Abstract This study examined the effects of Origanum majorana leaf (OML) on the growth, carcass parameters and blood factors in fattening lambs. Twenty-four Kermani male lambs (initial body weight of 26 ± 0.8 kg and seven-month-old) were assigned to three dietary treatments including one control diet (OML0), and two diets containing 2 and 4 % OML (OML2 and OML4) on the dry matter basis. The diets were fed as total mixed rations for 14 weeks. At the end of the feeding period, jugular blood samples were collected and the lambs slaughtered following an overnight fast, and the carcasses dissected. The DMI was not different between treatments, but the daily weight gain, final weight and empty body weight were higher (P

中文翻译：

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牛至叶（甜马郁兰）饲喂对羔羊生长、胴体特性和血液生化参数的影响

摘要 本研究考察了牛至叶（OML）对育肥羔羊生长、胴体参数和血液因子的影响。将 24 只 Kermani 雄性羔羊（初始体重 26 ± 0.8 kg 和 7 个月大）分配到三种日粮处理中，包括一种对照日粮（OML0）和含有 2% 和 4% OML 的两种日粮（OML2 和 OML4）以干物质为基础。日粮作为总混合日粮饲喂 14 周。在饲喂期结束时，采集颈静脉血样，禁食过夜后屠宰羔羊，解剖尸体。各处理间DMI无差异，但日增重、终重和空腹重均较高（P