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Author : Philip John Eppard
Publisher :
ISBN 13 :
Total Pages : 366 pages
Book Rating : 4.E/5 ( download)
Download or read book Effect of Exogenous Somatotropin on Nutrient Partitioning of Lactating Dairy Cows written by Philip John Eppard and published by . This book was released on 1985 with total page 366 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Jeannine M. Kenney
Publisher :
ISBN 13 :
Total Pages : 40 pages
Book Rating : 4.:/5 (31 download)
Download or read book Bovine Somatotropin (bST) written by Jeannine M. Kenney and published by . This book was released on 1987 with total page 40 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Phillip Sheldon Miller
Publisher :
ISBN 13 :
Total Pages : 358 pages
Book Rating : 4.:/5 (42 download)
Download or read book Nutrient Partitioning in the Lactating Dairy Cow written by Phillip Sheldon Miller and published by . This book was released on 1990 with total page 358 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : National Research Council
Publisher : National Academies
ISBN 13 : 0309049970
Total Pages : 94 pages
Book Rating : 4.3/5 (9 download)
Download or read book Metabolic Modifiers written by National Research Council and published by National Academies. This book was released on 1994-02-01 with total page 94 pages. Available in PDF, EPUB and Kindle. Book excerpt: In the past decade, animal scientists have learned that administering recombinantly derived somatotropin (growth hormone) to cows improves milk production and that giving beta-adrenergic agonists to meat animals improves productivity and leanness. In order for these metabolic modifiers to yield benefits, however, sound management of the animals' nutrition is necessary. This volume reports on how these substances work in the animals' metabolism, what effects they might have on nutrient requirements of domestic livestock, and what information should be developed further by investigators. The book explores the current understanding of the biology, structure, mechanisms of action, and treatment effects of somatotropin, beta-adrenergic agonists, and anabolic steroids. A companion volume to the Nutrient Requirements of Domestic Animals series, this authoritative volume will be required reading for animal scientists, researchers, veterinarians, livestock farmers, and faculty and students in university animal veterinary science programs.
Author : Natalie A. Kik
Publisher :
ISBN 13 :
Total Pages : 244 pages
Book Rating : 4.3/5 (129 download)
Download or read book The Effects of Bovine Somatotropin, Iso-Plus and a Combination of the Two in Early Lactating Holsteins written by Natalie A. Kik and published by . This book was released on 1987 with total page 244 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : National Research Council
Publisher : National Academies Press
ISBN 13 : 0309037956
Total Pages : 384 pages
Book Rating : 4.3/5 (9 download)
Download or read book Designing Foods written by National Research Council and published by National Academies Press. This book was released on 1988-02-01 with total page 384 pages. Available in PDF, EPUB and Kindle. Book excerpt: This lively book examines recent trends in animal product consumption and diet; reviews industry efforts, policies, and programs aimed at improving the nutritional attributes of animal products; and offers suggestions for further research. In addition, the volume reviews dietary and health recommendations from major health organizations and notes specific target levels for nutrients.
Author : R.L. Baldwin
Publisher : Springer Science & Business Media
ISBN 13 : 9780412591600
Total Pages : 600 pages
Book Rating : 4.5/5 (916 download)
Download or read book Modeling Ruminant Digestion and Metabolism written by R.L. Baldwin and published by Springer Science & Business Media. This book was released on 1995-05-31 with total page 600 pages. Available in PDF, EPUB and Kindle. Book excerpt: Role of mminants in human food production; Whyan animal scientist would choose to model animal systems; Basic organization of this book; Modeling principIes and terminology; Classification of models; Objectives in modeling; The modeling process I objective statements, block diagrams, equation forms and parameterization; Steps in modeling; Setting the modeling objective; Block diagrams; Formulation of mathematical statements; Development of numerical inputs; The modeling process II - solution algorithms, model evaluations and parameter estimation; Model solution algorithms; Evaluation of management and research models; Evaluation and use of analytical models for parameter estimation; Decision support software; Animal energetic models; Thermodynamic concepts in nutrition; Historical development of bases for feeding system models; Energy requirements for maintenance and production; Equations used to estimate maintenance and costs of production; Components of maintenanace; Protein and amino acid models; Current protein and amino acid systems; Analytic models of amino aicd and protein metabolism; Dynamic modeling; Biology and algebraic models of ruminant digestion; The rumen microbes and their metabolism; Balance models of ruminant digestion; An analytical model of rumen digestion; Microbial growth elements; Biology and algebraic models of growth; Classical equations for growth; Nutritional models of growth; Concepts of lhe basic biology of growth used in mechanistic models; Biology of lactation; Decent evolution of feeding systems for lactating dairy cattle; An analytical model of nutrient transactions during lactation; Dynamic models of ruminant digestion; Early dynamic models; Current dynamic models; Dynamic models of ruminant adipose tissue metabolism; Evolution of steady-state balance model; Radioisotope tracer elemets; Dynamic models of ruminant mammary metabolism; Development of model inputs and initial parameters; Descriptions of a model of mammary gland metabolism; Dynamic models of liver and viscera metabolism; Overall structure and notation; Mechanistic, dynamic models of growth; Beef growth models; Sheep growth and metabolism model; Lactation Background on MOLL Y. CSL; The program MOLL Y. CSL; Evaluation and use of a growth and lactation model; Behavioral analyses; Sensitivity analyses; Bioeconomic analyse.
Author : Laurie Ann Winkelman
Publisher :
ISBN 13 :
Total Pages : 238 pages
Book Rating : 4.:/5 (696 download)
Download or read book Nutritional Modulation of the Somatotropic Axis During the Transition Period of Dairy Cattle written by Laurie Ann Winkelman and published by . This book was released on 2006 with total page 238 pages. Available in PDF, EPUB and Kindle. Book excerpt: Abstract: The somatotropic axis is a critical endocrine system for partitioning nutrients toward lactation during the transition period. Growth hormone receptor (GHR) 1A is down regulated in the liver of the dairy cow after calving, causing an uncoupling of the somatotropic axis that leads to increased plasma growth hormone (GH) and reduced circulating insulin-like growth factor-I (IGF-I). Other mechanisms responsible for uncoupling the somatotropic axis have not been examined in the liver of transition dairy cows. This includes the presence of suppressors of cytokine signaling (SOCS) that inhibit post-receptor signaling. The objective of this study was to influence components of the somatotropic axis and its signaling cascade to improve IGF-I and insulin status of transition dairy cows through a diet designed to improve postpartum energy balance (EB). Approximately 45 days before expected calving date, multiparous Holstein cows were dried off and fed either a restricted (R, 9.4 kg DM/d; n 9) or ad libitum (AL, n = 9) diet that was balanced for energy requirements. The R diet was designed for the cows to maintain a more stable DMI and EB before calving. After calving, all cows were fed the same lactation ration. Blood samples were collected weekly beginning at dry-off, with more intensive sampling near parturition, and sampling continued until day 28 after calving. Liver biopsies were collected on days -21, -7, 2, and 28 relative to calving. Prepartum dietary treatment had no effect on postpartum dry matter intake (DMI) or EB. Plasma glucose, non-esterified fatty acids (NEFA), insulin, and IGF-I were not affected by dietary treatment either before or after calving, but there was an interaction between treatment and time for postpartum EB and plasma IGF-I. The R cows had higher plasma IGF-I concentrations on days 4 and 7 of lactation, coinciding with higher EB on days 2, 4 and 6. Relative steady state concentrations of SOCS-2 mRNA increased on day 2 of lactation for all cows and the increase was greater for R than AL cows. Changes in SOCS-2 mRNA coincided with increased plasma concentrations of estradiol-17[beta] near parturition. Liver GHR 1A mRNA relative abundance tended to decrease by 70 percent between day -7 and +2 relative to calving. We conclude that SOCS-2 is expressed in dairy cow liver and SOCS-2 mRNA expression is upregulated after calving. Liver SOCS-2 and reduced GHR 1A may work together after parturition, causing uncoupling of the somatotropic axis. The relationship between EB, SOCS-2, and GH signaling warrants further investigation.
Author : C.H. Knight
Publisher : Springer Science & Business Media
ISBN 13 : 146151973X
Total Pages : 296 pages
Book Rating : 4.4/5 (615 download)
Download or read book Intercellular Signalling in the Mammary Gland written by C.H. Knight and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 296 pages. Available in PDF, EPUB and Kindle. Book excerpt: All being done, we went to Mrs Shipmans, who is a great butter-woman; and I did see there the most of milke and cream, and the cleanest, that I ever saw in my life (29 May 1661). Among others, Sir Wm. Petty did tell me that in good earnest, he hath in his will left such parts of his estate to him that could invent such and such things -as among others, that could discover truly the way of milk coming into the breasts of a woman ... (22 March 1665). My wife tells me that she hears that my poor aunt James hath had her breast cut off here in tow- her breast having long been out of order (5 May 1665). From the Diary of Samuel Pepys, published as The Shorter Pepys (edited by R. Latham), Penguin Books (1987) The long-standing ultimate importance of research on the mammary gland is illustrated by the importance attached to cows' milk for human consumption, to human lactation and to breast cancer by Samuel Pepys and his contemporaries in the middle of the 17th century. Research has tended to develop in isolation in these three areas of continuing contemporary importance largely because in most countries, the underlying science of agricultural productivity is funded separately from the underlying science of human health and welfare.
Author : Pierre Cronjé
Publisher : CABI
ISBN 13 : 9780851997124
Total Pages : 492 pages
Book Rating : 4.9/5 (971 download)
Download or read book Ruminant Physiology written by Pierre Cronjé and published by CABI. This book was released on 2000 with total page 492 pages. Available in PDF, EPUB and Kindle. Book excerpt: The International Symposium on Ruminant Physiology (ISRP) is the premier forum for presentation and discussion of advances in knowledge of the physiology of ruminant animals. This book brings together edited versions of the keynote review papers presented at the symposium.
Author : R. J. Collier
Publisher : John Wiley & Sons
ISBN 13 : 0813811767
Total Pages : 360 pages
Book Rating : 4.8/5 (138 download)
Download or read book Environmental Physiology of Livestock written by R. J. Collier and published by John Wiley & Sons. This book was released on 2012-02-07 with total page 360 pages. Available in PDF, EPUB and Kindle. Book excerpt: Environmental stress is one of the most significant factors affecting livestock performance and health, and it is only expected to increase with effects of global warming. Environmental Physiology of Livestock brings together the latest research on environmental physiology, summarizing progress in the field and providing directions for future research. Recent developments in estimating heat stress loads are discussed, as well as key studies in metabolism, reproduction, and genetic expressions. Environmental Physiology of Livestock begins with a survey of current heat indexing tools, highlighting recent discoveries in animal physiology, changes in productivity levels, and new technologies available to better estimate stress response. Using this synopsis as a point of orientation, later chapters hone in on major effects of heat stress, including changing metabolic pathways and nutrient requirements, endocrine regulation of acclimation to environmental stress, and reduced reproductive performance. The text concludes with a thorough discussion of environmental effects on gene expressions, providing important insight for future breeding practices. Environmental Physiology of Livestock is a globally contributed volume and a key resource for animal science researchers, geneticists, and breeders.
Author :
Publisher :
ISBN 13 :
Total Pages : 108 pages
Book Rating : 4.:/5 ( download)
Download or read book Review of Regionalism as an Issue in the U.S. Dairy Industry: Background papers, December 1987 written by and published by . This book was released on 1988 with total page 108 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Dennis R. Campion
Publisher : Springer Science & Business Media
ISBN 13 : 1468488724
Total Pages : 413 pages
Book Rating : 4.4/5 (684 download)
Download or read book Animal Growth Regulation written by Dennis R. Campion and published by Springer Science & Business Media. This book was released on 2013-11-11 with total page 413 pages. Available in PDF, EPUB and Kindle. Book excerpt: The biotechnological advances of recent years have put us on the brink of unprecedented gains in animal productivity. Manipulation of animal growth rate and composition of gain is now possible by a variety of techniques. Ex amples include ingestion of beta-adrenergic agonists, injection of somatotropin, castration, immunization, and gene insertion. Animal Growth Regulation ad dresses modem concepts of growth regulation with an emphasis on agricul turally important animals. This emphasis is not exclusive, as many situations exist in which the only information available was generated in other species, and this information has been included for the sake of clarity and completeness. However, because of the overall orientation of this volume, particular attention has been given to the regulation of skeletal muscle, adipose tissue, and bone growth. Certain hormones and growth factors have a profound influence on growth regulation and this basic physiological knowledge is being harnessed to maniplilate growth. Thus, considerable emphasis has been given to growth hor mone-somatomedinlinsulinlike growth factor regulation of cell and tissue growth. The involvement of peptides coded by protooncogenes and of negative growth regulators, such as transforming growth factor-l3, represents an emerging area of molecular biology wherein basic knowledge offers potential exploitation for growth manipulation. Opportunities also exist for regulation of protein turn over, especially from the standpoint of protein degradation. Therefore, a place was reserved for these topics in order to provide relevant basic knowledge.
Author : Richard M. Hopper
Publisher : John Wiley & Sons
ISBN 13 : 1118470850
Total Pages : 2206 pages
Book Rating : 4.1/5 (184 download)
Download or read book Bovine Reproduction written by Richard M. Hopper and published by John Wiley & Sons. This book was released on 2014-08-18 with total page 2206 pages. Available in PDF, EPUB and Kindle. Book excerpt: Bovine Reproduction is a comprehensive, current reference providing information on all aspects of reproduction in the bull and cow. Offering fundamental knowledge on evaluating and restoring fertility in the bovine patient, the book also places information in the context of herd health where appropriate for a truly global view of bovine theriogenology. Printed in full color throughout, the book includes 83 chapters and more than 550 images, making it the most exhaustive reference available on this topic. Each section covers anatomy and physiology, breeding management, and reproductive surgery, as well as obstetrics and pregnancy wastage in the cow. Bovine Reproduction is a welcome resource for bovine practitioners, theriogenologists, and animal scientists, as well as veterinary students and residents with an interest in the cow.
Author : Monica Reynolds
Publisher : University of Pennsylvania Press
ISBN 13 : 1512806056
Total Pages : 284 pages
Book Rating : 4.5/5 (128 download)
Download or read book Lactogenesis written by Monica Reynolds and published by University of Pennsylvania Press. This book was released on 2016-11-11 with total page 284 pages. Available in PDF, EPUB and Kindle. Book excerpt: Proceedings of a symposium, satellite to the 24th International Congress of Physiological Sciences, University of Pennsylvania.
Author : Anjali Aggarwal
Publisher : Springer Science & Business Media
ISBN 13 : 813220879X
Total Pages : 200 pages
Book Rating : 4.1/5 (322 download)
Download or read book Heat Stress and Animal Productivity written by Anjali Aggarwal and published by Springer Science & Business Media. This book was released on 2012-12-30 with total page 200 pages. Available in PDF, EPUB and Kindle. Book excerpt: Dr. Anjali Aggarwal is working as a Senior Scientist at National Dairy Research Institute, Karnal (India). She holds a PhD degree in Animal Physiology and is involved in research and teaching at post-graduate level. Her area of research work is stress and environmental physiology. She has more than 50 publications, two technical bulletins, four manuals and many book chapters to her credit. She has successfully guided many post-graduate and PhD students. Her major research accomplishments are on microclimatic modification for alleviation of heat and cold stress, mist and fan cooling systems for cows and buffaloes, and use of wallowing tank in buffaloes. Her work involves the use of technology of supplementing micronutrients during dry period and early lactation to crossbred and indigenous cows for alleviating metabolic and oxidative stress and improved health and productivity. Studies are also done in her lab on partitioning of heat loss from skin and pulmonary system of cattle and buffaloes as a result of exercise or exposure to heat stress. Dr. R.C. Upadhyay is working as Head, Dairy Cattle Physiology Division at National Dairy Research Institute, Karnal (India). He graduated in Veterinary Sciences and obtained his PhD degree in Animal Physiology. His area of recent research is climate change, stress, and environmental physiology. His major research accomplishment is on climate change impact assessment of milk production and growth in livestock. His work also involves studying methane conversion and emission factors for Indian livestock and use of IPCC methodology of methane inventory of Indian livestock. Heat shock protein-70 expression studies in cattle and buffaloes are also done in his lab. Draught animal power evaluation, fatigue assessment, work-rest cycle and work limiting factors form the highlights of his work. Studies on partitioning of heat loss from skin and pulmonary system of cattle and buffaloes and electrocardiographic studies in cattle, buffalo, sheep and goat are also undertaken in his lab. He has more than 75 research papers, four books and several book chapters to his credit. Technologies developed and research done by him include methodology of methane measurement: open and closed circuit for cattle and buffaloes; inventory of methane emission from livestock using IPCC methodology; livestock stress index: thermal stress measurement based on physiological functions; and draught power evaluation system and large animal treadmill system. He received training in Radio-nuclides in medicine at Australian School of Nuclear Technology, Lucas heights, NSW, Australia in 1985 and Use of radioisotopes in cardiovascular investigations at CSIRO, Prospect, NSW, Australia, during 1985-86. He has guided several post-graduate and PhD students. He is recipient of Hari Om Ashram Award-1990 (ICAR) for outstanding research in animal sciences.
Author : R.B. Heap
Publisher : Butterworth-Heinemann
ISBN 13 : 1483100839
Total Pages : 297 pages
Book Rating : 4.4/5 (831 download)
Download or read book Biotechnology in Growth Regulation written by R.B. Heap and published by Butterworth-Heinemann. This book was released on 2013-10-22 with total page 297 pages. Available in PDF, EPUB and Kindle. Book excerpt: Biotechnology in Growth Regulation focuses on mechanisms of action of growth hormones and how immunological and transgenic procedures can affect growth response. The book first examines species specificity and structure-function relationship of growth hormones. Microheterogeneity of growth hormones; variations in amino acid sequence and biological properties of growth hormones; and structure-function relationship are discussed. The text also looks at growth hormone receptors and binding proteins; regulation of growth hormone receptors; modulations of growth hormone release; and neuroregulation of growth hormone secretion. The book then discusses the role of growth hormones in the regulation of adipocyte growth and function. Chronic effects of growth hormones on insulin action and lipid synthesis; effects of growth hormones on lipolysis; and adipogenesis are also described. The text looks at growth-promoting properties of recombinant growth hormones and mechanisms by which porcine growth hormone enhances growth in pigs. The book also highlights the direct effects of growth hormones on osteogenesis and chondrogenesis; action of IGF-I on mammary function; antigen-antibody complexes that enhance growth; and transgenics. The text also presents experiments that show the effects of growth hormones on animals. The book is a good source of information for readers wanting to study growth hormones.
