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Author :
Publisher :
ISBN 13 :
Total Pages : 2 pages
Book Rating : 4.:/5 (319 download)
Download or read book Sparse Use of Reproductive Management Technology for Beef Heifers and Cows written by and published by . This book was released on 1994 with total page 2 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :
Publisher :
ISBN 13 :
Total Pages : 1 pages
Book Rating : 4.:/5 (38 download)
Download or read book Sparse Use of Reproductive Management Technology for Beef Heifers and Cows written by and published by . This book was released on 1994 with total page 1 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :
Publisher :
ISBN 13 :
Total Pages : 2 pages
Book Rating : 4.:/5 (319 download)
Download or read book Reproductive Technology in Beef Cow-calf Herds written by and published by . This book was released on 1998 with total page 2 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 : James A. Stotts
Publisher :
ISBN 13 :
Total Pages : 256 pages
Book Rating : 4.:/5 (135 download)
Download or read book Reproductive Management in Beef Cattle written by James A. Stotts and published by . This book was released on 1986 with total page 256 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Roy Deason
Publisher :
ISBN 13 :
Total Pages : 130 pages
Book Rating : 4.:/5 (18 download)
Download or read book Integrated Reproductive Management of Beef Cattle written by Roy Deason and published by . This book was released on 1988 with total page 130 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Michael J. Fields
Publisher : CRC Press
ISBN 13 : 1420040839
Total Pages : 321 pages
Book Rating : 4.4/5 (2 download)
Download or read book Factors Affecting Calf Crop written by Michael J. Fields and published by CRC Press. This book was released on 2001-11-21 with total page 321 pages. Available in PDF, EPUB and Kindle. Book excerpt: In today's world, we are witnessing simultaneous breakthroughs in reproductive technologies, genomics, and molecular biology. Advances in molecular genetic technology and understanding of the bovine genome have led to the development of tools that can be used to enhance profitability on cow-calf enterprises. Factors Affecting Calf Crop: Biotechnolo
Author : Spencer Roberts
Publisher :
ISBN 13 :
Total Pages : 72 pages
Book Rating : 4.:/5 (811 download)
Download or read book Improving Reproductive Management of Beef Cows written by Spencer Roberts and published by . This book was released on 1974 with total page 72 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :
Publisher :
ISBN 13 :
Total Pages : 908 pages
Book Rating : 4.E/5 ( download)
Download or read book Agrindex written by and published by . This book was released on 1995 with total page 908 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Wallace Dean Eide
Publisher :
ISBN 13 :
Total Pages : 5 pages
Book Rating : 4.:/5 (256 download)
Download or read book Integrated Reproductive Management written by Wallace Dean Eide and published by . This book was released on 1982 with total page 5 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Michael J Fields
Publisher : CRC Press
ISBN 13 : 9780367396701
Total Pages : 320 pages
Book Rating : 4.3/5 (967 download)
Download or read book Factors Affecting Calf Crop written by Michael J Fields and published by CRC Press. This book was released on 2019-08-30 with total page 320 pages. Available in PDF, EPUB and Kindle. Book excerpt: In today's world, we are witnessing simultaneous breakthroughs in reproductive technologies, genomics, and molecular biology. Advances in molecular genetic technology and understanding of the bovine genome have led to the development of tools that can be used to enhance profitability on cow-calf enterprises. Factors Affecting Calf Crop: Biotechnology of Reproduction provides a detailed compilation of current and forthcoming technology for managing reproduction in cattle. The book discusses topics such as: approved techniques for controlling the estrous cycle in cattle; managing follicular growth with progesterone, estrogens, and prostaglandins; freezing, thawing, and transfer of cattle embryos; application of embryo transfer to the beef cattle industry; embryo transfer in topically adapted cattle; new factors affecting bull fertility; embryo collection and utilization technology, in vitro fertilization, somatic cell cloning, and genetic technologies; uses of real-time ultrasound; and sexed semen. Over 25 leading animal scientists have combined their expertise to produce the first single-source reference that covers successful reproductive techniques that will, most likely, be the wave of the future. Expansive in scope, the book addresses current biotechnologies as they impact the production of beef cattle. Written at a level to appeal to the researcher, commercial producer, or student, Factors Affecting Calf Crop: Biotechnology of Reproduction presents you with a wealth of technologies applicable to animal agriculture.
Author : Dan T. Brown
Publisher :
ISBN 13 :
Total Pages : 8 pages
Book Rating : 4.:/5 (33 download)
Download or read book Reproductive Management of Commercial Beef Cows written by Dan T. Brown and published by . This book was released on 1995 with total page 8 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Carl B. and Florence E. King Workshop
Publisher :
ISBN 13 :
Total Pages : 69 pages
Book Rating : 4.:/5 (175 download)
Download or read book Reproductive Management of Beef Cattle written by Carl B. and Florence E. King Workshop and published by . This book was released on 1984 with total page 69 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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 : Magdalena Masello Souza
Publisher :
ISBN 13 :
Total Pages : 0 pages
Book Rating : 4.:/5 (14 download)
Download or read book Improving Reproductive Performance of Cattle Through the Development of Novel Management Strategies and Technologies written by Magdalena Masello Souza and published by . This book was released on 2020 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: The objectives of the studies presented in Section I were to evaluate insemination dynamics, time to pregnancy, and profitability of replacement dairy heifers managed with first service programs that relied primarily on insemination at detected estrus (AIE), timed-artificial insemination (TAI), or a combination of both. The objectives of the experiments presented in Section II were; to develop and validate a tool integrating a disposable fluorescence-based lateral flow immunoassay (LFIA) coupled with a portable imaging device to determine the reproductive status of cows based on circulating progesterone (P4) concentration; to test the efficacy of intravaginal (IVG) administration of prostaglandin-F2_ (PGF) to induce corpus luteum (CL) regression; and to develop and validate an electronically-controlled hormone delivery device for reproductive control of cattle. The studies presented in Section I demonstrated that a reproductive management strategy designed to submit all heifers to TAI reduced time to first AI and time to pregnancy when compared with a strategy that relied primarily on AIE after induction of estrus with PGF treatments. The program that combined AIE and TAI resulted in intermediate performance. In spite of greater reproductive cost, programs that used TAI in combination with AIE or solely TAI reduced rearing cost and generated more revenue during first lactation, which translated in numerically greater cash flow under fixed or simulated market conditions. The first experiment of Section II demonstrated that the developed LFIA system can accurately predict the presence of a functional CL (i.e., P4 ≥ 1 ng/mL) using bovine plasma samples. Additional improvements of this assay may lead to the development of a rapid, low-cost, cow-side tool for determination of reproductive status of cattle. The other experiments presented in Section II demonstrated that two IVG treatments of PGF 12 hours apart resulted in similar luteal regression risk, estrus expression, ovulatory response to GnRH, and pregnancy per AI compared with that observed after a single intramuscular dose of PGF. Further, we demonstrated that the current IVG prototype device for hormone delivery can be programmed to automatically release PGF for successful induction of luteal regression in cattle. Once optimized, the developed IVG device may be an alternative too to the needle-injection methods presently used to synchronize ovulation of cows.
Author : University of Arkansas. Agricultural Experiment Station
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (868 download)
Download or read book Reproductive Management of Beef Cattle written by University of Arkansas. Agricultural Experiment Station and published by . This book was released on with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Amanda J. Cain
Publisher :
ISBN 13 :
Total Pages : 7 pages
Book Rating : 4.:/5 (841 download)
Download or read book Reproductive Management of Beef Heifers written by Amanda J. Cain and published by . This book was released on 2013 with total page 7 pages. Available in PDF, EPUB and Kindle. Book excerpt:
