Use of genomic tools to improve feed efficiency in purebred Hereford cattle

使用基因组工具提高纯种赫里福德牛的饲料效率

• 批准号: 429224-2011
• 负责人: McDonald, Tanya
• 金额: $ 15.59万
• 依托单位: Olds College
• 依托单位国家: 加拿大
• 项目类别: College - University Idea to Innovation Grants
• 财政年份: 2014
• 资助国家: 加拿大
• 起止时间: 2014-01-01 至 2015-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=552371
• 关键词: Use; genomic; tools; improve; feed

This project will allow the livestock industry to reap the benefits of the scientific research involving residual feed intake (RFI). The purebred industry, where the foundation genetics are found, has not been taking advantage of identifying low RFI animals due to the lack of knowledge and high cost associated with RFI. Olds College and the University of Alberta are partnering with the Canadian Hereford Association to characterize RFI in purebred Hereford bulls; produce a RFI expected progeny difference (EPD) using both phenotypic and molecular information, and use genotypes to assist in the validation of an existing RFI single nucleotide polymorphism (SNP) panel produced by Livestock Gentec. This will involve RFI measurement on 900 bulls using the GrowsafeTM technology over a three year period. Identifying low RFI breeding stock has the potential to cut feeding costs, the number one non-capital cost faced by cattle producers. This project will provide the means of identifying more efficient sires, which will then sire more efficient progeny, not just in the Hereford breed, but across a large section of the commercial industry as well, improving the profit margin and competitiveness for many Canadian beef cattle producers. By identifying more efficient breeding stock, the entire cattle industry will also benefit from a reduced environmental footprint due to the reduced methane and manure output of more efficient cattle. Improved characterization of RFI and the production of a RFI EPD will increase the competitiveness of the Canadian purebred and commercial industries through reduced feed costs to the primary producers.

该项目将使畜牧业能够从涉及剩余采食量（RFI）的科学研究中获益。 由于缺乏与 RFI 相关的知识和高成本，发现基础遗传学的纯种产业尚未利用识别低 RFI 动物的优势。奥尔兹学院和阿尔伯塔大学正在与加拿大赫里福德协会合作，研究纯种赫里福德公牛的 RFI 特征；使用表型和分子信息产生 RFI 预期后代差异 (EPD)，并使用基因型协助验证由 Livestock Gentec 生产的现有 RFI 单核苷酸多态性 (SNP) 组合。这将涉及在三年内使用 GrowsafeTM 技术对 900 头公牛进行 RFI 测量。 识别低 RFI 种畜有可能降低饲养成本，这是养牛者面临的头号非资本成本。该项目将提供识别更高效的种牛的方法，从而培育出更高效的后代，不仅在赫里福德品种中，而且在商业行业的很大一部分中，提高许多加拿大肉牛生产商的利润率和竞争力。通过识别更高效的种畜，整个养牛业也将从减少的环境足迹中受益，因为更高效的牛可以减少甲烷和粪便的排放。 RFI 特征的改进和 RFI EPD 的生产将通过降低初级生产者的饲料成本来提高加拿大纯种和商业产业的竞争力。