低蛋白含量饲料对黄鳝生长和性转变的影响  

Effects of Low Dietary Protein Level on Growth and Sex Change in Rice Field Eel,Monopterus albus Zuiew

作　　者：袁汉文[1] 郝立平 龚世园[3] 杨代勤[1] 

机构地区：[1]长江中游湿地农业教育部工程研究中心/长江大学动物科学学院,湖北荆州434025 [2]湖北信息工程学校,湖北荆门448000 [3]华中农业大学水产学院,武汉430070

出　　处：《湖北农业科学》2012年第1期139-142,共4页Hubei Agricultural Sciences

基　　金：公益性行业(农业)科研专项经费资助项目(201003076)

摘　　要：以体重为(9.86±0.82)g的黄鳝(Monopterus albus Zuiew)为试验对象,以白鱼粉和豆粕作为蛋白源,设计10%、15%、20%、25%、40%共5个蛋白水平梯度的等能饲料,探讨低蛋白含量饲料对黄鳝生长、性腺发育和性逆转的影响。结果显示,黄鳝的体重、肥满度、日增重、净增重和成活率都随着饲料蛋白含量的增加而显著增加;黄鳝的性腺指数随着蛋白水平的升高而增加。低蛋白含量饲料组中,间性和雄性比例明显高于高蛋白含量组,表明低蛋白含量饲料对黄鳝的性逆转有促进作用。Using the feed with 10%,15%,20%,25% and 40% crude protein levels,effects of low dietary protein level on growth,gonad development and sex change were investigated in Monopterua albus Zuiew with weight（9.86±0.82） g.The results showed that weight,condition factor,daily weight gain,net yield,specific growth rate and survival ratio significantly increased with the increasing of crude protein levels as well as the gonad somatic index（GSIs）.The ratios of intersexuality and male with low protein level feed were significantly higher than the high protein level feed,it suggested that low level of protein stimulate the sex change of Monopterua albus Zuiew.

关 键 词：黄鳝(Monopterus ALBUS Zuiew) 低蛋白 生长 性腺指数 性转变 

分 类 号：S917.4[农业科学—水产科学]