Growth and Development of Larvae and Juveniles of Carassius auratus gibelio

作     者：Liang Zhengqi Yao Junjie Xiong Hualong An Miao Huang Shihong 

作者机构：Key Laboratory of Special Wildlife Resources in Fanjing MountainDepartment of Bioscience and ChemistryTongren University Department of Animal SciencesGuizhou University Puan Fishery Bureau 

出 版 物：《Animal Husbandry and Feed Science》 (动物与饲料科学（英文版）)

年 卷 期：2014年第6卷第3期

页      面：113-117页

学科分类：090801[农学-水产养殖] 0908[农学-水产] 09[农学] 

基　　金：Supported by Key Laboratory of Special Wildlife Resources in Fanjing Mountain(QJH KY005) Innovative Talent Team for Protection and Useof Special Wildlife Resources in Fanjing Mountain(QJHRCTD08) 

主　　题：Carassius auratus gibelio Larva Juvenile Growth Development 

摘      要：The growth and development of larvae and juveniles was morphologically investigated in Carassius auratus gibelio. The results showed that it took 52 h from fertilization to hatching at 22 - 25℃. The newly hatched larvae had transparent body, with the head fight near the yolk sac; the yolk sac accounted for 2/3 of larval volume, which was exhausted in the four-day-old larvae that started the exogenous nutrient period. The larvae were found to develop into juveniles from a few scales on the 20^th day after hatching to whole scales, fingerling, on the 28^th day after hatching. The relationship between total length（TL） and age in days（D） was described as ： TL = 0.001 2D3 - 0. 038 8/32 ＋ 1.043 2D ＋ 3. 945 8 （ r^2 = 0.998 ）. The relationship between body length （L） and body weight （W） of larvae and juveniles was expressed as： m = 1E -05L^3.3769（ r^2 = 0.982 7）. The formula between body length and body height during the development of the fish was described as ： H = 0.0（30 1L3 -0. 028 4L2 ＋ 1. 281 6L -7. 250 5 （ r^2 = 0. 988 6）. The findings provided the theoretical instruction for practical production of C. auratus gibelio.