蒙古斑点马年龄、性别与体尺指标的相关性研究

Correlation between Age, Sex and Body Size Index in Mongolian Spotted Horses

本实验旨在探索蒙古斑点马体尺指标与其年龄和性别的关系,对锡林郭勒盟地区60匹不同年龄阶段蒙古斑点马进行体尺测定及资料分析。结果表明:蒙古斑点马的年龄和性别对体尺指标有显著影响。成年马和老年马的体长、体高、胸围都高于青年马(PA<0.05),管围没有显著差异;公马的体高、胸围、管围高于母马(PS<0.05),性别对蒙古斑点马的体长没有影响(PS=0.1298);蒙古斑点马的年龄和性别对体尺指标的影响没有互作效应(PA*S>0.05)。综上,马匹体高、体长、胸围、管围、体重等体尺指标是可以直接反映马匹生长发育以及生产能力的可定量指标,也是决定一个马种生产性能和利用方向的指标之一,因此对蒙古斑点马年龄、性别与体尺指标的关系进行分析对蒙古斑点马品种的培育及选育工作有重大意义。

This experiment provides basic data for the Mongolian spotted horse breeding program by analyzing the relationship between the body size index and its age and gender,and trying to cultivate a new Mongolian horse breed.The body size indexes of 60 Mongolian spotted horses at different ages in Xilin Gol League were analyzed.The results showed that the age and sex of Mongolian spotted horse had significant effects on the Mongolian spotted horse body size index.The body length,height and chest circumference of adult and aged horses were significantly higher than those of young horses(PA<0.05),but there was no significant difference in tube circumference(PA=0.2504).The body height,chest circumference and tube circumference of the stallion were significantly higher than that of the mare(PS<0.05),and gender had no effect on the body length of the Mongolian spotted horses(PS=0.1298).There was no interaction effect between the age and sex of Mongolian spotted horses on body size indicators(PA*S>0.05).It can be concluded that there is no interaction between the age and sex of Mongolian spots,and among the regular young,adult and aged horses,male are taller than the female.There is a significant positive correlation between the individual body size indexes,and the body height,chest circumference and tube circumference increase with body length.Therefore,it is possible to roughly distinguish the horse age according to the body size index.