Sustainable health management for dairy cattle in Canada

该项目将通过解决我们的合作伙伴在国家乳制品研究战略中确定的有针对性的新兴和未满足的需求来支持乳制品行业。我们与行业合作伙伴（Dairy Farmers of Ontario、Dairy Farmers of Canada、Lactanet 和 Veal Farmers of Ontario）共同开发了该项目。 根据消费者的期望来满足合作伙伴的需求需要用健康动物可持续生产牛奶。我们将在 5 年内完成 15 项研究，其中包括两大调查支柱。主题 1 通过解决加拿大乳制品行业面临的关键健康、环境和经济问题来支持可持续牛奶生产。 我们将考虑盈利能力、动物健康和环境影响来确定最佳繁殖目标，以最少的生殖激素使用来优化繁殖性能，改进子宫炎症的检测方法，确定有助于成功过渡到哺乳期的因素，并了解采用最佳管理实践的障碍。我们将量化早期疾病对奶牛寿命和生产力的影响。我们的工作将开发和验证决策支持，以减少用于治疗犊牛腹泻的抗菌药物的使用。主题 2 解决加拿大奶牛场的主要传染病和生物安全问题。 我们将重点研究地方性牛白血病和都柏林沙门氏菌，以获得有关这些疾病如何以及何时传播的新见解。 我们将应用这些新知识来开发新的控制策略，并在现实条件下测试这些策略。我们将使用散装牛奶开发和验证行业规模的传染病监测，并揭示导致疾病在农场之间传播的传播网络。我们将实施全面的知识翻译和转移计划，包括同行评审的出版物、视频、非专业文章和社交媒体，以确保成果被生产者所传达和实施。我们将在高度优先的问题上取得切实可行的进展，使加拿大乳制品行业能够维持健康动物的高效生产，满足社会期望并支持消费者需求。

This project will support the dairy industry by addressing targeted emerging and unmet needs identified by our partners in the National Dairy Research Strategy. We developed this project with our industry partners, Dairy Farmers of Ontario, Dairy Farmers of Canada, Lactanet, and Veal Farmers of Ontario. Meeting our partners' needs based on consumers' expectations requires sustainable production of milk from healthy animals. We will complete 15 studies over 5 years with two pillars of investigation. Theme 1 supports sustainable milk production by addressing critical health, environmental, and economic concerns that face the Canadian dairy industry. We will determine optimal reproduction targets considering profitability, animal health, and environmental impacts, optimize reproductive performance with minimal use of reproductive hormones, improve detection methods for uterine inflammation, identify factors contributing to a successful transition to lactation, and understand barriers to adoption of best management practices. We will quantify the effects of disease in early life on the longevity and productivity of dairy cows. Our work will develop and validate decision supports to reduce antimicrobial use to treat diarrhea in calves. Theme 2 addresses key infectious disease and biosecurity concerns on Canadian dairy farms. We will focus several studies on enzootic bovine leukosis and Salmonella Dublin, gaining new insights into how and when these diseases are spread. We will apply that new knowledge to develop new strategies for control and test these under real-world conditions. We will develop and validate industry-scale infectious disease surveillance using bulk tank milk, and uncover the transmission networks that allow for spread of disease between farms. We will implement a comprehensive knowledge translation and transfer plan including peer-reviewed publications, as well as videos, lay articles, and social media to ensure the results reach and are implemented by producers. We will make actionable progress on high priority issues to position the Canadian dairy industry to sustain efficient production from healthy animals that meets social expectations and supports consumer demand.