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Author : Louis Jefferson Boyd
Publisher :
ISBN 13 :
Total Pages : 210 pages
Book Rating : 4.:/5 (655 download)
Download or read book Factors Affecting Sperm Production by Dairy Bulls written by Louis Jefferson Boyd and published by . This book was released on 1956 with total page 210 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Robert Charles Lewis
Publisher :
ISBN 13 :
Total Pages : 154 pages
Book Rating : 4.3/5 (129 download)
Download or read book Some Factors Affecting Spermatogenesis and Fertility of Dairy Bulls written by Robert Charles Lewis and published by . This book was released on 1948 with total page 154 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 : Lennart Söderquist
Publisher :
ISBN 13 :
Total Pages : 156 pages
Book Rating : 4.E/5 ( download)
Download or read book Sperm Characteristics and Fertility in Dairy A.I. Bulls written by Lennart Söderquist and published by . This book was released on 1991 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 : Rita Payan-Carreira
Publisher : BoD – Books on Demand
ISBN 13 : 9535134779
Total Pages : 194 pages
Book Rating : 4.5/5 (351 download)
Download or read book Theriogenology written by Rita Payan-Carreira and published by BoD – Books on Demand. This book was released on 2017-09-06 with total page 194 pages. Available in PDF, EPUB and Kindle. Book excerpt: Theriogenology, the field that studies animal reproductive health and disease, is a challenging field that shows a steady growth. It covers diverse aspects of reproduction in domestic and wild animals, including the assisted reproductive techniques, which have enormously enhanced the ability to rescue endangered species and provide a strong support to the high reproductive efficiency requested by livestock production. Reproductive success, as well as infertility, is the culmination of complex physiological and adaptive processes that guarantee, at the end, a species' ability to reproduce and its survival in a challenging and ever-changing environment. In this book, we present to you a collection of manuscripts exploring various aspects of the reproductive function of mammal and marine species. I hope you find this a useful book in your collection.
Author : Stephanie R. De Vriese
Publisher : The American Oil Chemists Society
ISBN 13 : 9781893997394
Total Pages : 288 pages
Book Rating : 4.9/5 (973 download)
Download or read book Male Fertility and Lipid Metabolism written by Stephanie R. De Vriese and published by The American Oil Chemists Society. This book was released on 2003-05-30 with total page 288 pages. Available in PDF, EPUB and Kindle. Book excerpt: Interest in lipid metabolism and polyunsaturated fatty acids in relation to sperm production has increased during the last decade. The motivation for the research described in this book originates from the discovery that sperm lipids contain extremely high proportions of long-chain polyunsaturated fatty acids, thus establishing a link between lipid biochemistry and male fertility. Moreover, the fact that polyunsaturated fatty acids must, in some form, be supplied in the diet suggests a relationship between fertility and nutrition and raises the possibility of improving male fertility by dietary means. This book gives the reader an up-to-date view of several aspects of male fertility in relation to lipid and fatty acid metabolism. Researchers in the domain of male fertility, fatty acid metabolism, and antioxidants; medical personnel involved in the treatment of male infertility; fat technologists; students in nutrition, dietetics, biochemistry, pharmacy, and medicine; and everybody interested in the field will find this book useful.
Author : J.M. Sreenan
Publisher : Springer Science & Business Media
ISBN 13 : 9400950381
Total Pages : 294 pages
Book Rating : 4.4/5 (9 download)
Download or read book Embryonic Mortality in Farm Animals written by J.M. Sreenan and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 294 pages. Available in PDF, EPUB and Kindle. Book excerpt: Reproductive wastage is a major inefficiency in all livestock production with embryonic mortality accounting for a major portion of this loss. Accordingly the Commission of the European Communities encouraged the organisation of a seminar on embryonic mortality in farm animals which was held in Brussels on the 11th and 12th of December 1984. This book contains the text of the papers, discussions and final summary presented at that Seminar. As a background to the Seminar, the extent and timing of embryonic loss was described for farm animals. Particular consideration was then given to the various mechanisms and signals, both embryonic and uterine in origin, that are so far known to be involved in the establishment of pregnancy. Possible causes of embryonic death including physiological, endocrinological, genetic and immunological components were outlined and discussed. The final summary contains general conclusions from the Seminar and recommendations for future research work on this topic. J.M. Sreenan M.G. Diskin July 1985. ******************** THE EXTENT AND TIMING OF EMBRYONIC MORTALITY IN THE COW J. M. Sreenan & M. G. Diskin, The Agricultural Institute, Belclare, Tuam, Galway, Ireland ABSTRACT The extent and timing of embryonic mortality in heifers, normal cows and repeat breeder cows has been reviewed.
Author : Durward Olds
Publisher :
ISBN 13 :
Total Pages : 28 pages
Book Rating : 4.:/5 (31 download)
Download or read book Factors Affecting Reproductive Efficiency in Dairy Cattle written by Durward Olds and published by . This book was released on 1954 with total page 28 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :
Publisher :
ISBN 13 :
Total Pages : 36 pages
Book Rating : 4.:/5 (31 download)
Download or read book Causes and Prevention of Reproductive Failures in Dairy Cattle written by and published by . This book was released on 1961 with total page 36 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Rajasingam S. Jeyendran
Publisher : Cambridge University Press
ISBN 13 : 9780521524179
Total Pages : 178 pages
Book Rating : 4.5/5 (241 download)
Download or read book Sperm Collection and Processing Methods written by Rajasingam S. Jeyendran and published by Cambridge University Press. This book was released on 2003-02-13 with total page 178 pages. Available in PDF, EPUB and Kindle. Book excerpt: This practical guide to sperm collection and processing methods demonstrates the tremendous success of these procedures to help overcome infertility. This compilation, prepared by an interdisciplinary team of experts, will provide clinical and laboratory professionals from all areas of reproductive medicine with a comprehensive overview and a handy reference resource. Most sterility cases are now either treatable or entirely circumvented through various clinical techniques described in this volume, including surgical correction, hormone treatment, and various sperm enhancement technologies.
Author : Henry Joe Bearden
Publisher :
ISBN 13 : 9780130403469
Total Pages : 352 pages
Book Rating : 4.4/5 (34 download)
Download or read book Applied Animal Reproduction written by Henry Joe Bearden and published by . This book was released on 1992 with total page 352 pages. Available in PDF, EPUB and Kindle. Book excerpt: This updated and revised edition provides an overview of the anatomy and physiology of reproduction in farm animals, emphasizing the application of scientific principles in practical reproduction management.
Author : Michael J. Fields
Publisher : CRC Press
ISBN 13 : 100015288X
Total Pages : 414 pages
Book Rating : 4.0/5 (1 download)
Download or read book Factors Affecting Calf Crop written by Michael J. Fields and published by CRC Press. This book was released on 2021-11-18 with total page 414 pages. Available in PDF, EPUB and Kindle. Book excerpt: Factors Affecting Calf Crop summarizes the latest information available from leading cattle physiologists and geneticists regarding factors known to influence the production of live calves at weaning. You get practical information on management techniques for improving reproduction efficiency in the herd. You'll also learn about the functioning of the reproductive system and how this may affect reproductive processes in the cow herd. Managers will benefit from a clearer understanding of the factors known to limit efficient reproduction, while veterinarians and other professionals who advise cattlemen will appreciate the substantial reference material and color photographs for defining cow condition scores. Color photographs are also used to illustrate the discussions of testicular thermographies and their applications. Other chapters in the book cover developments in improving reproductive performance of the replacement heifer, the brood cow, and the bull. Topics on reproduction include physiology/endocrinology, the use of growth promotants, genetics and physiological and economic considerations in selecting the age to breed heifers, heritability of fertility, length of the breeding season, prepartum and postpartum nutrition, nursing by the calf, cloning of embryos, and much more.
Author : Allison Gorr
Publisher :
ISBN 13 :
Total Pages : 0 pages
Book Rating : 4.:/5 (135 download)
Download or read book Identification of Factors Affecting Dairy Sire Semen Production and Optimization of the AI Supply Chain written by Allison Gorr and published by . This book was released on 2022 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: This dissertation focused on product forecasting and optimization of the dairy sire artificial insemination (AI) supply chain. Three main chapters explore different aspects in the supply chain, bull-level sperm production prediction, herd ranking and valuation for culling decisions, and global product allocation. The first chapter explored the predictive ability of machine learning (ML) algorithms in forecasting total sperm (TSp) using management factors and bull demographics. When using random forest (RF), at least 85% accuracy was achieved when predicting up to 4 months out. The most influential factors were collection frequency, TSp in previous months, and age at collection. The second chapter provided a framework to model herd replacement decisions and predict net present value (NPV) of Holstein bulls. The Markov Chain (MC) modeled the steady state proportion of bulls within a herd across 330 iterations, with aggregated NPV calculated after each time point, which steady state was reached at 310 iterations. In a case study, 49% of bulls were recommended for culling based on negative BullVal$ (bull's NPV minus NPV of replacement). A bull's NPV was influenced primarily by market allocation and pricing, as well as the interaction of sperm production with genetic merit. The final chapter focused on global allocation of semen units, utilizing a linear program optimization model. Constraints considered were regional demand, bulls' semen production supply, and company's supply. Most limiting constraints to the solution were regional demands, as supported by a sensitivity analysis, with the largest change in objective function value per unit increase assigned to regional demand. This dissertation achieved the goal of leveraging ML, Markov chains, and optimization models in decision-making processes of the AI supply chain. Forecasting weekly TSp using a RF model could enhance the operational efficiency of semen processing, collection scheduling, and inventory control. In conjunction with an accurate monthly TSp forecast, an AI company can use the global allocation tool to assign product for the coming trimester. The results can then be used in culling and collection decisions. The global allocation tool's sensitivity analysis would be beneficial for an AI company to negotiate bounds and constraints. BullVal$ tool would be most beneficial in culling decisions as well as being tied into the product allocation and collection scheduling processes. Bulls with negative BullVal$ should be culled before high BullVal$ bulls (barring any health issues), to make way for more profitable replacements. Prioritization of high BullVal$ bulls in collection scheduling would allow an AI company to maximize profit and market potential.
Author : Alexander John Parthenis
Publisher :
ISBN 13 :
Total Pages : 92 pages
Book Rating : 4.:/5 (189 download)
Download or read book Semen Production of Beef Bulls and Certain Factors Affecting Survival of Sperm During Storage written by Alexander John Parthenis and published by . This book was released on 1951 with total page 92 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Jack Willard Snyder
Publisher :
ISBN 13 :
Total Pages : 324 pages
Book Rating : 4.3/5 (129 download)
Download or read book Effect of Forced Exercise Upon Reproduction of the Dairy Bull written by Jack Willard Snyder and published by . This book was released on 1950 with total page 324 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Ian Gordon
Publisher : CABI
ISBN 13 : 9780851998480
Total Pages : 580 pages
Book Rating : 4.9/5 (984 download)
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.
