Factors Affecting Calf Crop

ISBN-13: 9780849311178 / Angielski / Twarda / 2001 / 320 str.

Robert S. Sand; Michael J. Fields

Opis

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 w

Spis treści

Developments in Reproductive Biotechnology that Will Improve the Weaned Calf Crop. Bovine Estrus. An Array of Approaches to Synchronize Estrus with Prostaglandins. Estrous Synchronization of Cyclic and Anestrous Cows with SYNCRO-MATE-B® . Use of GnRH to Synchronize Estrus and (or) Ovulation in Beef Cows with or without Timed Insemination. Current and Emerging Methods to Synchronize Estrus with Melengestrol Acetate (MGA). A Vaginal Insert (CIDR) to Synchronize Estrus and Timed AI. Management of Follicular Growth with Progesterone and Estradiol within Progestin-Based Estrous Synchrony Systems. The Freezing, Thawing, and Transfer of Cattle Embryos. Application of Embryo Transfer to the Beef Cattle Industry. Embryo Transfer in Tropically Adapted Cattle in the Semitropics. In Vitro Fertilization to Improve Cattle Production. National Bovine Genomics Projects. Genetic Technologies in Cow-Calf Operations. Somatic Cell Cloning in the Beef Industry. Alternative Methods to Micromanipulation for Producing Transgenic Cattle. Cloning and the Beef Cattle Industry. Reproductive Real-Time Ultrasound Technology. Factors that Affect Embryonic Survival in the Cow: Application of Technology to Improve the Calf Crop. Sexing Sperm for Beef and Dairy Cattle Breeding. New Developments in Managing the Bull.

O autorze

Michael J. Fields , Robert S. Sand , Joel V. Yelich