Novel selection strategies for sows and boars to optimize litter quality and performance

母猪和公猪的新颖选择策略，以优化窝产质量和性能

• 批准号: 462759-2013
• 负责人: Dyck, Michael
• 金额: $ 9.35万
• 依托单位: University of Alberta
• 依托单位国家: 加拿大
• 项目类别: Collaborative Research and Development Grants
• 财政年份: 2017
• 资助国家: 加拿大
• 起止时间: 2017-01-01 至 2018-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=619120
• 关键词: Novel; selection; strategies; sows; boars

Global, national and regional genetic companies are able to supply the Canadian pork production industry with production sows and terminal line boars with exceptional genetic merit. However, using existing management practices, and because of inadvertent genetic-environment interactions, producers fail to fully realize this genetic potential at the production level. Through a concerted effort to address issues related to the sows' impact on the performance of their litters and to maximize the genetic impact of top boars, the proposed research project will improve industry competitiveness and create opportunities for product differentiation. With regards to sow productivity, studies will characterization the factors that result in litter birth weight phenotypes and their economic impact on the Canadian pork industry. This will provide a better understanding of the maternal and fetal interactions that give rise to this economically important trait. Studies related to boar fertility will apply breeding management techniques to identify boars with superior reproductive efficiency and allow for the identification of biological markers of boar fertility. These studies will deliver novel tools and techniques to improve breeding management practices by identifying strategies to select for and manage difficult and expensive to measure traits that hold the most potential for genomic approaches for future improvement. This will lay the foundation for improved litter quality and increased competitiveness of the pork industry.

全球、国家和地区的遗传公司能够为加拿大猪肉生产行业提供具有特殊遗传优势的生产母猪和终端线公猪。然而，利用现有的管理实践，以及由于无意的遗传-环境相互作用，生产者未能在生产水平上充分认识到这种遗传潜力。通过共同努力解决与母猪对窝仔性能影响有关的问题，并最大限度地发挥顶级公猪的遗传影响，拟议的研究项目将提高行业竞争力，并为产品差异化创造机会。关于母猪生产力，研究将描述导致窝产重表型的因素及其对加拿大猪肉产业的经济影响。这将提供一个更好的理解母亲和胎儿的相互作用，产生这一经济上重要的特征。与公猪生育能力相关的研究将应用育种管理技术来鉴定具有优良繁殖效率的公猪，并允许鉴定公猪生育能力的生物标记。这些研究将提供新的工具和技术，通过确定策略来选择和管理具有最大潜力的基因组方法来改进育种管理实践的困难和昂贵的测量特征。这将为改善猪粪质量和提高猪肉行业的竞争力奠定基础。