不同体色瓯江彩鲤生长动态的观察与分析  

Observation and analysis of growth dynamics in Oujiang color common carp with different pigmentation types

作　　者：朱丽艳[1] 马玉清[1] 项松平 毕详[1] 王剑 李巍[3] 王成辉[1] 

机构地区：[1]上海海洋大学农业部淡水水产种质资源重点实验室,上海201306 [2]浙江龙泉省级瓯江彩鲤良种场,浙江龙泉323700 [3]全国水产技术推广总站,北京100125

出　　处：《上海海洋大学学报》2013年第3期341-348,共8页Journal of Shanghai Ocean University

基　　金：国家自然科学基金(30972250);国家公益性[农业]科研专项(200903045);浙江省科委项目(2010C32088)

摘　　要：以瓯江彩鲤5个配套选育系完全双列杂交产生的25个组合的子一代为研究对象,利用数理统计方法对"全红"、"大花"、"麻花"、"粉玉"和"粉花"5种体色瓯江彩鲤的生长性状(体重、全长、体长、体高和体宽)进行了连续16个月的动态观察与分析。结果表明,5种体色瓯江彩鲤生长动态基本一致,呈现出"S"型生长特点,6-10月份生长极为迅速,其绝对生长率和特定生长率最高;"大花"和"粉花"两种体色瓯江彩鲤从一龄阶段起就表现出生长优势,其生长显著快于其他3种体色(P<0.05),"粉玉"体色生长速度最慢;5种体色瓯江彩鲤不同月份的体重变异系数均较大(C.V=8%～35%);各生长月份体重对试验末体重呈显著直线相关,其决定系数随生长而逐渐增大(r2=0.000 2～0.993 6,P<0.01);在二龄阶段的7月份前,各体色瓯江彩鲤在不同月份的肥满度为3.2～3.5,在7月份之后,肥满度系数逐渐增高到3.7左右,"全红"体色瓯江彩鲤的肥满度各月份均最高,而"粉花"和"粉玉"两种体色的肥满度各月份均较低。本研究结果为不同体色瓯江彩鲤进一步优化选育提供了理论依据。The hybrids derived from a complete diallel cross of the five selective strains of Oujiang color common carp （ Cyprinus carpio var. color） were used to observe and analyze developmental dynamics of five growth-related traits （ e. g. body weight （ BW）, total length （TL）, standard length （ SL）, pre-dorsal height （PDH） and pre-dorsal width （PDW） in the five pigmentation types of Oujiang color common carp, including whole red （WR）, whole red with big black spots （RB）, whole red small black spots （RS）, whole white with big black spots （WB） and whole white （WW）. The results showed that the same ＂S＂-characteristics for growth were found in the five pigmentation types of carp. The highest absolute growth rate （AGR） and special growth rate （SGR） were observed during June and October, indicating their faster growth stages during these months. The fishes of RB and WB displayed higher growth rate than fishes of the other pigmentation types from juvenile stage, but the fish of WW was the slowest in growth. The relative high coefficient of variation （ C. V = 8% - 35% ） for body weight were detected in the five pigmentation types of carp in each month. There was significant linear correlation for body weight between each previous month and last month and the determination coefficients as gradually increased as growth （ r2 = 0. 000 2 - 0. 993 6, P 〈 0.01 ）. Condition factors of the five pigmentation types of Oujiang color common carp were from 3.22 to 3.71 before July in the second-year growth stage, then gradually increased to roughly 3.7 after July. Condition factors of WR were the highest at each month, however WW and WR showed relatively low condition factors in each study month. The study provided a theoretical basis for further selective breeding of Oujiang color common carp.

关 键 词：瓯江彩鲤 配套选育系 体色 生长特性 决定系数 

分 类 号：S965.116[农业科学—水产养殖] S917[农业科学—水产科学]