CAJ | 학술논문

为研究年龄对绒山羊产绒性能的影响，本试验对1～5岁的150只陕北白绒山羊的产绒量、绒长度及绒细度进行统计分析。结果表明：年龄与产绒量及绒毛品质密切相关；周岁羊绒细度最细（14．66±0．99μm），随年龄的增加羊绒细度变粗，5岁时达到最粗（17．09±0．46μm）；绒长在3岁时较长（7．1±0．51cm），之后小幅下降至4岁（6．06±1．27cm）后又有增加的趋势，5岁时达到8．75±1．32cm；周岁羊的产绒量最低（572．35±158．06g），5岁羊绒产量最高（887．5±131．5g）；2～3岁羊的绒纤维直径较细、绒长度居中、产绒量较高。因此，陕北白绒山羊2～3岁时生产性能和绒毛品质处于最佳阶段，可适当增加2～3岁母羊在群体中所占的比例。
위연구년령대융산양산융성능적영향，본시험대1～5세적150지협북백융산양적산융량、융장도급융세도진행통계분석。결과표명：년령여산융량급융모품질밀절상관；주세양융세도최세（14．66±0．99μm），수년령적증가양융세도변조，5세시체도최조（17．09±0．46μm）；융장재3세시교장（7．1±0．51cm），지후소폭하강지4세（6．06±1．27cm）후우유증가적추세，5세시체도8．75±1．32cm；주세양적산융량최저（572．35±158．06g），5세양융산량최고（887．5±131．5g）；2～3세양적융섬유직경교세、융장도거중、산융량교고。인차，협북백융산양2～3세시생산성능화융모품질처우최가계단，가괄당증가2～3세모양재군체중소점적비례。
The experiment aimed to study the effect of age on cashmere performance. Cashmere yield, length, fineness of 150 1-5 years old Shanbei white cashmere goat were analyzed. The results indicated that age was closely related to cashmere yield and quality. Fineness of 1-y-old goat was lowest （14. 66 ± 0. 999m）, fineness became coarse with increasing age, it reached coarsest when the goat was 5 years old （17. 09±0.46μm）; cashmere length was longer （7. 1 ±0. 51 cm）, then decreased till 4 years old （6.06±1. 27 cm）, after that it showed a increasing trend, it reached 8.75±1.32 cm when the goat was 5 years old~ cashmere yield was lowest （572.35±158.06 g） when the goat was 1 years old, it reached the highest （887.5±131.5g） when the goat was 5 years old, fiber diameter Of 2-3 years old goat was fine, length was moderate, yield was high. Hence, growth performance and cashmere quality of 2-3 years old goat were the best, based on this, it is necessary to improve the ratio of 2-3 years old goats in the group.