Growth Analysis of Huanghe Carp during Two Growth Stages

To improve the growth performance of Huanghe carp, we collected data before and after winter respectively and analyzed the development mechanism. The results showed that body weight, body length, body thickness and body height increased through the winter. Body weight had the highest growth rate. In the following were body length, body height, body thickness. When body shape was investigated, body length/body thickness decreased, while no change was found about body length/body height. In addition, 3D graph tended to be concentrated and moved forward during the second growth stage. But the 3D picture adversed when body length, body height and body thickness were standardized by body weight. These results illustrated that the major growth traits rise and body shape inclined to be concentrated. The important is that body shape of Huanghe carp tended to gain in width. Such conclusion were also been approved by multiple stepwise regression construction and cluster analysis.