Improving sow lifetime productivity and the number of quality pigs marketed per sow using novel phenotypes and genomics

在育种计划中确定优质动物将提高母猪终身生产力（SLP）和每头母猪销售的优质猪的数量，从而对加拿大猪肉行业的整体盈利能力和可持续性产生积极影响。母猪终身生产力是一种复杂的性状，涉及遗传潜能、潜在生理机制和农场实施的生殖管理实践之间的相互作用。母猪终身生产力也是母猪福利和可持续性的重要组成部分，它与当前的行业趋势特别相关。在该项目中，我们将确定不同性状之间潜在的遗传和表型关系，以实现更平衡的选择，以提高SLP和生产盈利能力。我们将在首次服务时确定后备母猪合格性的关键生理成分，为提高生产力和寿命奠定基础，并制定新的饲养和管理指南，以确保改良的遗传潜力在商业母猪群中得到表达。最终，我们假设这将提高整体生产效率，并提高加拿大养猪业的竞争力和可持续性。这个项目的预期结果的价值将使我们的行业合作伙伴，加拿大和全世界的养猪业受益。我们将确保成果在养猪业的转移和应用，并支持在商业层面采用新知识，直接将研究成果转化为生产者的采用。该项目将为遗传和精密生猪生产方面的高素质人才提供机会。

Identifying superior animals in the breeding program will improve sow lifetime productivity (SLP) and the number of quality pigs marketed per sow and thus will have a positive impact on overall profitability and sustainability of the Canadian pork industry. Sow lifetime productivity is a complex trait that involves interactions between the genetic potential, the underlying physiological mechanisms and the reproductive management practices implemented on farm. Sow lifetime productivity is also an important component of sow welfare and sustainability and it is of particular relevance to current industry trends.In the proposed project, we will identify the underlying genetic and phenotypic relationships between different traits in order to achieve more balanced selection to improve SLP and production profitability. We will identify the key physiological components of gilt eligibility at first service to lay the foundation for improved productivity and longevity and develop new rearing and management guidelines to ensure the improved genetic potential is expressed in commercial sow herds. Ultimately, we hypothesize this will improve overall production efficiency and result in improved competitiveness and sustainability of the Canadian pig industry. The value of the expected results from this project will benefit our industry partner, the swine industry in Canada and worldwide. We will ensure the transfer of results and application in the swine industry and support the adoption of new knowledge at the commercial level, directly translating research to adoption by producers. The project will provide opportunities for highly qualified personnel in both genetics and precision pig production.