Sustainable, plant-based diets for salmonid aquaculture

鲑鱼水产养殖的可持续植物性饮食

• 批准号: 336508-2006
• 负责人: Drew, Murray
• 金额: $ 14.05万
• 依托单位: University of Saskatchewan
• 依托单位国家: 加拿大
• 项目类别: Strategic Projects - Group
• 财政年份: 2006
• 资助国家: 加拿大
• 起止时间: 2006-01-01 至 2007-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=341165
• 关键词: Sustainable; plant; based; diets; salmonid

To meet growing demands for fish products and encourage healthier diet choices by Canadians, the aquaculture industry has been growing at an annual rate of 8-10%.  Growth has brought challenges to the industry, including the need to decrease reliance on declining global supplies of fish meal as the major protein source for carnivorous fish such as salmon and trout.  Plant ingredients have potential as feed ingredients for carnivorous fish and developing this opportunity has the added benefit of creating another market for Canadian producers of crops such as soybean, canola and peas.  Unfortunately, plant ingredients cause intestinal inflammation in salmonid fish, which has a negative impact on fish growth and health. The negative effects of plant ingredients on salmonid fish may be due to direct interactions of ingredients with the intestine or they may be indirect effects, resulting from feed ingredients causing changes in the complex intestinal microbial community that in turn affect intestinal physiology.  By studying the effects of various individual plant ingredients and mixtures on fish growth, intestinal health and the intestinal microbial community, components of the ingredients responsible for the negative effects can be identified and insight gained into the mechanisms responsible. Results of this work will determine the type and degree of processing of plant ingredients required to reduce their negative impact on fish growth and health.  An understanding of the mechanisms at work in the interaction between diet composition and intestinal health will lead to the formulation of improved, sustainable diets for the aquaculture industry and in the future selection and formulation of diets including new plant ingredients.

为了满足加拿大人对鱼类产品日益增长的需求，并鼓励他们选择更健康的饮食，水产养殖业一直以每年8- 10%的速度增长。增长给该行业带来了挑战，包括需要减少对全球鱼粉供应量下降的依赖，鱼粉是鲑鱼和鳟鱼等肉食性鱼类的主要蛋白质来源。开发这一机会的额外好处是为加拿大大豆、油菜和豌豆等农作物生产商创造另一个市场。不幸的是，植物成分会导致鲑鱼肠道炎症，对鱼类生长和健康产生负面影响。植物成分对鲑鱼的负面影响可能是由于成分与肠道的直接相互作用，也可能是间接影响，因为饲料成分导致复杂的肠道微生物群落发生变化，进而影响肠道生理。通过研究各种植物成分和混合物对鱼类生长，肠道健康和肠道微生物群落的影响，可以识别造成负面影响的成分成分，并深入了解造成负面影响的机制。这项工作的结果将确定植物成分的加工类型和程度，以减少其对鱼类生长和健康的负面影响。对饮食组成和肠道健康之间相互作用的机制的理解将导致为水产养殖业制定改进的，可持续的饮食，并在未来选择和制定饮食，包括新的植物成分。