A stress susceptibility-targeted approach for genetic improvement of pork meat quality

以应激敏感性为目标的猪肉品质遗传改良方法

• 批准号: 543838-2019
• 负责人: Lu, Ray
• 金额: $ 1.62万
• 依托单位: University of Guelph
• 依托单位国家: 加拿大
• 项目类别: Collaborative Research and Development Grants
• 财政年份: 2020
• 资助国家: 加拿大
• 起止时间: 2020-01-01 至 2021-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=699705
• 关键词: stress; susceptibility; targeted; approach; genetic

The pork industry is a vital sector of Canadian economy, which exported $4 billion in 2018 (Canadian Pork Council, 2019). Farm animals, including pigs, experience stresses throughout their life, including social stress (e.g., feeding competition and weaning) and environmental stress (e.g., extreme temperatures, tight space and novel environment during transportation and at abattoir). It is well documented that stress impacts swine health and negatively affects production, including feed efficiency, growth and meat quality. Decades of growth and leanness-driven genetic breeding may have been at the expense of other traits such as animal behaviours and stress. In this proposal, we will focus on our newly discovered stress genes and identify beneficial genetic variations/DNA markers for enhancing meat quality while lowering sow stress. With the industrial support of Ontario Pork, Alliance Genetics Canada Inc (one of the biggest breeding companies in Ontario), and our collaborator, Canadian Centre for Swine Improvement Inc, we aim to devise a panel of genetic markers for genetic selection and breeding of high meat quality pigs with improved animal welfare for the swine industry.

猪肉行业是加拿大经济的重要部门，2018年出口40亿加元（加拿大猪肉理事会，2019年）。包括猪在内的农场动物在其一生中经历压力，包括社会压力（例如，喂养竞争和断奶）和环境压力（例如，极端的温度、狭小的空间和运输期间和屠宰场的新环境）。有充分的证据表明，压力会影响猪的健康，并对生产产生负面影响，包括饲料效率，生长和肉质。几十年的生长和消瘦驱动的遗传育种可能是以牺牲其他性状为代价的，如动物行为和压力。在这项提案中，我们将专注于我们新发现的应激基因，并确定有益的遗传变异/DNA标记，以提高肉质，同时降低母猪应激。在安大略猪肉公司、Alliance Genetics Canada Inc（安大略最大的育种公司之一）和我们的合作者加拿大猪改良中心的工业支持下，我们的目标是设计一组遗传标记，用于遗传选择和育种高肉质猪，改善养猪业的动物福利。