Hatziioannou Marianthi, Theodorou Alexandros, Apostolou Konstantinos, Kougiagka Efkarpia, Giannouli Persephoni, Karapanagiotidis Ioannis T, Sotiraki Smaragda, Exadactylos Athanasios
Department of Ichthyology and Aquatic Environment (DIAE), School of Agricultural Sciences, University of Thessaly (Uth), Fytokou Str., 38446 Volos, Greece.
Department of Biochemistry and Biotechnology, School of Health Sciences, University of Thessaly (Uth), Viopolis, 41500 Larissa, Greece.
Animals (Basel). 2025 Sep 13;15(18):2680. doi: 10.3390/ani15182680.
In countries where edible snails are a valued food source, improving snail meat quality is a priority. The aim of this study was to evaluate the effects of grape marc (GM) supplementation in the diet of , relative to production performance, animal health and quality of snail meat. GM was added in feed for snails at an inclusion rate of 0%, 7% and 14%. The results demonstrated that GM supplementation can be included in the diet of farmed snails, resulting in a slight increase in feed intake without compromising growth performance. The inclusion of GM in the diet reduces from 2480 EPG (parasites' eggs per gram of feces) after a non-enriched diet, compared to 700 EPG in the feces of snail fed supplemented diets. Nutritionally, the highest dry matter (24.14%) was observed after 14% feed enrichment. Feed enrichment improved the tenderness of boiled fillets (close to 6 N), with no color changes. Enriched diet may lead to the production of functional food which fulfils consumers' demands for high-quality products. Notably, this was the first study that used GM as a feed component in heliciculture, highlighting its potential as an alternative and sustainable dietary source.
在食用蜗牛是重要食物来源的国家，提高蜗牛肉品质是首要任务。本研究的目的是评估在蜗牛日粮中添加葡萄渣（GM）对生产性能、动物健康和蜗牛肉品质的影响。GM以0%、7%和14%的添加比例添加到蜗牛饲料中。结果表明，在养殖蜗牛的日粮中可以添加GM，这会使采食量略有增加，且不影响生长性能。与未添加GM的日粮相比，添加GM的日粮使每克粪便中寄生虫卵数从2480个降低至700个。在营养方面，饲料中GM添加量为14%时，干物质含量最高（24.14%）。饲料添加GM提高了煮制鱼片的嫩度（接近6 N），且未引起颜色变化。添加GM的日粮可能会生产出符合消费者对高品质产品需求的功能性食品。值得注意的是，这是第一项在蜗牛养殖中使用GM作为饲料成分的研究，凸显了其作为一种替代且可持续的日粮来源的潜力。
