天气预报15天查询> 其他> 如何鉴别红龙鱼

如何鉴别红龙鱼

更新时间: 2020-07-01 00:00:00     

荷尔蒙加合成色素特征:各鳍皆会呈现出鲜红色的色泽。辨识:此法乍看之下会令人眼睛为之一亮,因为各鳍颜色会和鳞底亮度不成正比,反之会成对比。正常来说,龙鱼的底色越深(黑或绿),各鳍颜色则会更红。喂食合成色素特征:体色部分会呈现出粉红色的色泽.辨识:没有上述方法表现的鲜红色泽,但是由于各鳍或部分底部会呈现粉红之色泽,所以相当容易辨识。饥饿扬色特征:眼大头小,身体修长。发色比一般体型鱼只亮眼。辨识:一般龙鱼一年可以长至30公分左右,但是此法却可以 将之控制在20公分左右。也就是说一尾鱼龄相同的鱼。在正常饲养下可长

关键词: 如何 鉴别

如有意见、反馈、侵权或投诉等情况,请联系:

电话:
邮箱:

我们将会在48小时内给与处理!

版权所有 Copyright ? 2009-2020 tianqiyubao3.com

页面:/news/view-3308154/ | 耗时:0.8901 s | 内存:1.89 MB | 查询:4 | 缓存读取:4 写入:0 | 加载文件:23
select * from tbl_Articles WHERE ArticleID=3308154 LIMIT 0,1
select * from tbl_Articles_data WHERE ArticleID=3308154 LIMIT 0,1
select * from tbl_Articles_sphinx where id=3308154 LIMIT 0,1
SELECT ArticleID,Title FROM tbl_Articles WHERE ArticleID IN(1078226,1122120,1034501,1858573,1563170,1093396,1126620,817432,1626076,1075967,1066925,1075823,2175117,638982,230759,1856784,448512,1532553,2825241,1603318,1481703,1118467,1665865,2051066,1066390,1066334,335773,408931,1076936,1052739) ORDER BY field (ArticleID,1078226,1122120,1034501,1858573,1563170,1093396,1126620,817432,1626076,1075967,1066925,1075823,2175117,638982,230759,1856784,448512,1532553,2825241,1603318,1481703,1118467,1665865,2051066,1066390,1066334,335773,408931,1076936,1052739)