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Seaweed meal as a high value nutrient supplement in aquafeeds

海藻粉作为水产饲料中的高价值营养补充剂

基本信息

批准号：
492071-2015
负责人：
Kamunde, Collins
金额：
$ 1.82万
依托单位：
University of Prince Edward Island
依托单位国家：
加拿大
项目类别：
Engage Grants Program
财政年份：
2015
资助国家：
加拿大
起止时间：
2015-01-01 至 2016-12-31
项目状态：
已结题

来源：
https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=587182
关键词：
Seaweed meal value nutrient supplement

项目摘要

Due to increasing cost and uncertain supply of fishmeal and fish oil, there is a need to identify alternative sources of protein and other nutrients in aquafeeds. Important considerations in the selection of ingredients for aquafeeds include amino acid and fatty acid composition, digestibility, palatability, availability, and processing costs. Although seaweeds have the potential for use in animal feed because they generally meet the selection criteria, they have not been incorporated in commercial aquafeeds. Our industry partner, Cana-add Inc., is interested in supplementing fish food with seaweed meal to reduce fishmeal use, increase productivity and enhance resistance of fish to diseases and environmental stress. Cana-add Inc. would also like to know if fortifying seaweed meal with amino acids improves its beneficial effects in fish. The objectives of the proposed research are therefore to (i) identify the optimal inclusion rate of locally available brown seaweeds (kelp) in Atlantic salmon feed, (ii) assess if fortification with glutamate and arginine improves the beneficial outcomes of seaweed meal supplementation in salmon feed, (iii) assess if salmon raised on feed supplemented with seaweed meal and fortified with amino acids are more resistant to environmental stress, and (iv) assess the effect of seaweed meal supplementation on energy metabolism and immunity. Cana-add Inc. will use the information generated in this study to formulate and commercialize salmon feed supplemented with seaweed meal to improve productivity and boost stress/disease resistance.

由于鱼粉和鱼油的成本不断增加且供应不确定，因此需要寻找替代品水产饲料中蛋白质和其他营养物质的来源。选择原料时的重要考虑因素水产饲料包括氨基酸和脂肪酸组成、消化率、适口性、可用性和加工成本。尽管海藻具有用于动物饲料的潜力，因为它们通常符合选择根据标准，它们尚未纳入商业水产饲料中。我们的行业合作伙伴 Cana-add Inc. 是有兴趣用海藻粉补充鱼食以减少鱼粉的使用、提高生产力和增强鱼类对疾病和环境压力的抵抗力。 Cana-add Inc. 还想知道是否用氨基酸强化海藻粉可以提高其对鱼类的有益效果。拟议的目标因此，研究的目的是 (i) 确定当地可用的棕色海藻（海带）在大西洋鲑鱼饲料，(ii) 评估谷氨酸和精氨酸强化是否可以改善有益结果鲑鱼饲料中添加海藻粉的研究，(iii) 评估使用添加了海藻粉的饲料饲养的鲑鱼海藻粉和氨基酸强化更能抵抗环境压力，并且 (iv) 评估海藻粉补充剂对能量代谢和免疫力的影响。 Cana-add Inc. 将使用本研究中产生的信息用于配制添加海藻的鲑鱼饲料并将其商业化膳食可提高生产力并增强压力/疾病抵抗力。