Effect Of Human Chorionic Gonadotropin Hcg Post Ovulation On Time To Conceptus Attachment In Lactating Dairy Cows

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Effect of Human Chorionic Gonadotropin (hcg) Post-ovulation on Time to Conceptus Attachment in Lactating Dairy Cows

Author : Alisson Da Mota Santos
Publisher :
ISBN 13 :
Total Pages : 118 pages
Book Rating : 4.7/5 (96 download)

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Book Synopsis Effect of Human Chorionic Gonadotropin (hcg) Post-ovulation on Time to Conceptus Attachment in Lactating Dairy Cows by : Alisson Da Mota Santos

Download or read book Effect of Human Chorionic Gonadotropin (hcg) Post-ovulation on Time to Conceptus Attachment in Lactating Dairy Cows written by Alisson Da Mota Santos and published by . This book was released on 2022 with total page 118 pages. Available in PDF, EPUB and Kindle. Book excerpt: Increasing progesterone (P4) during conceptus development is crucial for establishment of pregnancy in dairy cattle. We developed a robust technique to estimate d of conceptus attachment (CA) based on daily within-cow changes in concentrations of pregnancy-specific protein B (PSPB; BioPRYN). Highest sensitivity and specificity were obtained with a 12.5% increase in addition to 2 consecutive d of continuous increases when predicting CA. We hypothesized that increasing serum P4 post-ovulation would favor embryonic development and reduce time to CA in lactating dairy cows. The first objective was to determine the effects of treatment with hCG on d2, d5, and d2 and 5 post-ovulation on luteal function and serum P4. Treatment with hCG on d 2 & 5 or on d 5 increased P4 by inducing accessory CL (aCL) and increasing the volume of existing CL. On d 2, hCG increased P4 on d 5 post-ovulation. The second objective was to investigate the effects of treatment with hCG on time to CA. Treatment on d 5 reduced the percentage of cows with CA and increased time to CA. Primiparous cows benefited from ipsilateral aCL against pregnancy loss before d 100 post-AI/ovulation. Delayed time to CA was associated with pregnancy losses before d 35. The highest quartile of P4 on d 5, but not on d 19 & 20, was associated with reduced time to CA. Our hypothesis was not confirmed. Yet, early serum P4, but not late, was associated with time to conceptus attachment in multiparous dairy cows. Our findings indicated that treatment with hCG post-ovulation was not financially advantageous as treatment on d 5 or aCL induced by treatment reduced annual herd profits compared to standard reproductive programs such as Double-Ovsynch and Ovsynch.

Modifying the Double-ovsynch Protocol to Include Human Chorionic Gonadotropin to Synchronize Estrus in Dairy Cattle

Author : Joseph Andrew Binversie
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (756 download)

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Book Synopsis Modifying the Double-ovsynch Protocol to Include Human Chorionic Gonadotropin to Synchronize Estrus in Dairy Cattle by : Joseph Andrew Binversie

Download or read book Modifying the Double-ovsynch Protocol to Include Human Chorionic Gonadotropin to Synchronize Estrus in Dairy Cattle written by Joseph Andrew Binversie and published by . This book was released on 2011 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The objectives of this study were to determine whether conception, ovulation rates, presynchronization rates, or follicle and CL characteristics were altered after modifying the Double-Ovsynch (DO) protocol to include human chorionic gonadotropin (hCG) compared to the conventional DO protocol in dairy heifers and lactating dairy cows. We hypothesized that replacing the first injection of gonadotropin releasing hormone (GnRH) in the DO protocol with hCG would increase the proportion of females that ovulate, thus improving the presynchronization rate leading to increased conception rates. Ovulation rates were increased in cows administered hCG compared to GnRH, but subsequent synchronization, and conception rates did not differ between treatments. A greater proportion of hCG-treated cows tended to fail to have undergone luteolysis compared to those treated with GnRH. In conclusion, no improvement in overall fertility was achieved by replacing the first injection of GnRH in the DO protocol with hCG.

Regulation of Implantation and Establishment of Pregnancy in Mammals

Author : Rodney D. Geisert
Publisher : Springer
ISBN 13 : 3319158562
Total Pages : 271 pages
Book Rating : 4.3/5 (191 download)

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Book Synopsis Regulation of Implantation and Establishment of Pregnancy in Mammals by : Rodney D. Geisert

Download or read book Regulation of Implantation and Establishment of Pregnancy in Mammals written by Rodney D. Geisert and published by Springer. This book was released on 2015-10-08 with total page 271 pages. Available in PDF, EPUB and Kindle. Book excerpt: Over the past few decades technological advances in transcriptomics, proteomics, metabolomics, and glycomics along with the ability to selectively knockout genes of interest has greatly advanced our understanding of maternal-conceptus interactions that are essential for the establishment and maintenance of a successful pregnancy. This knowledge provides a foundation from which to build research endeavors to help resolve infertility, embryonic loss and recurrent abortion in humans, captive wild animals and important farm species. The present volume on “Regulation of Implantation and Establishment of Pregnancy in Mammals” brings together current reviews from leading experts to address the diversity of mechanisms by which species establish and maintain pregnancy. Implantation in rodents, dogs, pigs, cattle, sheep, horses, primates, humans and embryonic diapause in wild species are discussed. Reviews will provide current knowledge on the role of endometrial steroid receptors, adhesion factors, cytokines, interferons, steroids, prostaglandins, growth factors and immune cells involved with regulation of conceptus development.

Blastocyst Implantation

Author : Koji Yoshinaga
Publisher : Adams Publishing Group
ISBN 13 :
Total Pages : 264 pages
Book Rating : 4.3/5 (91 download)

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Book Synopsis Blastocyst Implantation by : Koji Yoshinaga

Download or read book Blastocyst Implantation written by Koji Yoshinaga and published by Adams Publishing Group. This book was released on 1989 with total page 264 pages. Available in PDF, EPUB and Kindle. Book excerpt:

MRCOG Part One

Author : Alison Fiander
Publisher : Cambridge University Press
ISBN 13 : 1107667135
Total Pages : 557 pages
Book Rating : 4.1/5 (76 download)

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Book Synopsis MRCOG Part One by : Alison Fiander

Download or read book MRCOG Part One written by Alison Fiander and published by Cambridge University Press. This book was released on 2016-10-13 with total page 557 pages. Available in PDF, EPUB and Kindle. Book excerpt: A fully updated and illustrated handbook providing comprehensive coverage of all curriculum areas covered by the MRCOG Part 1 examination.

A Guide to Environmental Research on Animals

Author : National Research Council (U.S.). Committee on Physiological Effects of Environmental Factors on Animals
Publisher : National Academies
ISBN 13 :
Total Pages : 390 pages
Book Rating : 4.1/5 (312 download)

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Book Synopsis A Guide to Environmental Research on Animals by : National Research Council (U.S.). Committee on Physiological Effects of Environmental Factors on Animals

Download or read book A Guide to Environmental Research on Animals written by National Research Council (U.S.). Committee on Physiological Effects of Environmental Factors on Animals and published by National Academies. This book was released on 1971-01-01 with total page 390 pages. Available in PDF, EPUB and Kindle. Book excerpt: Bioclimatic factors and their measurement. Physiologic functions and measurement techniques. Animal characteristics in relation to environmental response. Environment and physiopathology. Design and execution of experiments using domestic animals. Development of research facilities. Research under field conditions.

Pick Up and Oocyte Management

Author : Antonio Malvasi
Publisher : Springer Nature
ISBN 13 : 3030287416
Total Pages : 373 pages
Book Rating : 4.0/5 (32 download)

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Book Synopsis Pick Up and Oocyte Management by : Antonio Malvasi

Download or read book Pick Up and Oocyte Management written by Antonio Malvasi and published by Springer Nature. This book was released on 2019-11-28 with total page 373 pages. Available in PDF, EPUB and Kindle. Book excerpt: This richly illustrated book focuses on one of the specific and crucial steps of the Medically Assisted Procreation techniques that is often overlooked: the oocyte pick-up. Enhanced by a large number of high-quality pictures, this atlas of oocyte retrieval comprehensively describes important aspects such as the setting of the ultrasonic equipment, the choice of needle, the layout of the devices in the room and the technique to be used, which, if not properly handled, can lead to erroneous behaviors. The original and detailed illustrations, mainly microscopic images and explanatory drawings, help readers to better understand how to manage all the phases of the ovarian pick-up and oocyte management. This practical atlas provides a valuable guide for all specialists who want to improve their skills and gain confidence with the MPA techniques.

Embryology

Author : Bin Wu
Publisher : BoD – Books on Demand
ISBN 13 : 1789853052
Total Pages : 148 pages
Book Rating : 4.7/5 (898 download)

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Book Synopsis Embryology by : Bin Wu

Download or read book Embryology written by Bin Wu and published by BoD – Books on Demand. This book was released on 2019-08-28 with total page 148 pages. Available in PDF, EPUB and Kindle. Book excerpt: Recently developed new embryology theory may greatly improve the success of assisted reproductive technology (ART) in the treatment of human infertility and animal well-being. This book updates and reviews newly developed theories and technologies in human in vitro fertilization and focuses mainly on discussing its clinical practice. Areas covered include ovarian stimulation medicine and final ART outcomes, involving oocyte in vitro maturation, oocyte fertilization and failure treatment, blastocyst formation and implantation, as well as regulation of neuroendocrine embryo implantation. Thus, this book will add new knowledge for readers to improve their appreciation of ART.

Textbook of Clinical Embryology

Author : Kevin Coward
Publisher : Cambridge University Press
ISBN 13 : 110727625X
Total Pages : 408 pages
Book Rating : 4.1/5 (72 download)

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Book Synopsis Textbook of Clinical Embryology by : Kevin Coward

Download or read book Textbook of Clinical Embryology written by Kevin Coward and published by Cambridge University Press. This book was released on 2013-10-31 with total page 408 pages. Available in PDF, EPUB and Kindle. Book excerpt: The success of Assisted Reproductive Technology is critically dependent upon the use of well optimized protocols, based upon sound scientific reasoning, empirical observations and evidence of clinical efficacy. Recently, the treatment of infertility has experienced a revolution, with the routine adoption of increasingly specialized molecular biological techniques and advanced methods for the manipulation of gametes and embryos. This textbook – inspired by the postgraduate degree program at the University of Oxford – guides students through the multidisciplinary syllabus essential to ART laboratory practice, from basic culture techniques and micromanipulation to laboratory management and quality assurance, and from endocrinology to molecular biology and research methods. Written for all levels of IVF practitioners, reproductive biologists and technologists involved in human reproductive science, it can be used as a reference manual for all IVF labs and as a textbook by undergraduates, advanced students, scientists and professionals involved in gamete, embryo or stem cell biology.

Prescribing in Pregnancy

Author : Peter C. Rubin
Publisher : John Wiley & Sons
ISBN 13 : 0470695552
Total Pages : 256 pages
Book Rating : 4.4/5 (76 download)

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Book Synopsis Prescribing in Pregnancy by : Peter C. Rubin

Download or read book Prescribing in Pregnancy written by Peter C. Rubin and published by John Wiley & Sons. This book was released on 2008-04-30 with total page 256 pages. Available in PDF, EPUB and Kindle. Book excerpt: This thoroughly revised edition of Prescribing in Pregnancy is a practical and authoritative guide for all doctors who prescribe for pregnant women. Covering both the prescribing of drugs for common conditions in pregnant women and the effect of different drugs on pregnancy, the fourth edition now also features: strengthened evidence for the prescribing regimens updated prescribing information throughout a new user-friendly design Written by leading specialists, Prescribing in Pregnancy covers the common medical problems encountered in pregnancy, and includes information on travel medicine, breast feeding and the management of drug and alcohol abuse. The fourth edition of this comprehensive and relevant book is an invaluable reference for the busy doctor, on the wards and in general practice.

Hormonal Control of Lactation

Author : A. T. Cowie
Publisher : Springer Science & Business Media
ISBN 13 : 3642813895
Total Pages : 481 pages
Book Rating : 4.6/5 (428 download)

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Book Synopsis Hormonal Control of Lactation by : A. T. Cowie

Download or read book Hormonal Control of Lactation written by A. T. Cowie and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 481 pages. Available in PDF, EPUB and Kindle. Book excerpt: Research on the hormonal control oflactation - the subject of this monograph - has long been the major interest of this laboratory. Studies were initiated in the mid 1930s by the late Professor S. 1. Folley, FRS, who directed the work with immense enthusiasm and devotion until his untimely death in 1970. This fruitful area of basic and applied research has, in recent years, attracted widespread attention; there have been many exciting events and developments with a dramatic increase in the number of publications. These events are diverse and include the identification, isolation and sequencing of human prolactin; the identification and isolation of placentallactogens in several ruminant species with recognition of their importance in mammary growth and differentiation; the introduction of highly sensitive bioassay, radioimmuno- and radioreceptor-assay techniques for mammotrophic hormones; the growing clinical appreciation of the immunological and nutritional importance of colostrum and milk to the newborn; the intensification of studies on normal mammogenesis to establish a sound basis for studies on mammary cancer; and the exploitation of the mammary gland, with its characteristic differentiation patterns and multiple synthetic abilities, as a valuable tissue for the investigation of basic mechanisms involved in the synthesis under hormonal control of enzymes and secretory proteins; and for the study of hormone - receptor interactions.

Training Manual for Embryo Transfer in Cattle

Author : George E. Seidel
Publisher : Australian Geographic
ISBN 13 :
Total Pages : 184 pages
Book Rating : 4.:/5 (319 download)

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Book Synopsis Training Manual for Embryo Transfer in Cattle by : George E. Seidel

Download or read book Training Manual for Embryo Transfer in Cattle written by George E. Seidel and published by Australian Geographic. This book was released on 1991 with total page 184 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Laboratory Production of Cattle Embryos

Author : Ian Gordon
Publisher : CABI
ISBN 13 : 9780851998480
Total Pages : 580 pages
Book Rating : 4.9/5 (984 download)

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Book Synopsis Laboratory Production of Cattle Embryos by : Ian Gordon

Download or read book Laboratory Production of Cattle Embryos written by Ian Gordon and published by CABI. This book was released on 2003-01-01 with total page 580 pages. Available in PDF, EPUB and Kindle. Book excerpt: 3000 new references added since the first editionGives information necessary to produce embryos totally through in vitro techniques Shows commercial applications of embryo and oocyte researchCattle remain at the forefront of many new developments in reproductive technology and what can be done for the cow today will later be applicable to other farm livestock and perhaps humans. This new edition reviews the considerable advances and issues in embryo production technology, based on reports since the first edition in 1994. This is a must have volume for those who own the first edition, and in itself an incredibly informative text.

Manual of Equine Reproduction - E-Book

Author : Steven P. Brinsko
Publisher : Elsevier Health Sciences
ISBN 13 : 0323065139
Total Pages : 336 pages
Book Rating : 4.3/5 (23 download)

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Book Synopsis Manual of Equine Reproduction - E-Book by : Steven P. Brinsko

Download or read book Manual of Equine Reproduction - E-Book written by Steven P. Brinsko and published by Elsevier Health Sciences. This book was released on 2010-05-19 with total page 336 pages. Available in PDF, EPUB and Kindle. Book excerpt: Now in full color, Manual of Equine Reproduction, 3rd Edition provides a comprehensive look at the reproductive management of horses, including management of stallions, pregnant mares, and neonatal foals. Expert authors use a concise, practical approach in discussing improved therapies and treatments in equine breeding. You’ll enhance your skills and knowledge with this book’s detailed coverage of techniques used in reproductive examination, breeding procedures, pregnancy diagnosis, foaling, and reproductive tract surgery. A clinical emphasis includes a step-by-step format of possible scenarios from conception to breeding management. Practical information includes topics such as breeding with transported cooled or frozen semen, and caring for the broodmare and newborn foal. The organization of material corresponds to the course of study in veterinary school, so you can find topics easily. Chapter objectives and study questions at the beginning of each chapter guide you through the material and provide clear learning goals. Evaluation of Breeding Records chapter covers the importance of breeding records, and how to use them to evaluate stallion performance and optimize fertility. References are listed at the end of each chapter for further research and study. Full-color photographs and illustrations clearly depict procedures, and all drawings have been redrawn and improved. NEW Assisted Reproductive Technology chapter goes beyond embryo transfer. Updated content includes the latest advances in therapies and treatments. New content is added to two chapters, Reproductive Physiology of the Nonpregnant Mare and Manipulation of Estrus in the Mare. Thorough coverage of every aspect of equine reproduction provides a strong foundation for success in veterinary practice, including a discussion of the use of GnRH-analog deslorelin (Ovuplant) to hasten ovulation; aseptic technique for endometrial biopsy; use of transabdominal ultrasonography, especially in early pregnancy; determination of fetal gender by transrectal ultrasonography; aspiration testicular biopsy using a spring-loaded biopsy instrument; and procedure for surgical embryo transfer.

Cancer and Pregnancy

Author : Eytan R. Barnea
Publisher : Springer Science & Business Media
ISBN 13 : 1447107071
Total Pages : 316 pages
Book Rating : 4.4/5 (471 download)

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Book Synopsis Cancer and Pregnancy by : Eytan R. Barnea

Download or read book Cancer and Pregnancy written by Eytan R. Barnea and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 316 pages. Available in PDF, EPUB and Kindle. Book excerpt: Cancer and Pregnancy covers the clinical challenges to diagnosing and treating malignancies in the pregnant patient; however, the book also shows how an understanding of the common features of both processes (rapid cell proliferation) may lead to novel anti-cancer treatment options. The book should be read by obstetricians and gynaecologists, clinical oncologists, reproduction specialists, and those involved in investigation of development, biology, toxicology, immunology, as well as cancer research.

Reproductive Technologies in Farm Animals, 2nd Edition

Author : Ian Gordon
Publisher : CABI
ISBN 13 : 178064602X
Total Pages : 353 pages
Book Rating : 4.7/5 (86 download)

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Book Synopsis Reproductive Technologies in Farm Animals, 2nd Edition by : Ian Gordon

Download or read book Reproductive Technologies in Farm Animals, 2nd Edition written by Ian Gordon and published by CABI. This book was released on 2017-06-23 with total page 353 pages. Available in PDF, EPUB and Kindle. Book excerpt: Building on the successful structure of the first edition, the second edition of Reproductive Technologies in Farm Animals has been totally updated and revised to provide an up to date account of the key techniques employed in manipulating reproduction in farm animals, including beef and dairy cattle, pigs, sheep, goats, buffaloes, camelids, horses and poultry. A classic introductory text to the subject, the book is based on a comprehensive review of the current literature. This text remains key reading for students in animal science, agriculture, veterinary medicine and biology, and veterinary practitioners and farmers who wish to keep updated on developments in techniques that may be useful in their daily practice.

Current Therapy in Large Animal Theriogenology - E-Book

Author : Robert S. Youngquist
Publisher : Elsevier Health Sciences
ISBN 13 : 1437713408
Total Pages : 1088 pages
Book Rating : 4.4/5 (377 download)

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Book Synopsis Current Therapy in Large Animal Theriogenology - E-Book by : Robert S. Youngquist

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.