天气预报 > 其他 > 红剑怎么分辨是公母
红剑怎么分辨是公母
更新时间: 2020-08-16 00:00:00  

雌雄鉴别:剑尾鱼的雌雄一般不难鉴别,雄鱼体较细长,体色鲜艳,尾鳍下方有剑,各鳍的末端均较尖,最明显的是臀鳍已转化为性交接器。雌鱼体比雄鱼体肥大,体色逊于雄鱼,各鳍末端较圆钝,尾鳍下方无剑,无伸出的交接器,泄殖孔较明显。看臀鳍,细长尖的是公的,扇型和普通鱼一样的是母的剑尾鱼:红剑是通过人工选育的剑尾鱼,自然界中的原始种体色呈浅蓝绿色。剑尾鱼体似纺锤形。体强壮,易饲养,无论是弱酸性水或弱碱水都能适应,抗寒力较强。成年鱼一般7个月左右就可进行繁殖。

关键词: 怎么 分辨

红剑怎么分辨是公母相关经验

天气预报

最新推荐

页面:/news/view-3067456/ | 耗时:0.3353 s | 内存:2.11 MB | 查询:4 | 缓存读取:3 写入:0 | 加载文件:25
select * from tbl_Articles WHERE ArticleID=3067456 LIMIT 0,1
select * from tbl_Articles_data WHERE ArticleID=3067456 LIMIT 0,1
select * from tbl_Articles_sphinx where id=3067456 LIMIT 0,1
SELECT ArticleID,Title FROM tbl_Articles WHERE ArticleID IN(1072314,1048626,1048474,986394,1053224,1075526,1078354,1063151,1066622,1071661,1080130,1067613,1055149,1049062,1048158,1070888,1063283,1067901,997352,1049728,980715,1076656,1069271,1047643,1064945,1075807,997640,1062756,1043345,1068450) ORDER BY field (ArticleID,1072314,1048626,1048474,986394,1053224,1075526,1078354,1063151,1066622,1071661,1080130,1067613,1055149,1049062,1048158,1070888,1063283,1067901,997352,1049728,980715,1076656,1069271,1047643,1064945,1075807,997640,1062756,1043345,1068450)