Development of Climate Master Cattle: A New Climate Resilient High-Value Wagyu Composite Beef Breed for Use in Temperate Environments

气候大师牛的开发：一种适用于温带环境的新型气候适应型高价值和牛复合牛肉品种

• 批准号: 560854-2020
• 负责人: Church, JohnJS
• 金额: $ 18.21万
• 依托单位: Thompson Rivers University
• 依托单位国家: 加拿大
• 项目类别: College - University Idea to Innovation Grants
• 财政年份: 2022
• 资助国家: 加拿大
• 起止时间: 2022-01-01 至 2023-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=761492
• 关键词: Development; Climate; Master; Cattle; New

Heat stress is an emerging cause of mortality and production loss in Bos taurus beef cattle production in North America. Despite extreme heat waves that occur in Canadian rangelands, there is very little heat stress research conducted in these settings. As heat waves and summer temperatures are projected to increase dramatically in Western Canada, there is a growing need to develop and select new heat-tolerant breeds of cattle for beef production in temperate environments. Additionally, due to anticipated increases in polar vortex activity, cattle must still be capable of performing/coping with severe cold stress simultaneously; or the industry will face increased production costs resulting from rising winter-feeding requirements, the single largest financial input cost to the cow/calf sector in Canada. To meet this challenge, we will develop a new composite beef breed believed capable of dealing with climatic extremes, while delivering unprecedented animal performance, superior carcass yield/quality and optimized beef nutritional attributes. We will combine totally unique Bos taurus breeds with novel and naturally occurring genomic mutations arising independently in very distinct global geographical locations. The composite beef breed we will develop, tentatively called the Climate Master, will provide the marketplace with a luxury beef eating experience for the modern gourmet beef consumer both in Canada and globally, while improving cattle industry resilience and sustainability of the national beef herd, in the face of unprecedented and unrelenting climate change.

热应激是北美肉牛生产中死亡和损失的一个新的原因。尽管加拿大牧场会出现极端热浪，但在这些环境下进行的热应激研究很少。由于预计加拿大西部的热浪和夏季气温将急剧上升，开发和选择新的耐热品种牛在温带环境中生产牛肉的需求越来越大。此外，由于预计极地涡旋活动增加，牛必须仍有能力同时执行/应对严重的寒冷应激；否则，该行业将面临冬季饲养需求上升导致的生产成本增加，这是加拿大奶牛/牛犊部门最大的一项财务投入成本。为了迎接这一挑战，我们将开发一种新的复合牛肉品种，据信能够应对极端气候，同时提供前所未有的动物性能、优越的屠体产量/质量和优化的牛肉营养属性。我们将结合完全独特的牛金牛品种与在非常独特的全球地理位置独立产生的新颖和自然发生的基因组突变。我们将开发的复合牛肉品种暂定为气候大师，将为加拿大和全球的现代美食牛肉消费者提供奢华的牛肉食用体验，同时提高养牛业的韧性和国家肉牛群的可持续性，面对前所未有的无情气候变化。