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.

该项目将使牲畜行业能够从涉及残余饲料摄入量（RFI）的科学研究中获得好处。 发现基础遗传学的纯种工业，由于缺乏与RFI相关的知识和高成本，尚未利用低RFI动物的优势。奥尔兹学院和艾伯塔大学正在与加拿大赫里福德协会合作，以纯种赫里福德公牛的RFI为特征；使用表型和分子信息产生RFI预期的后代差异（EPD），并使用基因型来帮助验证由Livestock Gentec生产的现有RFI单核苷酸多态性（SNP）。这将涉及在三年内使用GROWSAFETM技术对900公牛进行的RFI测量。 确定低RFI育种库存有可能降低喂养成本，这是牛生产商面临的第一笔非资本成本。该项目将提供识别更有效的父亲的手段，然后将其更有效的后代，不仅在赫里福德品种中，而且在商业行业的大部分地区，从而提高了许多加拿大牛奶生产商的利润率和竞争力。通过确定更高效的繁殖库存，由于甲烷和肥料的肥料减少，整个牛业也将受益于环境足迹的减少。 RFI的表征改进和RFI EPD的生产将通过降低主要生产商的饲料成本来提高加拿大纯种和商业行业的竞争力。