The unexplored bioactivity of colostrum

初乳的未开发生物活性

• 批准号: 556284-2020
• 负责人: Steele, Michael
• 金额: $ 13.4万
• 依托单位: University of Guelph
• 依托单位国家: 加拿大
• 项目类别: Alliance 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=706113
• 关键词: unexplored; bioactivity; colostrum

The Canadian dairy industry generates more than $6 billion in cash receipts, with sales increasing by 26% over the past decade. However, amongst all animals on farm dairy calves suffer from the highest rates of morbidity and mortality, with digestive disorders accounting for over half of illnesses and one-third of deaths during early life. Therefore, digestive disorders during early life represent a significant economic loss to dairy producers and pose a serious threat to animal health and welfare, and thus the profitability of the Canadian dairy industry. Colostrum, the first secretion produced after calving, contains a wide array of bioactive molecules that have an unrealized potential to promote optimal gut function and development in young calves and in-turn reduce the rates of digestive morbidity. The specific goal of this research project is to uncover the unexplored bioactivity of colostrum and to maximize strategic colostrum use to stimulate development and health in dairy calves during early life. The research objectives will focus on determining how prepartum cow factors influence the profile of colostrum bioactive compounds, how specific colostrum bioactive compounds impact calf development and metabolism, and strategies to optimize colostrum use after the first day of life to maximize long-term health and productivity. These objectives will result in maximizing the production value of dry cattle and colostrum, and will deliver knowledge to industry stakeholders that will improve calf health and development and reduce the current high rates of morbidity, mortality and antimicrobial use in production animals. As such, this project will increase both consumer trust in the Canadian dairy industry and economic efficiency of dairy farms, thereby ensuring the future sustainability and profitability of the Canadian dairy industry.

加拿大乳制品行业产生了超过60亿美元的现金收入，销售额在过去十年中增长了26%。然而，在农场的所有动物中，奶牛犊牛的发病率和死亡率最高，消化系统疾病占早期疾病的一半以上，死亡人数占三分之一。因此，生命早期的消化障碍对乳品生产者来说是一项重大的经济损失，并对动物的健康和福利构成严重威胁，从而威胁到加拿大乳制品行业的盈利能力。初乳是产犊后产生的第一种分泌物，含有广泛的生物活性分子，具有促进幼犊肠道功能和发育的潜力，进而降低消化系统的发病率。该研究项目的具体目标是发现初乳的未知生物活性，并最大限度地战略性地利用初乳来刺激早期奶牛的发育和健康。研究目标将集中于确定奶牛产前因素如何影响初乳生物活性化合物的概况，特定初乳生物活性化合物如何影响犊牛发育和新陈代谢，以及在出生后第一天优化初乳使用以最大限度地提高长期健康和生产力的策略。这些目标将使干牛和初乳的生产价值最大化，并将向行业利益攸关方提供知识，以改善小牛的健康和发育，并降低目前生产动物的高发病率、死亡率和抗菌剂使用率。因此，该项目将提高消费者对加拿大乳制品行业的信任和奶牛场的经济效益，从而确保加拿大乳制品行业未来的可持续性和盈利能力。