Yagoubi Yathreb, Smeti Samir, Mekki Ilyes, Bertolín Juan Ramón, Ripoll Guillermo, Joy Margalida, Mahouachi Mokhtar, Atti Naziha
University of Carthage, INRA-Tunisia, Animal and Forage Productions Laboratory, 2049 Ariana, Tunisia.
Centro de Investigacion y Technologia Agroalimentaria (CITA) de Aragón - IA2, Universidad de Zaragoza, Avda. Montañana, 930, 50059 Zaragoza, Spain.
Arch Anim Breed. 2020 Nov 28;63(2):431-439. doi: 10.5194/aab-63-431-2020. eCollection 2020.
The rosemary distillation industry produces a considerable amount of rosemary distillation residues (RRs), which can be an alternative for feeding animals in harsh conditions and could enhance animal product quality. Given the meat quality is largely influenced by its fat content and fatty acid composition, the fatty acid (FA) profiles of longissimus thoracis et lumborum (LTL), semi-membranous (SM) muscles, and caudal (CFs) and omental fats (OFs) were determined using 21 Barbarine lambs fed with or without RRs. Diets contained 600 g of concentrate plus 600 g of forage. Forage represented oat hay, RR87 and RR60 pellets containing 87 % or 60 % of RR, respectively. At the end of the study, all lambs were slaughtered, and the fatty acid profile was studied. The inclusion of RR increased the polyunsaturated fatty acid (PUFA) contents and reduced saturated fatty acids (SFAs), and the thrombogenic and saturation indexes in all tissues. The SM muscle was the richest tissue in PUFAs, -3 and -6; however, both adipose tissues contained the highest proportions of SFAs. Especially the OF was the richest tissue in oleic acid and SFAs. Feeding RR to lambs enhanced meat quality.
迷迭香蒸馏行业会产生大量的迷迭香蒸馏残渣（RRs），在恶劣条件下，这些残渣可作为动物饲料的替代品，并且能够提高动物产品质量。鉴于肉质在很大程度上受其脂肪含量和脂肪酸组成的影响，因此，研究人员使用21只饲喂或未饲喂RRs的巴巴里绵羊，测定了其胸腰最长肌（LTL）、半膜肌（SM）以及尾部脂肪（CFs）和网膜脂肪（OFs）的脂肪酸（FA）谱。日粮包含600克精饲料加600克草料。草料为燕麦干草、分别含有87%或60% RR的RR87和RR60颗粒饲料。在研究结束时，屠宰所有羔羊，并对脂肪酸谱进行研究。添加RR可提高所有组织中的多不饱和脂肪酸（PUFA）含量，降低饱和脂肪酸（SFA）、血栓形成和饱和指数。SM肌是PUFA、ω-3和ω-6含量最丰富的组织；然而，两种脂肪组织中SFA的比例最高。尤其是OF，是油酸和SFA含量最丰富的组织。给羔羊饲喂RR可提高肉质。
