Colonna Maria Antonietta, Karatosidi Despoina, Cosentino Carlo, Freschi Pierangelo, Carbonara Claudia, Giannico Francesco, Losacco Caterina, Tufarelli Vincenzo, Tarricone Simona, Selvaggi Maria, Ragni Marco
Department of Soil, Plant and Food Science, University of Bari Aldo Moro, Via Amendola 165/A, 70125 Bari, Italy.
Research Institute of Animal Science, Hellenic Agricultural Organization-DIMITRA, 58100 Giannitsa, Greece.
Animals (Basel). 2023 Sep 28;13(19):3050. doi: 10.3390/ani13193050.
Extruded linseed () in ruminant diets has been investigated as a strategy to improve the nutritional value and healthiness of meat fat; however, increased polyunsaturated fatty acids may limit the shelf-life of meat. Oregano () has a documented antioxidant activity. The aim of the study was to investigate the effects of dietary supplementation with extruded linseed and oregano on goat milk quality and whether the characteristics of goat milk affect the physical and chemical features, fatty acid profile, meat lipid oxidation, and sensory properties of meat from suckling kids. Thirty-six male kids were weaned and divided into three homogeneous groups ( = 12); each group was either fed a control diet (C), or a diet containing 3% extruded linseed with or without the addition of 0.6% oregano ("L + O" and "L", respectively). The diets containing linseed lowered ( < 0.05) the saturated fatty acid content in meat, and increased ( < 0.05) monounsaturated and polyunsaturated fatty acids and conjugated linoleic acid. Oregano addition to the linseed diet proved to be effective in preserving meat shelf-life, as shown by a significant ( < 0.01) reduction in the malondialdehyde concentration after 10 days of storage, and improved meat succulence, tenderness, juiciness, and overall acceptance.
反刍动物日粮中的挤压亚麻籽已被作为一种提高肉脂营养价值和健康程度的策略进行研究;然而,多不饱和脂肪酸含量的增加可能会限制肉的保质期。牛至具有已被证实的抗氧化活性。本研究的目的是调查日粮中添加挤压亚麻籽和牛至对山羊奶品质的影响,以及山羊奶的特性是否会影响哺乳羔羊的肉的物理和化学特性、脂肪酸组成、肉的脂质氧化及感官特性。36只雄性羔羊断奶后被分为三个同质组(每组n = 12);每组分别饲喂对照日粮(C),或含有3%挤压亚麻籽且添加或不添加0.6%牛至的日粮(分别为“L + O”和“L”)。含亚麻籽的日粮降低了(P < 0.05)肉中饱和脂肪酸的含量,并增加了(P < 0.05)单不饱和脂肪酸、多不饱和脂肪酸和共轭亚油酸的含量。在亚麻籽日粮中添加牛至被证明对延长肉的保质期有效,储存10天后丙二醛浓度显著降低(P < 0.01),并改善了肉的多汁性、嫩度、多汁程度及总体可接受性。