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我国湖北钟祥罗汉寺种羊场饲养的新西兰罗姆尼羊,在自繁过程中,少数个体后代,出现了一些地毯型变种羊,其外貌特征、羊毛长度、被毛纤维类型、细度和净毛率等都发生了显著变异,与亲代有着明显区别:(1)外貌特征与德拉斯代(Drysdale)相似,但无角.(2)羊毛长度公羊26.5cm.母羊25cm,比亲代罗姆尼高43.05%和45.01%.(3)被毛纤维类型由绒毛、两型毛、有髓毛和少数干死毛组成,不同于亲代的同质半细毛.(4)变种羊的羊毛纤维直径变幅很大(24.11～52.06)与亲代有明显区别.(5)变种羊生产的羊毛净毛率比较高,公羊为70.12%,母羊为75.82%,比亲代分别高6.75%和5.72%.以上主要性状可与世界著名地毯羊 Drysdale 媲美.
In New Zealand Romney sheep breeding in Luohan Temple, Zhongxiang, Hubei Province, China, there appeared some varieties of carpet-type sheep during the process of self-propagation. The appearance, wool length, the types and the fineness of the fibers (1) The appearance is similar to that of Drysdale, but there is no horn. (2) The length of the wool is 26.5cm in ram and 25cm in ewes, Romney was 43.05% and 45.01%, respectively. (3) Coat fiber types consisted of villi, two types of hair, medulla and few dry hair, different from the same type of semi-fine hairs. (4) There was a significant difference between the fiber diameter and the parents (24.11 ~ 52.06). (5) The net wool yield of mutton sheep was higher with 70.12% of rams, 75.82% of ewes and 6.75% of that of parents 5.72% .The above main traits can be compared with the world famous carpet sheep Drysdale.