Wenkoff M, Crowe-Swords P R
Can Vet J. 1983 Feb;24(2):50-3.
A herd of 180 beef cows was synchronized with prostaglandin and bred by artifical insemination for five successive years. Factors influencing the success or failure of estrus synchronizing programs were identified, including the management of nutrition, postpartum interval, cow age and artificial insemination technology. Specific recommendations on the management of prostaglandin-controlled breeding programs resulted in improving the pregnancy rates from 33% in year 1 to 67% in year 5. Improved management and close veterinary supervision were shown to improve the success of an estrus synchronization program.
一群180头肉用母牛连续五年使用前列腺素进行同期发情处理，并通过人工授精进行配种。确定了影响发情同期化程序成败的因素，包括营养管理、产后间隔、母牛年龄和人工授精技术。关于前列腺素控制的配种程序管理的具体建议使妊娠率从第1年的33%提高到了第5年的67%。结果表明，改进管理和密切的兽医监督可提高发情同期化程序的成功率。
