Regulation of Gastrointestinal Growth and Function

胃肠道生长和功能的调节

• 批准号: RGPIN-2016-05543
• 负责人: Steele, Michael
• 金额: $ 2.04万
• 依托单位: University of Alberta
• 依托单位国家: 加拿大
• 项目类别: Discovery Grants Program - Individual
• 财政年份: 2017
• 资助国家: 加拿大
• 起止时间: 2017-01-01 至 2018-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=630823
• 关键词: Regulation; Gastrointestinal; Growth; Function

There are over 15 million ruminants in Canada producing milk and meat, which contributes over 40 billion dollars to Canada’s economy. The ruminants raised on approximately 50,000 farms throughout Canada follow the highest standards of animal welfare, however gastrointestinal diseases and disorders in young and mature stock are still a serious threat to animal welfare and the profitability of agriculture. During the first week of life, ruminants are born as functional mongastrics, and the rumen remains non-functional until the introduction and consumption of feedstuffs such as grains and forages. The process of transition from their neonatal reliance on nutrients supplied from milk to nutrients supplied from grain and forages is of important economic and animal welfare significance to ruminant producers, as improvements to ruminant nutritional regimes in early life can decrease mortality and disease susceptibility, as well as increase weight gain and milk production.

加拿大有1500多万只反刍动物生产牛奶和肉类，为加拿大经济贡献了400多亿美元。在加拿大大约50,000个农场中饲养的反刍动物遵循动物福利的最高标准，然而，幼畜和成熟家畜的胃肠疾病和紊乱仍然严重威胁着动物福利和农业的盈利能力。在出生后的第一周，反刍动物的瘤胃是功能性的，在引入和食用谷物和牧草等饲料之前，瘤胃一直处于非功能性状态。对反刍动物养殖者来说，从新生儿依赖牛奶提供的营养向谷物和牧草提供的营养过渡的过程具有重要的经济和动物福利意义，因为改善反刍动物早期的营养状况可以降低死亡率和疾病易感性，并增加体重和产奶量。