Hu Haoyuan, Xi Yilong, Geng Hong
College of Life Science, Anhui Normal University, Wuhu 241000, China.
Ying Yong Sheng Tai Xue Bao. 2003 Apr;14(4):565-8.
The embryonic developmental period (De), pre-reproductive period (Dp), the least generation time (Tg), body size of juveniles and adults, egg volume and relative egg volume of three strain Brachionus angularis from Qingdao, Guangzhou and Wuhu were studied with Scenedesmus obliquus at 2.4 x 10(6) cells.ml-1 as the rotifers' food at 25 degrees C. We found that there were significantly different in De, Dp and Tg of three strains. De of WH strain was the top, and subsequently was GZ strain and QD strain. QD strain had the longest Dp, but GZ strain had the shortest. Tg in GZ strain was the shortest, and QD strain, and WH strain were longer, respectively, but no significantly difference existed in the later two. De tended to decrease as the relative egg volume increased in the three strains. Body size at the same stage in pre-reproductive period of three strains was significantly different. WH strain had the largest body size during all of the stages. The relationships between body size and the age of the juvenile of QD, GZ and WH strain were all curvilinear. The variance of the neonates and the adults was 244.24% in WH strain, and 182.89%, 156.28% in QD and GZ strain, respectively. The adults' body size, egg size, and relative egg size was significantly different in three strains.
以斜生栅藻（2.4×10⁶个细胞·ml⁻¹）为食物，在25℃条件下，研究了青岛、广州和芜湖三个品系的角突臂尾轮虫的胚胎发育期（De）、生殖前期（Dp）、最短世代时间（Tg）、幼体和成体的体型、卵体积及相对卵体积。结果表明，三个品系的De、Dp和Tg存在显著差异。WH品系的De最长，其次是GZ品系和QD品系。QD品系的Dp最长，而GZ品系最短。GZ品系的Tg最短，QD品系和WH品系较长，但后两者差异不显著。在三个品系中，随着相对卵体积的增加，De呈下降趋势。三个品系生殖前期相同阶段的体型存在显著差异。在所有阶段中，WH品系的体型最大。QD、GZ和WH品系的体型与幼体年龄之间的关系均为曲线关系。WH品系幼体和成体的体型差异为244.24%，QD品系和GZ品系分别为182.89%、156.28%。三个品系成体的体型、卵大小和相对卵大小存在显著差异。
