In the Mediterranean region, artichoke and broccoli are major crops with a high amount of by-products that can be used as alternative feedstuffs for ruminants, lowering feed costs and enhancing milk sustainability while reducing the environmental impact of dairy production. However, nutritional quality of milk needs to be assured under these production conditions and an optimal inclusion ratio of silages should be determined. This work aimed to evaluate the effect of three inclusion levels (25%, 40%, and 60%) of these silages (artichoke plant, AP, and broccoli by-product, BB) in goat diets on milk yield, composition, and mineral and fatty profiles. Treatments with 60% inclusion of AP and BB presented the lowest milk yield. No differences were found on the milk mineral profile. Inclusion of AP in the animals’ diet improved the milk lipid profile from the point of view of human health (AI, TI) compared to BB due to a lower saturated fatty acid content (C12:0, C14:0, and C16:0) and a higher concentration of polyunsaturated fatty acids (PUFA), especially vaccenic acid (C18:1 trans11) and rumenic acid (CLA cis9, trans11), without any differences with the control treatment.

中文翻译：

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用不同比例的西兰花和朝鲜蓟植物副产品喂养的山羊奶的成分、矿物质和脂肪酸特征。


在地中海地区，朝鲜蓟和西兰花是主要农作物，具有大量副产品，可用作反刍动物的替代饲料，降低饲料成本并增强牛奶的可持续性，同时减少乳制品生产对环境的影响。然而，在这些生产条件下需要保证牛奶的营养品质，并应确定青贮饲料的最佳添加比例。这项工作旨在评估山羊日粮中这些青贮饲料（朝鲜蓟植物 AP 和西兰花副产品 BB）的三种添加水平（25%、40% 和 60%）对产奶量、成分和矿物质的影响和脂肪轮廓。含有 60% AP 和 BB 的处理的产奶量最低。牛奶矿物质成分没有发现差异。与 BB 相比，由于饱和脂肪酸含量较低（C12:0、C14:0 和 C16:0），从人类健康（AI、TI）的角度来看，在动物饮食中添加 AP 改善了乳脂状况）和较高浓度的多不饱和脂肪酸（PUFA），特别是异油酸（C18:1 trans11）和瘤胃酸（CLA cis9，trans11），与对照处理没有任何差异。