不同浓度药物与不同天数鱼苗对吉富罗非鱼雌性诱导效果的影响  

Effect of Different Concentration Drug and Different Days Fry on Female Sex-reversal of Gift tilapia

作　　者：李莉萍[1] 林勇[1] 朱佳杰[1] 甘西[1] 

机构地区：[1]广西水产研究所,广西南宁530021

出　　处：《安徽农业科学》2011年第6期3627-3629,共3页Journal of Anhui Agricultural Sciences

基　　金：现代农业产业技术体系建设专项资金;2008年广西壮族自治区公益性科研院所基本科研业务费专项资金(2060302GXIF-2008-04)

摘　　要：[目的]研究不同浓度药物(苯甲酸雌二醇)与鱼苗天数对吉富罗非鱼雌性诱导效果的影响。[方法]将苯甲酸雌二醇设置6个浓度0、80、90、100、110、120μg/g,分别对卵黄囊刚吸收完的第0天、第5天、第10天吉富罗非鱼苗进行雌性诱导1个月,再饲养至体长16cm时,统计雌性率。[结果]不同天数鱼苗,在6个浓度药物作用下,组内雌性诱导效果均差异极显著(P<0.01)。其中第0天鱼苗以120μg/g浓度药物,诱导效果最好,平均雌性率67.24%;第5天、第10天鱼苗分别以100、90μg/g浓度药物,诱导效果最好,平均雌性率为56.58%、24.83%。相同药物浓度下,第0天、第5天、第10天鱼苗间,雌性诱导效果差异极显著(P<0.01),其中以第0天诱导率最高。[结论]对第0天吉富罗非鱼苗,以浓度为120的药物进行雌性诱导,效果最好。[Objective] To study the effect of different concentration drug（estradiol benzoate）and different days fry on female sex-reversal of gift tilapia.[Method]The fry of 0,5,10 days was feed by estradiol benzoate in concentration of 0,80,90,100,110,120 μg/g for a month.When the fry grew into 16 cm,the female percent was counted.[Result]The effect of female sex-reversal of same days fry was significantly different by different concentration drug（P0.01）.The highest female rate about 67.24% was obtained by 0 day fry feed in 120 μg/g drug.The highest female rate was 56.58%,24.83 of 5,10 days fry feed in drug of 100,90 μg/g concentration.The effect of female sex-reversal of 0,5,10 days fry was significantly different by feeding drug in same concentration（P0.01）.And the highest female rate was obtained on 0 day fry.[Conclusion] The best female sex-reversal could be caused by 120 μg/g drug on 0 day fry.

关 键 词：吉富罗非鱼 雌性诱导 药物浓度 天数 

分 类 号：S962[农业科学—水产养殖]