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Author : Jack Leo Ruttle
Publisher :
ISBN 13 :
Total Pages : 4 pages
Book Rating : 4.:/5 (922 download)
Download or read book Effect of Body Weight, Pelvic Area and Calf Measurements on Dystocia in Beef Heifers written by Jack Leo Ruttle and published by . This book was released on 1982 with total page 4 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Bila Lubabalo
Publisher :
ISBN 13 :
Total Pages : 160 pages
Book Rating : 4.:/5 (129 download)
Download or read book Using Pelvic Area Measurements in the Selection of Replacements Sussex Heifers written by Bila Lubabalo and published by . This book was released on 2019 with total page 160 pages. Available in PDF, EPUB and Kindle. Book excerpt: The aim of this study was to use pelvic area measurements and external body measurements in the selection of replacement Sussex heifers to reduce dystocia during parturition, while improving their ease of calving. A total number of one hundred and eighty-six (186) first calf Sussex heifers ca 24 months old, weighing approximately 350 kg were used for this study. All heifers used for the study had a good body condition score (BCS) with an average of three and weighed more than 65% of the mature female body weight of the Sussex breed. Six two-year-old bulls, weighing approximately 800 kg were used for mating the 135 heifers during the first trial and with a bull ratio of (1:35; 1:35; 1:35 and 1:30). The second trial consisted of 51 heifers with a bull ratio of 1:30 and 1:21. All the bulls were tested for fertility by a private veterinarian before the breeding season. A phenotypic negative correlation was found between CES and PA, r = -0.26 and a moderate negative correlation between CES and PH, r = -0.40. There was a significant correlation between CES and calf gender, r = -0.35. The chances of a heifer to experience dystocia were more when a male calf was born compared to female calves. Birth weight, which is regarded as a good indicator of calf size revealed a positive correlation with CES, r = 0.31, this showing that the higher the BW, the higher the probability of a heifer to experience dystocia. The R2 value of 0.34 indicated that approximately 34% of the variability in PA could be predicted by the chest depth of heifers. It can be concluded that pelvic measurements in Sussex heifers may be a valuable tool to reduce dystocia.
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 : 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 : Richard M. Hopper
Publisher : John Wiley & Sons
ISBN 13 : 111960236X
Total Pages : 1236 pages
Book Rating : 4.1/5 (196 download)
Download or read book Bovine Reproduction written by Richard M. Hopper and published by John Wiley & Sons. This book was released on 2021-07-21 with total page 1236 pages. Available in PDF, EPUB and Kindle. Book excerpt: Bovine Reproduction A complete resource for practical, authoritative information on all aspects of bovine theriogenology The newly revised Second Edition of Bovine Reproduction delivers a comprehensive overview of all major issues in bovine reproduction. Written by leading experts in the subject, the book is an indispensable reference for any veterinarian dealing with bovine fertility. Bovine Reproduction is divided into sections on the bull, the cow, the neonate, and assisted reproduction techniques. New chapters cover new gene manipulation technologies, managing problem donors, lameness, and more. Outdated and redundant information from the First Edition has been removed and replaced by coverage of new diseases, technologies, procedures, techniques, and approaches to fertility problems. A new companion website provides images and tables from the book in PowerPoint format. In addition to more than 675 full-color images, readers will also benefit from: A thorough discussion of the anatomy and physiology of the bull, including the endocrine and exocrine function of bovine testes and the thermoregulation of the testes An exploration of breeding and health management of bulls, including the evaluation of breeding soundness and ultrasound examination of the reproductive tract An examination of the anatomy, physiology, and the breeding and health management of cows, including fetal programming, the reproductive tract microbiome, and a section on obstetrics and reproductive surgery A review of the management of both critical care of the neonate and effective colostrum assessment and provision An introduction to assisted and advanced reproductive technologies A practical and comprehensive reference, Bovine Reproduction is a must-have purchase for bovine practitioners, theriogenologists, animal scientists, veterinary students, and residents with an interest in cattle.
Author : David J Patterson
Publisher : Elsevier Health Sciences
ISBN 13 : 032326137X
Total Pages : 210 pages
Book Rating : 4.3/5 (232 download)
Download or read book Beef Heifer Development, An Issue of Veterinary Clinics: Food Animal Practice written by David J Patterson and published by Elsevier Health Sciences. This book was released on 2013-12-28 with total page 210 pages. Available in PDF, EPUB and Kindle. Book excerpt: The latest information on heifer development in beef cattle for the food animal practitioner! Topics include rebuilding the US cowherd, physiology and endocrinology of puberty, nutritional development and the target weight debate, long-term reproductive health, effect of prenatal programming on development, economics of development, synchronization of estrus and ovulation, post breeding heifer management, management strategies for adding value to heifers, and more!
Author : David G. Kleinbaum
Publisher : Springer Science & Business Media
ISBN 13 : 1475741081
Total Pages : 291 pages
Book Rating : 4.4/5 (757 download)
Download or read book Logistic Regression written by David G. Kleinbaum and published by Springer Science & Business Media. This book was released on 2013-11-11 with total page 291 pages. Available in PDF, EPUB and Kindle. Book excerpt: This text on logistic regression methods contains the following eight chapters: 1 Introduction to Logistic Regression 2 Important Special Cases of the Logistic Model 3 Computing the Odds Ratio in Logistic Regression 4 Maximum Likelihood Techniques: An Overview 5 Statistical Inferences Using Maximum Likelihood Techniques 6 Modeling Strategy Guidelines 7 Modeling Strategy for Assessing Interaction and Confounding 8 Analysis of Matched Data Using Logistic Regression Each chapter contains a presentation of its topic in "lecture-book" format together with objectives, an outline, key formulae, practice exercises, and a test. The "lecture-book" has a sequence of illustrations and formulae in the left column of each page and a script in the right column. This format allows you to read the script in conjunction with the illustrations and formulae that high light the main points, formulae, or examples being presented. The reader mayaiso purchase directly from the author audio-cassette tapes of each chapter. If you purchase the tapes, you may use the tape with the illustrations and formulae, ignoring the script. The use of the audiotape with the illustrations and formulae is intended to be similar to a lecture. An audio cassette player is the only equipment required. Tapes may be obtained by writing or calling the author at the following address: Depart ment of Epidemiology, School of Public Health, Emory University, 1599 Clifton Rd. N. E. , Atlanta, GA 30333, phone (404) 727-9667. This text is intended for self-study.
Author : Dixon D. Hubbard
Publisher :
ISBN 13 :
Total Pages : 84 pages
Book Rating : 4.:/5 (319 download)
Download or read book Guidelines for Uniform Beef Improvement Programs written by Dixon D. Hubbard and published by . This book was released on 1981 with total page 84 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :
Publisher :
ISBN 13 :
Total Pages : 328 pages
Book Rating : 4.3/5 (121 download)
Download or read book Research Report written by and published by . This book was released on 1983 with total page 328 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : David Cottle
Publisher : CSIRO PUBLISHING
ISBN 13 : 0643109897
Total Pages : 583 pages
Book Rating : 4.6/5 (431 download)
Download or read book Beef Cattle Production and Trade written by David Cottle and published by CSIRO PUBLISHING. This book was released on 2014-04-15 with total page 583 pages. Available in PDF, EPUB and Kindle. Book excerpt: Covers all aspects of the beef industry from paddock to plate.
Author : Frank H. Baker
Publisher : CRC Press
ISBN 13 : 0429725590
Total Pages : 715 pages
Book Rating : 4.4/5 (297 download)
Download or read book Beef Cattle Science Handbook, Vol. 20 written by Frank H. Baker and published by CRC Press. This book was released on 2019-03-01 with total page 715 pages. Available in PDF, EPUB and Kindle. Book excerpt: The 1984 International Stockmen's School Handbooks include more than 200 technical papers presented at this year's Stockmen's School, sponsored by Winrock International. The authors of these papers are outstanding animal scientists, agribusiness leaders, and livestock producers who are expert in animal technology, animal management, and gene
Author : V. Ŝloss
Publisher :
ISBN 13 : 9780683077452
Total Pages : 208 pages
Book Rating : 4.0/5 (774 download)
Download or read book Handbook of Bovine Obstetrics written by V. Ŝloss and published by . This book was released on 1980-01-01 with total page 208 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 : 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 : Michael J. Fields
Publisher : CRC Press
ISBN 13 : 1000109844
Total Pages : 385 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 385 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 : David E. Noakes
Publisher : Elsevier Health Sciences
ISBN 13 : 0702072389
Total Pages : 849 pages
Book Rating : 4.7/5 (2 download)
Download or read book Arthur's Veterinary Reproduction and Obstetrics - E-Book written by David E. Noakes and published by Elsevier Health Sciences. This book was released on 2018-10-30 with total page 849 pages. Available in PDF, EPUB and Kindle. Book excerpt: As the standard theriogenology text for veterinary students, Veterinary Reproduction and Obstetrics is also a great reference to keep post-graduation. The 10th edition of this book has been thoroughly updated to include normal reproduction and reproductive disorders, as well as diseases in the common and less common domestic species (dogs, cats, pigs, and horses as well as llamas, alpacas, and camels). This sorely needed information is vital for practicing in underdeveloped countries which lack the technology, equipment, and personnel offered in the U.S. With many international contributing authors, this one-of-a-kind text includes developments in reproductive biology and endocrinology from across the globe. - Only textbook covering all major domestic mammalian species ensures you get consistent, authoritative advice on all species that experience challenges related to reproduction and obstetrics. - Only book available that covers all aspects of theriogenology in all major domestic mammalian species recognizes the importance of species from every inch of the globe. - A practical, clinical approach to the content provides you with the instruction you need to improve your clinical proficiency. - Comparative aspects of theriogenology and obstetrics helps you to see beyond your species of immediate interest, and broaden your scope of knowledge and understanding of the discipline. - Consistent leadership of David Noakes through nine previous editions makes this the most highly regarded text worldwide in this genre. - NEW! Extensive coverage of less-common domestic species prepares you to work with these animals in developing countries where they're more common. - NEW! Black and white images replaced with color pictures to optimize full-color design and demonstrate specific techniques. - NEW! Additional international contributors provide you with a global, multi-faceted perspective on a variety of species.
Author :
Publisher :
ISBN 13 :
Total Pages : 670 pages
Book Rating : 4.:/5 (319 download)
Download or read book Beef Cattle Handbook written by and published by . This book was released on 1972 with total page 670 pages. Available in PDF, EPUB and Kindle. Book excerpt:
