Laboratoire de Production Animale et Fourragère, INRAT, University of Carthage, Ariana, Tunisia.
Department of Food Technologies, INAT, University of Carthage, Tunis, Tunisia.
J Anim Physiol Anim Nutr (Berl). 2020 Sep;104(5):1294-1304. doi: 10.1111/jpn.13383. Epub 2020 May 14.
To test the hypothesis that feeding cull ewes with Rosemary (Rosmarinus officinalis L.) distillation residues (RR) and linseed improves meat quality traits; fatty acid (FA) profile, lipid oxidation, meat colour, sensory and microbiological analysis were investigated. For this, 28 Barbarine ewes received 500 g of basal diet and 700 g of concentrate. Two groups received the control concentrate (CC) with, as basal diet, straw for CCC and straw plus 200 g of RR for RCC group. The two other groups received the concentrate containing 10% of linseed (LC) with straw for CLC and straw plus 200 g of RR for RLC group. The linseed intake increased n-3 PUFA (+28.7%) and C18:3n-3(+41%) and decreased n-6/n-3 ratio from 4.55 to 3.25; while the RR diet affected only the content of branched chain fatty acid in cull ewes' meat. Feeding RR combined to linseed delayed lipid oxidation at almost ½ at Day 9 (2.38 vs. 4.63 for RLC and CLC respectively). Meat from rosemary diet had higher tenderness and lower resilience. It is concluded that the meat obtained after rosemary and linseed supply can be regarded as healthier and shows higher quality traits and greater oxidation stability under chilling storage.
为了验证这样一个假设，即给淘汰母羊喂食迷迭香（Rosmarinus officinalis L.）蒸馏残渣（RR）和亚麻籽可以改善肉质特性；对脂肪酸（FA）谱、脂质氧化、肉色、感官和微生物分析进行了研究。为此，28 只巴巴里母羊接受了 500g 基础日粮和 700g 浓缩饲料。两组接受对照浓缩饲料（CC），基础日粮为稻草，CC 组和 RCC 组分别用稻草和 200g RR 喂养。另外两组接受含有 10%亚麻籽的浓缩饲料（LC），基础日粮为稻草，CLC 组和 RLC 组分别用稻草和 200g RR 喂养。亚麻籽的摄入增加了 n-3 PUFA（+28.7%）和 C18:3n-3（+41%），降低了 n-6/n-3 比值从 4.55 到 3.25；而 RR 日粮仅影响淘汰母羊肉中支链脂肪酸的含量。RR 与亚麻籽结合喂养，在第 9 天（RLC 和 CLC 分别为 2.38 和 4.63）几乎延迟了一半的脂质氧化。迷迭香日粮的肉质更嫩，弹性更低。因此，可以认为在冷藏储存下，用迷迭香和亚麻籽喂养后获得的肉可以被认为更健康，具有更高的品质特性和更高的氧化稳定性。
