关键词: 高原灰尾兔, 骨髓幼红细胞, 费莱特直径

Abstract: We have measured the diameters of marrow red cells of Lepus oiostolus under elec tronmicros-cope which lived in GuoLuo grass-lands. The results showed that, the average diameters of proerythroblast, early erythroblast, media erythroblast of this Lepus oiostolus were larger than those of plain rabhits. The average diameters of the proergthroblast of the rabhits which immigratted to plateau for eight weeks were apparent larger than those of Lepus oiotolus and plain rabbits. The diameters of every period of red cells of Lepus oiostolus: proerythroblast was 12.73 ± 1.12um; early erythroblast was 10.17 ±1.74um;mediate erythroblast was 7.93 ± 2.47um;late erythroblast was 4.20 ± 0.46um. The results revealed that marrow cells were younger, the diameters were larger. During erythrogenisis, the degree of decreased diameters became large. This phenominia was more apparent at the mature peried of mediate erythroblast or late erythroblast.