饲料组合投喂对白神仙幼鱼生长和体色的影响比较  

Effects of different diets on the growth and skin color of white angelfish(Pterophyllum scalare)fry

作　　者：兰帅勤 李东霖 陈煜 毛晶 尹泽 VASQUEZ HerbertEly 於锋 郑兴[1,2,3,4] 顾志峰[1,2,3,4] LAN Shuaiqin;LI Dongling;CHEN Yu;MAO Jing;YIN Ze;VASQUEZ HerbertEly;YU Feng;ZHENG Xing;GU Zhifeng(School of Marine Biology and Aquaculture,Hainan University,Haikou,Hainan 570228,China;Engineering research center of Hainan Province for Freshwater fishery,Hainan University,Haikou,Hainan 570228,China;Sanya Institute of Breeding and Multiplication,Hainan University,Sanya,Hainan 572000,China;Hainan Key Laboratory of Tropical Hydrobiological Technology,Hainan University,Haikou,Hainan 570228,China)

机构地区：[1]海南大学海洋生物与水产学院,海口570228 [2]海南大学淡水渔业海南省工程研究中心,海口570228 [3]海南大学三亚南繁研究院,三亚572000 [4]海南大学海南省热带水生生物技术重点实验室,海口570228

出　　处：《热带生物学报》2024年第3期354-360,共7页Journal of Tropical Biology

基　　金：海南省自然科学青年基金(320QN207);海南大学科研启动基金[KYQD(ZR)20061];海南省院士创新平台项目。

摘　　要：投喂管理是鱼类育苗及养殖的关键技术之一,对种苗的存活、生长和后期发育有着重要影响。为提高白神仙鱼幼鱼阶段的投喂管理及体色变化认知,通过微颗粒饲料(M)、微颗粒饲料+卤虫无节幼体混合饲料(MA)、卤虫无节幼体+鱼粉混合饲料(AF)3种不同饲料组合进行投喂管理,对淡水白神仙幼鱼生长过程的存活率、生长性能和体色特征进行比较分析。结果表明:(1)3种不同饲料组合幼鱼存活率均高于82%,MA组显著高于M组和AF组(P <0.05)。(2)M组和MA组体质量、体长、增重率、特定生长率显著高于AF组(P <0.05)。(3)幼鱼体表不同部位的颜色特征值具有一定规律性:明度值(L^(*))方面,其大小顺序为腹部中央>鳃盖后缘>后背部;红度值(a^(*))方面,其大小顺序为鳃盖后缘>腹部中央>后背部;黄度值(b^(*))方面,其大小顺序为后背部>腹部中央>鳃盖后缘。(4)卤虫无节幼体的投喂会影响幼鱼体表的黄度特征值的变化。上述结果表明,在白神仙鱼幼鱼养殖的适当阶段使用卤虫无节幼体,可提高其生长性能和强化体色。As one of the key techniques in fry fish rearing,feeding management affects survival,growth and development of the fry.An attempt was made to analyze the effect of the feeding management on the growth and body color change of the fry of white angelfish.The fry of white angelfish(Pterophyllum scalare)were fed with three combinations of foods,including commercial microcapsule feed(M group),microcapsule feed with Artemia sp.nauplii(MA group)and fishmeal feed with Artemia sp.nauplii(AF group).The survival,growth and body color of the white angelfish fry fed with different food combinations were analyzed and compared.The results showed that the survival rates in all the groups were more than 82%,where the MA group was significantly higher than the M and AF groups(P<0.05).The body weight,length,weight gain rate and specific growth rate were significantly higher in the MA group than in the AF group(P<0.05).The regularity was observed in the body color of different body position in each group with the lightness(L^(*))being in the order of“abdomen>operculum>lower back”,the red tonality(a^(*))being in the order of“operculum>abdomen>lower back”and the yellow hue(b^(*))in the order of“lower back>abdomen>operculum”.Feeding Artemia sp.nauplii could affect the yellow hue(b*)of P.scalare fry during rearing.The proper use of Artemia sp.nauplii to feed the white angelfish at the right stage of fish rearing helps to improve the growth performance and enhance the ornamental character of the fish body color.

关 键 词：神仙鱼 幼鱼 生长 体色 

分 类 号：S965[农业科学—水产养殖]