不同产区河西绒山羊产绒量及羊绒品质分析  

Analysis of cashmere yield and quality of Hexi cashmere goat from different regions

作　　者：郭天芬[1,2] 李维红[1,2] 牛春娥[1,2] 杜天庆[1,2] 席斌[1,2] 常玉兰[1,2] 梁丽娜[1,2] 

机构地区：[1]中国农业科学院兰州畜牧与兽药研究所,兰州730050 [2]农业部动物毛皮及制品质量监督检验测试中心,兰州730050

出　　处：《黑龙江畜牧兽医》2013年第1期55-58,共4页Heilongjiang Animal Science And veterinary Medicine

基　　金：中央级公益性科研院所基本科研业务费专项(1610322012010)

摘　　要：为了研究不同产区河西绒山羊的羊绒产量和品质,了解羊绒品质及种质资源状况,试验在河西绒山羊的4个不同主产区分别采集羊绒样品测定个体产绒量,分析净绒率、绒纤维平均直径、绒长、断裂强力及伸长率等影响绒毛品质的主要技术指标。结果表明:1)4个产区的平均产绒量比20世纪80年代提高了2～3倍,且肃北、阿克塞、肃南产区的产绒量显著高于天祝产区(P<0.05);2)4个产区绒纤维平均直径为(16.15±2.50)μm,主体直径为15～17μm,其中天祝产区绒纤维的平均直径为(15.23±2.23)μm,显著低于其他3个产区(P<0.05)。3)平均绒长在5～6 cm之间,各产区间差异不显著(P>0.05);4)4个产区平均净绒率、纤维强力及伸长率分别为(59.19±8.95)%、(3.88±1.20)cN、(44.4±9.6)%。说明河西绒山羊经过选育之后产绒量提高,但平均绒纤维直径增大,品质下降,其优良品质性状没有得到有效保护。To investigate cashmere yield and quality of Hexi cashmere goat from different producing areas, and to know the current situation of cashmere quality and germplasm resources of Hexi cashmere goat. Individual cashmere yield were examined in four different regions, and the cashmere samples were collected to detect and analyze the main technical indexes of influencing cashmere quality, such as net cashmere rate, the average fiber diameter, fiber length, breaking strength, elongation rate and so on. The results showed ： 1 ） In four different regions, the aver-age cashmere yield increased almost three times than that in 1980s, and the cashmere yields in Subei, Axel and Sunan producing areas were significantly higher（ P 〈 0.05 ） than those in Tianzhu ; 2 ） the average cashmere diameter in the four regions were （ 16.15 ± 2.50 ） μm, and the cashmere diameters between 15 - 17 μm were dominant. Moreover, the average cashmere diameter in Tianzhu was 15.23 μm, which was sig- nificantly less than those in other three producing areas （ P 〈 0.05 ） ; 3 ） The average fiber lengths were 5 - 6 cm, with no significant differences （ P 〉 0. 05 ） in four regions ; 4 ） The average net cashmere rate, fiber strength and fiber elongation were （ 59.19 ±8.95 ） % , （3.88 ± 1.20） cN and （44.4 ± 9.6 ）% in four regions, respectively. The results indicate that the cashmere yield of the Hexi cashmere goat has been raised after breeding, but the average fiber diameter is increased, the quality is decreased, and its excellent quality traits can＇t be protected effectively.

关 键 词：河西绒山羊 不同产区 羊绒 产量 品质 

分 类 号：S827.8[农业科学—畜牧学]