Comparison Of Long Term Progestin Based Protocols To Synchronize Estrus In Beef Heifers
Download Comparison Of Long Term Progestin Based Protocols To Synchronize Estrus In Beef Heifers PDF/ePub or read online books in Mobi eBooks. Click Download or Read Online button to get Comparison Of Long Term Progestin Based Protocols To Synchronize Estrus In Beef Heifers book now. This website allows unlimited access to, at the time of writing, more than 1.5 million titles, including hundreds of thousands of titles in various foreign languages.
Comparison of Long-term Progestin-based Protocols to Synchronize Estrus in Beef Heifers
Experiment 1 evaluated two long-term progestin-based and controlled internal drug release estrus synchronization protocols to determine their potential to facilitate fixed-time artificial insemination in estrous cycling and prepubertal beef heifers. Conception to AI, AI pregnancy, and final pregnancy rates did not differ between treatments. Experiment 2 compared two long-term progestin-based estrus synchronization protocols to evaluate their potential to facilitate fixed-time artificial insemination in estrous cycling and prepubertal beef heifers. Estrous response after PG was greater among CIDR treated heifers compared to MGA treated heifers. Conception to AI, AI pregnancy, and final pregnancy rates did not differ between treatments. In summary, the long-term CIDR protocol compared favorably with the MGA protocol. Experiment 3 was conducted to compare pregnancy rates resulting from fixed-time AI after administration of either one of two long-term CIDR-based protocols. CIDR-GnRH-PG and CIDR-PG treated heifers were fixed-time inseminated at 72 or 66 hr after PG, respectively. Fixed-time AI pregnancy rates tended to be higher among CIDR-PG compared to CIDR-GnRH-PG treated heifers. Final pregnancy rates did not differ between treatments. In summary, both long-term progestin-based protocols were effective in synchronizing estrus prior to fixed-time AI in beef heifers.
Beef Heifer Development, An Issue of Veterinary Clinics: Food Animal Practice
Author: David J Patterson
language: en
Publisher: Elsevier Health Sciences
Release Date: 2013-12-28
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!
Bovine Theriogenology, An Issue of Veterinary Clinics of North America: Food Animal Practice
Author: Robert L. Larson
language: en
Publisher: Elsevier Health Sciences
Release Date: 2016-07-10
This issue of Veterinary Clinics of North America: Food Animal Practice focuses on Bovine Theriogenology. Article topics include: Reproductive systems for North American Beef Cattle Herds, Reproductive systems for North American Dairy Cattle Herds, Beef Heifer Development, Dairy Heifer Development, Evaluation of data obtained at pregnancy detection of beef herds ,Synchronization and AI Strategies in Beef Herds, Synchronization and AI Strategies in Dairy Herds, Embryo Transfer, Management of reproductive disease in dairy cattle, Venereal Diseases of Cattle, Diagnosis and Control of Neosporosis, Management and Breeding Soundness Examination of Yearling Bulls, and more!