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六月龄滩羊不同部位羊毛性状的比较

Comparison of wool traits in different parts of 6-month-old Tan sheep
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摘要 通过测定6月龄滩羊的羊毛直径、断裂强力、卷曲数及羊毛长度等性状信息,探索6月龄滩羊不同部位(肩部、腹部、后腿、臀部)羊毛性状的差异及相关性。结果表明,6月龄滩羊各部位羊毛的伸直长度、自然长度、断裂强力、羊毛直径、卷曲数均无显著差异;各部位羊毛长度均匀度较好,羊毛的伸直长度与自然长度变化趋势基本趋于一致,说明二者有一定的相关性;两型毛、无髓毛直径的变异系数为6.21%~8.02%,表明羊毛直径较稳定;两型毛的断裂强力明显大于无髓毛,说明羊毛直径与断裂强力存在较强的相关性;腹部、后腿、肩部、臀部的无髓毛卷曲数均大于两型毛,说明羊毛直径小对卷曲有利;由6月龄滩羊腹部羊毛各性状的相关性分析可知,无髓毛性状间的相关系数大多较两型毛大,可能原因是两型毛较长,易受营养和外界因素影响。 By measuring the wool diameter,breaking strength,curl number,and wool length of 6-month-old Tan sheep,the differ-ences and correlations in wool traits in different parts(shoulders,abdomen,hind legs,buttocks)of 6-month-old Tan sheep were ex-plored.The results showed that there were no significant differences in the straight length,natural length,breaking strength,wool di-ameter,and curl number of wool in different parts of the 6-month-old Tan sheep;the uniformity of the length of wool in various parts was good,and the trend of the straight length of wool was basically consistent with the natural length,indicating a certain correlation between the two;the coefficient of variation of the diameter of heterotypical fibers and unmyelinated wool was 6.21%~8.02%,indicat-ing that the diameter of wool was relatively stable;the breaking strength of the heterotypical fibers was significantly greater than that of unmyelinated fibers,indicating a strong correlation between wool diameter and breaking strength;the curls number of unmyelinated wool in the abdomen,hind legs,shoulders,and buttocks was greater than that of heterotypical fibers,indicating that a smaller diame-ter of wool was beneficial for curling;the correlation analysis of various traits of abdominal wool in 6-month-old Tan sheep showed that the correlation coefficients between unmyelinated fibers traits were mostly larger than those between the heterotypical fibers.This might be due to the longer length of the heterotypical fibers,which was easily influenced by nutrition and external factors.
作者 王军 李金芳 黄河 刘成峰 陈浩 额尔和花 WANG Jun;LI Jin-fang;HUANG He;LIU Cheng-feng;CHEN Hao;Eer Hehua(Hubei Provincial Engineering Laboratory for Clean Production and High Value Utilization of Bio-Based Textile Materials,Wuhan Textile University,Wuhan 430200,China;Institute of Animal Science,Ningxia Academy of Agriculture and Forestry Sciences,Yinchuan 750002,China)
出处 《湖北农业科学》 2024年第5期122-125,共4页 Hubei Agricultural Sciences
基金 宁夏农业育种专项(2013NYYZ0404) 国家联合基金项目(U21A20246)。
关键词 六月龄滩羊 不同部位 羊毛 性状 无髓毛 两型毛 6-month-old Tan sheep different parts wool traits unmyelinated wool heterotypical fibers
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