Northwest Research and Extension Center, Kansas State University, Colby, Kansas 67701, USA.
J Anim Sci. 2011 Sep;89(9):2950-4. doi: 10.2527/jas.2010-3719. Epub 2011 May 13.
Since its formation, the Beef Reproduction Task Force (BRTF) has worked to enhance productivity and profitability of US beef herds by integrating research and extension efforts with the intent of more effectively transferring the use of reproductive technologies to the field. A key early step was to coordinate efforts in identifying effective breeding management protocols for beef cattle and to clarify their associated acronyms. A short list of recommended protocols and their acronyms for synchronization of estrus and ovulation in beef cattle was developed based on results from peer-reviewed, published research and a comprehensive review of data collected from the field. The list of recommended protocols was developed by the BRTF in cooperation with veterinarians and cattle AI industries. These protocols and their acronyms are presented uniformly in all of the major AI sire directories and are available online at http://www.beefrepro.info. Protocol updates are made annually to incorporate the most recent research findings related to estrous cycle control in beef cattle. The Estrus Synchronization Planner, a software program developed in cooperation with the Iowa Beef Center, now reflects these same recommendations. Beginning in 2002, the BRTF hosted and presented 11 educational workshops to more than 1,900 attendees in key cow-calf states. These Applied Reproductive Strategies in Beef Cattle workshops targeted beef producers, AI industry personnel, veterinarians, allied industry representatives, and academicians. A national media sponsor provided online coverage of the last 3 workshops at http://www.appliedreprostrategies.com. A postmeeting evaluation, developed to assess application of information from 2 recent workshops, was returned by 55% of those contacted (n = 150). Attendees averaged 16 (± 13.4 SD) yr of AI experience, and 80% of respondents represented more than 100 cows. Respondents were asked to estimate the value of AI-sired calves compared with natural-service-sired calves to their operation on a per-animal-marketed basis, and 17 and 31% responded $50 to $100 per animal and more than $100 per animal, respectively. As a result of what was learned at these conferences, 78% of respondents were better able to troubleshoot management-related issues, 60% made alterations to a protocol they had been using, and 35% of the respondents indicated they changed to a different estrus synchronization protocol.
自成立以来,牛肉繁殖工作队(BRTF)一直致力于通过整合研究和推广工作来提高美国牛肉群的生产力和盈利能力,目的是更有效地将繁殖技术应用于实地。一个关键的早期步骤是协调努力,为肉牛确定有效的繁殖管理方案,并澄清其相关缩写。根据同行评议的已发表研究的结果和从实地收集的数据的综合审查,为牛的发情和排卵同步制定了一个简短的推荐方案清单及其缩写。推荐方案清单是由 BRTF 与兽医和牛人工授精行业合作制定的。这些方案及其缩写在所有主要的人工授精种公牛目录中统一呈现,并可在 http://www.beefrepro.info 在线获得。每年都会进行方案更新,以纳入与肉牛发情周期控制相关的最新研究结果。由爱荷华州牛肉中心合作开发的发情同步计划软件程序现在反映了这些相同的建议。从 2002 年开始,BRTF 在关键的奶牛-小牛州举办并举办了 11 次教育研讨会,有 1900 多名与会者参加。这些应用于肉牛的繁殖策略研讨会的目标是肉牛生产者、人工授精行业人员、兽医、相关行业代表和学者。一个全国性的媒体赞助商在 http://www.appliedreprostrategies.com 上对最近的 3 次研讨会进行了在线报道。为了评估最近两次研讨会信息的应用情况,开发了会后评估,联系了 55%的与会者(n=150)。与会者平均有 16 年(±13.4 SD)的人工授精经验,80%的受访者代表了 100 多头牛。要求受访者估计人工授精所产小牛与自然交配所产小牛对其业务的价值,分别有 17%和 31%的人回答每头动物 50 至 100 美元,超过 100 美元。由于在这些会议上学到的知识,78%的受访者能够更好地解决与管理相关的问题,60%的受访者对他们一直在使用的方案进行了修改,35%的受访者表示他们改用了不同的发情同步方案。