Fed written by Jo May Chow and published by . This book was released on 1989 with total page 146 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Urea as a Protein Supplement written by Michael H. Briggs and published by Pergamon. This book was released on 1967 with total page 492 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Effect of Liquid Rumen protected Lysine Supplementation on Lactation Performance of Holstein Cows written by Richardt Venter and published by . This book was released on 2013 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Thirty high-producing multiparous Holstein cows were used in a completely randomized block design to compare a lysine deficient total mixed ration, which was sufficient in methionine, to the same diet supplemented with a rumen protected lysine product. The CPM-Dairy prediction model was used to estimate the nutrient requirements and adequacy or deficiency of amino acids. During the 21-day prepartum transition period, cows were fed 4 kg (dry basis) of the lysine deficient diet plus Eragrostis curvula hay ad lib. After calving, cows were fed the lysine deficient diet for the first three weeks and were then blocked according to the average production from day 19-21. Fifteen cows were allocated to each treatment and blocked into 15 groups of two each. Data on production parameters were analyzed for all cows and also separately for cows in the 10 highest production blocks. The experimental period was from day 22 to 120 postpartum. Lysine supplementation resulted in an optimal dietary lysine : methionine ratio in metabolisable protein of 7.2 : 2.4. Lysine supplementation did not affect dry matter intake, milk production, milk fat percentage, milk protein percentage, milk urea nitrogen, body weight or body condition score: but decreased the non-casein nitrogen and whey content of milk. Furthermore, milk casein, which is the milk nitrogen fraction most sensitive towards increased duodenal supply of lysine and methionine, was not affected. The rumen protected lysine product evaluated did not improve cow productivity, probably because the product was either unprotected from rumen degradation, or overprotected to the extent that the lysine was not available for absorption in the small intestine: or absorbed but could not be metabolised. Copyright.
Download or read book Nitrogen and Phosphorus Nutrition of Cattle written by Alexander N. Hristov and published by CABI Publishing. This book was released on 2005 with total page 288 pages. Available in PDF, EPUB and Kindle. Book excerpt: Interactions between Cattle and the Environment: a General Introduction; Nitrogen Requirements of Cattle; Nitrogen Metabolism in the RUlDen; Factors Affecting the Efficiency of Nitrogen Utilization in the RUlDen; Whole-anilnal Nitrogen Balance in Cattle Phosphorus Metabolism in the RUlDen; Phosphorus Metabolism in Rwninants and Requirements of Cattle; Etfects ofDietary Phosphorus and Nitrogen on Cattle Reproduction; lnproving the EfficielicY cifNutrient Use on Cattle Operations.
Download or read book Nutrient Requirements of Dairy Cattle written by National Research Council and published by National Academies Press. This book was released on 2001-02-09 with total page 406 pages. Available in PDF, EPUB and Kindle. Book excerpt: This widely used reference has been updated and revamped to reflect the changing face of the dairy industry. New features allow users to pinpoint nutrient requirements more accurately for individual animals. The committee also provides guidance on how nutrient analysis of feed ingredients, insights into nutrient utilization by the animal, and formulation of diets to reduce environmental impacts can be applied to productive management decisions. The book includes a user-friendly computer program on a compact disk, accompanied by extensive context-sensitive "Help" options, to simulate the dynamic state of animals. The committee addresses important issues unique to dairy science-the dry or transition cow, udder edema, milk fever, low-fat milk, calf dehydration, and more. The also volume covers dry matter intake, including how to predict feed intake. It addresses the management of lactating dairy cows, utilization of fat in calf and lactation diets, and calf and heifer replacement nutrition. In addition, the many useful tables include updated nutrient composition for commonly used feedstuffs.
Download or read book NorFor written by Harald Volden and published by Springer Science & Business Media. This book was released on 2011-10-05 with total page 172 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
Download or read book Response of Lactating Holstein Cows to Different Dietary Protein Concentrations and Sources and Rumen protected Methionine and Lysine written by Bernard Guillaume and published by . This book was released on 1989 with total page 306 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Effect of Liquid Rumen protected Lysine Supplementation on the Lactation Performance of Holstein Cows written by Richardt Venter and published by . This book was released on 2008 with total page 244 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Effects of Rumen Protected Lysine and Methionine on Ruminants Performance and Nutrient Metabolism written by Benjamin Olukayode Oke and published by . This book was released on 1984 with total page 130 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Effect of Methionine Supplementation on Productive Performance of Dairy Cattle written by Claudia Leonardi and published by . This book was released on 2001 with total page 156 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Ruminant Nutrition written by Robert Jarrige and published by John Libbey Eurotext. This book was released on 1989 with total page 400 pages. Available in PDF, EPUB and Kindle. Book excerpt: Deals with feed evaluation systems, the nutrient requirements of ruminant livestock and the feeding value of a wide range of feedstuffs. This book lists about 800 typical forages, 65 crop residues and 120 concentrate and by-product feeds. It is suitable for teachers, specialist scientists and industrialists.
Download or read book Response of Rumen Protected Methionine and Lysine Supplementation on Lactation and Reproductive Performance in Periparturient Dairy Cows written by Amrutkar Suhas Ashokrao and published by . This book was released on 2012 with total page 172 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Recent Developments in Ruminant Nutrition written by W Haresign and published by Elsevier. This book was released on 2013-10-22 with total page 378 pages. Available in PDF, EPUB and Kindle. Book excerpt: Recent Developments in Ruminant Nutrition presents papers that discuss the advancement of the different areas of ruminant nutrition. The book is comprised of 20 chapters that cover topics, such as reproduction, diet, and nutrition. The coverage of the text includes growth stimulation in ruminants; protein quantity and quality for the U.K. dairy cow; and complete-diet feeding of dairy cows. The book also covers rumen fermentation related topics, such as influence of nitrogen and carbohydrate inputs on rumen fermentation; aspects of the biochemistry of rumen fermentation and their implication in ruminant productivity; and manipulation of rumen fermentation. The text will be of great use to researchers and professionals in the animal husbandry industry.
