Cabrita Ana R J, Guilherme-Fernandes Joana, Valente Inês M, Almeida Agostinho, Lima Sofia A C, Fonseca António J M, Maia Margarida R G
REQUIMTE, LAQV, ICBAS, Instituto de Ciências Biomédicas Abel Salazar, Universidade do Porto, Rua de Jorge Viterbo Ferreira 228, 4050-313 Porto, Portugal.
REQUIMTE, LAQV, Departamento de Química e Bioquímica, Faculdade de Ciências, Universidade do Porto, Rua do Campo Alegre 687, 4169-007 Porto, Portugal.
Animals (Basel). 2022 Oct 1;12(19):2643. doi: 10.3390/ani12192643.
The growing pet population is questioning the sustainability of the pet food system. Although microalgae may constitute a more sustainable food resource, the assessment of their potential for canine diets is almost non-existent. The present study aimed to evaluate the potential of three microalgae species (, and ) grown locally in industrial photobioreactors as alternative food resources for dogs. A detailed characterization of their nutritional composition and metabolomic profile was carried out and related to the nutritional requirements of dogs. Overall, the essential amino acid content exceeded the amounts required for dogs at all life stages, except methionine and cysteine. The three microalgae were deficient in linoleic acid, presented a linolenic acid content below requirements and and were deficient in arachidonic and eicosapentaenoic acids. The fiber was mainly composed of insoluble dietary fiber. The mineral profile varied greatly with the microalgae species, demonstrating their different potential for dog feeding. Untargeted metabolomics highlighted glycolipids, glycerolipids and phospholipids as the most discriminating compounds between microalgae species. Overall, the results support the potential of , and as valuable macro- and micro-nutrients sources for dog feeding.
不断增长的宠物数量对宠物食品系统的可持续性提出了质疑。尽管微藻可能构成一种更具可持续性的食物资源，但几乎不存在对其用于犬类饮食潜力的评估。本研究旨在评估在工业光生物反应器中本地培养的三种微藻物种（、 和 ）作为犬类替代食物资源的潜力。对它们的营养成分和代谢组学特征进行了详细表征，并与犬类的营养需求相关联。总体而言，除蛋氨酸和半胱氨酸外，必需氨基酸含量在所有生命阶段均超过犬类所需量。这三种微藻缺乏亚油酸， 的亚麻酸含量低于需求，而 和 缺乏花生四烯酸和二十碳五烯酸。纤维主要由不溶性膳食纤维组成。矿物质分布因微藻物种而异，表明它们在犬类喂养方面具有不同的潜力。非靶向代谢组学突出了糖脂、甘油脂和磷脂是微藻物种之间最具区分性的化合物。总体而言，结果支持 、 和 作为犬类喂养有价值的常量和微量营养素来源的潜力。
