摘要
为补充亚成体林麝(Moschus berezovskii)泌香量、麝香质量性状数据,分析年龄与麝泌香量时空效应.采集88只林麝(1.7~14.7岁)各年龄组泌香量数据,随机对亚成体年龄群中10只麝麝香分泌量及色泽、形状进行观察和记录.结果显示,亚成体麝泌香量呈常态分布(W=0.855,P=0.066>0.05),取值范围为6.20 g~16.50 g,平均泌香量(9.40±3.311)g/只,变异系数达35.223%,低产香麝占70%、中产麝占20%、高产麝占10%;深棕色麝香占30%、棕色占50%、浅棕色和褐色均占10%,干粉状占30%、粉状占60%、干泥状占10%,泌香量与色泽、形状间均无明显关联(P>0.05);构建年龄与泌香量的曲线模型拟合度较高(R2=0.835 8)、年龄与泌香量间呈显著负相关(r=-0.646,P=0.017<0.05).综上所述,观测群亚成体林麝泌香量相对偏低、离散度和选育潜力较大,麝香多呈棕色与粉状、质量较优,泌香量与色泽、形状无关联;麝群泌香量随年龄呈快速提升,至峰值、高峰期震荡式小幅下降、7.7岁后显著下降,至8.7岁后小幅提升又再次快速下降的趋势特征.
Abstract
To supplement the musk yield and quality traits of sub-adult forest musk deer(Moschus berezovskii),we analyzed the spatio-tem-poral response relationship between age and musk yield.The average musk yield of 88 forest musk deer at different ages(1.7~14.7 years old)was collected individually;the yield,color and shape of musk from 10 forest musk deer in the sub-adult age group were observed and recorded.The results showed that musk yield of sub-adult musk deer was normally distributed(W=0.855,P=0.066>0.05),with a rang from 6.20 g to 16.50 g,and the average musk yield was(9.40±3.311)g,which varied greatly(CV=35.223%);low musk yield individuals was 70%,medium yield individuals was 20%,high yield individuals was 10%.Dark brown musk was 30%,brown musk was 50%,light brown and tan musk were respectively 10%,dry powder was 30%,powdery musk was 60%,dry mud musk was 10%,there were no sig-nificant difference between musk yield and color,shape(P>0.05).A curve regression model curve regression model with high fitting degree(R2=0.83 5 8)was established,there was a significant negative correlation(r=-0.646,P=0.017<0.05).In summary,the musk yield of sub-adult forest musk deer was relatively lower,high dispersion and breeding potential,and the musk was mostly brown and powdery with better qual-ity,the musk yield had no correlation with color and shape.The musk yield showed a trend of rapid increase to peak with age,a small oscillatory decrease during the peak period,a significant decrease after 7.7 years old,and a small increase and then a rapid decrease again after 8.7 years old.