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Author : John Ernest Nellor
Publisher :
ISBN 13 :
Total Pages : 140 pages
Book Rating : 4.:/5 (67 download)
Download or read book Hormonal Control of Estrus in the Beef Heifer written by John Ernest Nellor and published by . This book was released on 1956 with total page 140 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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 : Susan Carol Leers
Publisher :
ISBN 13 :
Total Pages : 150 pages
Book Rating : 4.:/5 (182 download)
Download or read book The Control of Estrus and Ovulation in Dairy Heifers with Alfaprostol and Gonadotropin Releasing Hormone written by Susan Carol Leers and published by . This book was released on 1987 with total page 150 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Robert S. Youngquist
Publisher : Elsevier Health Sciences
ISBN 13 : 1437713408
Total Pages : 1088 pages
Book Rating : 4.4/5 (377 download)
Download or read book Current Therapy in Large Animal Theriogenology - E-Book written by Robert S. Youngquist and published by Elsevier Health Sciences. This book was released on 2006-11-23 with total page 1088 pages. Available in PDF, EPUB and Kindle. Book excerpt: An essential resource for both students and practitioners, this comprehensive text provides practical, up-to-date information about normal reproduction and reproductive disorders in horses, cattle, small ruminants, swine, llamas, and other livestock. Featuring contributions from experts in the field, each section is devoted to a different large animal species and begins with a review of the clinically relevant aspects of the reproductive anatomy and physiology of both males and females. Key topics include the evaluation of breeding soundness, pregnancy diagnosis, diagnosis and treatment of infertility, abortion, obstetrics, surgery of the reproductive tract, care of neonates, and the latest reproductive technology. Includes coverage of all large animal species. All sections provide a review of clinically pertinent reproductive physiology and anatomy of males and females of each species. Complete coverage of the most current reproductive technology, including embryo transfer, estrous synchronization, and artificial insemination. A new section on alternative farming that addresses reproduction in bison, elk, and deer. New to the equine section: stallion management, infertility, and breeding soundness evaluation. New to the bovine section: estrous cycle synchronization, reproductive biotechnology, ultrasonographic determination of fetal gender, heifer development, and diagnosis of abortion. New to the porcine section: artificial insemination, boar/stud management, diseases of postpartum period, and infectious disease control. New to the llama section: infectious disease and nutrition.
Author : George Harold D'Addamio
Publisher :
ISBN 13 :
Total Pages : 118 pages
Book Rating : 4.:/5 (172 download)
Download or read book Plasma Progesterone and Luteinizing Hormone Concentrations in Beef Heifers Following Estrous Synchronization with Hormonal Implants written by George Harold D'Addamio and published by . This book was released on 1974 with total page 118 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Henry Edgar Van Blake
Publisher :
ISBN 13 :
Total Pages : 156 pages
Book Rating : 4.E/5 ( download)
Download or read book The Synchronization of the Estrous Cycles of Dairy and Beef Cattle written by Henry Edgar Van Blake and published by . This book was released on 1962 with total page 156 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Peter J. H. Ball
Publisher : John Wiley & Sons
ISBN 13 : 1405148012
Total Pages : 248 pages
Book Rating : 4.4/5 (51 download)
Download or read book Reproduction in Cattle written by Peter J. H. Ball and published by John Wiley & Sons. This book was released on 2008-04-15 with total page 248 pages. Available in PDF, EPUB and Kindle. Book excerpt: Cattle play a fundamental role in animal agriculture throughout the world. They not only provide us with a vital food source, but they also provide us with fertilizer and fuel. Keeping reproduction levels at an optimum level is therefore essential, but this is often a complicated process, especially with modern, high yielding cows. Written in a practical and user-friendly style, this book aims to help the reader understand cattle reproduction by explaining the underlying physiology of the reproductive process and the role and importance of pharmacology and technology, and showing how management techniques can improve reproductive efficiency. This edition includes: Recent research findings on the physiology of the oestrous cycle and its control; New techniques for monitoring and manipulating reproduction, including pregnancy diagnosis and embryo transfer; Advice on identifying common infertility problems and how to prevent and treat them. Reproduction Cattle 3e is essential reading for veterinary and agricultural students, as well as veterinarians and farmers involved in cattle reproduction.
Author : Lynn Dian Rodger
Publisher :
ISBN 13 :
Total Pages : 144 pages
Book Rating : 4.:/5 (13 download)
Download or read book Gonadotropin Releasing Hormone-induced Alteration of Corpus Luteum Function in Beef Heifers written by Lynn Dian Rodger and published by . This book was released on 1985 with total page 144 pages. Available in PDF, EPUB and Kindle. Book excerpt: Two experiments were conducted to evaluate the effects of gonadotropin releasing hormone (GnRH) on the function of the bovine corpus luteum during the estrous cycle. In Experiment 1, 10 heifers were assigned randomly into two groups with each heifer serving as her own control. Heifers in Group I (n=5) were injected intravenously (iv) with vehicle (saline) on day 2 of the cycle (day 0=day of estrus) followed by an iv injection of 100 ug GnRH on day 2 of the subsequent estrous cycle. Group II (n=5) heifers were similarly treated except injections were given on day 10 of the estrous cycle. All heifers were bled via the jugular vein at 15 minute intervals beginning 30 minutes prior to injection and for 3 hours after injection. Blood samples were also taken on alternate days after injection through day 16 of the cycle. Gonadotropin releasing hormone caused a significant release of luteinizing hormone (LH) on both treatment days with the peak occurring at 15 to 30 minutes postinjection. Treatment with GnRH on either day 2 or 10 of the cycle caused a reduction in serum progesterone levels on days 12, 14 and 16 of the cycle (Group I, control 3.99, 3.97, 4.07 vs treated 2.63, 3.45, 2.87; Group II, control 3.18, 3.82, 4.13 vs treated 2.50, 2.82, 3.17 ng/ml, respectively, P
Author : Sukanta Mondal
Publisher : Academic Press
ISBN 13 : 0128222662
Total Pages : 530 pages
Book Rating : 4.1/5 (282 download)
Download or read book Emerging Issues in Climate Smart Livestock Production written by Sukanta Mondal and published by Academic Press. This book was released on 2021-12-03 with total page 530 pages. Available in PDF, EPUB and Kindle. Book excerpt: Emerging Issues in Climate Smart Livestock Production: Biological Tools and Techniques furnishes a detailed reference on livestock sustainability and the role of biotechnology for creating more sustainable livestock production systems. The book is a collection of scientific techniques, including genetic engineering used to modify and improve animals, fishes, and microorganisms for human benefit. The book is particularly attractive for scientists, researchers, students, educators, and professionals in agriculture, veterinary, and biotechnology science. This book promotes several biotechnological approaches that can easily be evaluated in the field for quality assurance programs beneficial to producing livestock products and overall public health. Biotechnology has the potential to improve the productivity of animals via increased growth, carcass quality and reproduction, improved nutrition and feed utilization, improved food quality and safety, improved animal health and welfare, and reduced waste through more efficient utilization of resources. - Identifies and explores biotechnological approaches for sustainable livestock and fish production - Focuses on strategies for enhancing livestock and fishery productivity and sustainability - Presents the latest research on modern methods and technologies
Author :
Publisher : BoD – Books on Demand
ISBN 13 : 1838819363
Total Pages : 260 pages
Book Rating : 4.8/5 (388 download)
Download or read book Animal Reproduction in Veterinary Medicine written by and published by BoD – Books on Demand. This book was released on 2021-01-20 with total page 260 pages. Available in PDF, EPUB and Kindle. Book excerpt: Despite efforts to control udder health in cattle, are the causes of mastitis are on the rise. Although at first glance the birth process seems normal in domestic pigs, what could be the problem? What are the clinical aspects of the oestrus cycle and pregnancy endocrinology in mares? What is Lidia cattle breeding and clinic? Does calf gender affect milk yield? Do insecticides reduce fertility? Could boar pheromones be an option to stimulate sow reproduction? Animal Reproduction in Veterinary Medicine is a book with the answers to such questions. It includes ‘Induction and Synchronization of Estrus’, which describes the protocol principles and tools. The practical approach this book takes will help students, farmers, veterinarians and academics to build an understanding of the concepts and procedures required to answer real questions by comprehending the basic function of real clinic data. Humans often endure results from the misunderstanding that to be doing well, they should make each thing themselves.
Author : James Stephen Kesner
Publisher :
ISBN 13 :
Total Pages : 324 pages
Book Rating : 4.3/5 (129 download)
Download or read book Control of the Preovulatory Luteinizing Hormone and Follicle Stimulating Hormone Surges in Cattle written by James Stephen Kesner and published by . This book was released on 1981 with total page 324 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Jack DeYoung
Publisher :
ISBN 13 :
Total Pages : 86 pages
Book Rating : 4.:/5 (843 download)
Download or read book Estrus and Ovulation Control in Beef Heifers written by Jack DeYoung and published by . This book was released on 1972 with total page 86 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Phillip L. Senger
Publisher :
ISBN 13 : 9780965764810
Total Pages : 0 pages
Book Rating : 4.7/5 (648 download)
Download or read book Pathways to Pregnancy and Parturition written by Phillip L. Senger and published by . This book was released on 2003 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: College level animal reproductive physiology.
Author : McKenzie R. Corpron
Publisher :
ISBN 13 :
Total Pages : 252 pages
Book Rating : 4.6/5 (721 download)
Download or read book Improving Beef Cattle Reproductive Efficiency written by McKenzie R. Corpron and published by . This book was released on 2020 with total page 252 pages. Available in PDF, EPUB and Kindle. Book excerpt: Less than 10% of beef cow-calf producers in the United States currently implement reproductive technologies such as estrous synchronization and artificial insemination (AI) as a component of their breeding management program. Synchronization protocols aid in the synchrony of estrus and ovulation to improve cattle fertility, however, many protocols often require multiple hormone injections and animal handlings. Development of estrous synchronization protocols that limit number of injections, cost, and labor inputs, without compromising fertility, may improve the adoption of fixed-time artificial insemination (FTAI) within the beef industry. The main objective of the first study was to compare the effect of a single injection of high-concentration (HICON) prostaglandin F2[alpha] (PGF) or two conventional PGF injections (2PGF) administered 8 h apart at controlled internal drug release insert (CIDR) removal, on reducing serum progesterone (P4) before FTAI and on subsequent pregnancy per artificial insemination (P/AI) in postpartum beef cows (n=404) synchronized with a 5-d CO-Synch + CIDR breeding program. Serum P4 concentration at the time of insemination is a determining factor of cattle fertility in FTAI protocols, as lower concentrations have been associated with increased P/AI. A secondary objective of the first study was to assess the relationship between P4 concentration at the time of insemination and probability of pregnancy to AI. Progesterone concentrations at AI were lesser in 2PGF than HICON, however, P/AI was not different between treatments. Probability of pregnancy decreased as P4 concentration at AI increased and the optimal P4 cutoff concentration to optimize fertility was determined at 0.43 ng/mL. Intramuscular (i.m.) route of injection is commonly used to administer products used in estrous synchronization in beef cattle; however, this route causes greater incidence of injection-site lesions and tissue damage associated with reduced beef carcass quality and tenderness than subcutaneous (s.c.) routes. Therefore, use of s.c. administration is favorable to reduce carcass damage. The objective of the second study was to compare the ability of a single s.c. injection of high-concentration PGF (HICON-SC) with two i.m. injections of conventional PGF 6 h apart (2PGF-IM) to reduce P4 concentration and induce luteolysis by the time of AI in a 5-d CO-Synch + CIDR synchronization program in postpartum beef cows. A similar decline in P4 concentration occurred in both treatments following PGF, indicating s.c. administration of HICON could be an effective alternative to i.m. administration of the conventional double PGF dose to induce luteolysis before AI in the 5-d CO-Synch + CIDR protocol.
Author : Carla Mucignat-Caretta
Publisher : CRC Press
ISBN 13 : 1466553413
Total Pages : 614 pages
Book Rating : 4.4/5 (665 download)
Download or read book Neurobiology of Chemical Communication written by Carla Mucignat-Caretta and published by CRC Press. This book was released on 2014-02-14 with total page 614 pages. Available in PDF, EPUB and Kindle. Book excerpt: Intraspecific communication involves the activation of chemoreceptors and subsequent activation of different central areas that coordinate the responses of the entire organism—ranging from behavioral modification to modulation of hormones release. Animals emit intraspecific chemical signals, often referred to as pheromones, to advertise their presence to members of the same species and to regulate interactions aimed at establishing and regulating social and reproductive bonds. In the last two decades, scientists have developed a greater understanding of the neural processing of these chemical signals. Neurobiology of Chemical Communication explores the role of the chemical senses in mediating intraspecific communication. Providing an up-to-date outline of the most recent advances in the field, it presents data from laboratory and wild species, ranging from invertebrates to vertebrates, from insects to humans. The book examines the structure, anatomy, electrophysiology, and molecular biology of pheromones. It discusses how chemical signals work on different mammalian and non-mammalian species and includes chapters on insects, Drosophila, honey bees, amphibians, mice, tigers, and cattle. It also explores the controversial topic of human pheromones. An essential reference for students and researchers in the field of pheromones, this is also an ideal resource for those working on behavioral phenotyping of animal models and persons interested in the biology/ecology of wild and domestic species.
Author : Samir Zaki El-Zarkouny
Publisher :
ISBN 13 :
Total Pages : 442 pages
Book Rating : 4.:/5 (517 download)
Download or read book Hormonal Control of Estrus, Ovulation, and Follicular Dynamics in High Producing Dairy Cows Before and After Timed Insemination written by Samir Zaki El-Zarkouny and published by . This book was released on 2002 with total page 442 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : D.B. Crighton
Publisher : Butterworth-Heinemann
ISBN 13 : 1483162710
Total Pages : 503 pages
Book Rating : 4.4/5 (831 download)
Download or read book Control of Ovulation written by D.B. Crighton and published by Butterworth-Heinemann. This book was released on 2013-10-22 with total page 503 pages. Available in PDF, EPUB and Kindle. Book excerpt: Control of Ovulation discusses the general principles and practical applications of ovulation control. The book presents 25 papers that cover the basic research practices and practicalities of ovulation control. The materials are grouped according to their respective themes. The first three parts cover the hypothalamus, pituitary gland, and ovary, respectively. The remaining papers discuss concerns regarding the applications of ovulation control, such as ovulation failure; diagnosis of ovulatory disorders; and the induction and synchronization of ovulation. The text will be of great use to practitioners of obstetrics and gynecology in both human and veterinary medicine.
