天气预报 > 生产 > 小溪石斑鱼怎样繁殖
小溪石斑鱼怎样繁殖
更新时间: 2021-04-05 10:05:02  

1、淡水石斑鱼一冬龄就可产卵。产卵习性与罗非鱼一样会在池塘底部挖许多产卵的巢穴。产卵一般在下午,产卵后主要由雌鱼守卫受精卵。

2、雄鱼也会协同守卫,但随着胚胎发育,守卫行为愈来愈弱。卵为椭圆形,卵色呈黄暗绿色,不透明,粘性卵,卵分散排列在池底上,很少有重叠现象。体重140克的雌鱼每次产卵约为3000-4000粒,在水温26-29℃下受精卵经48小时可孵化出仔鱼。

关键词: 小溪 石斑鱼 怎样 繁殖

小溪石斑鱼怎样繁殖相关经验

天气预报

最新推荐

页面:/news/view-2426322/ | 耗时:1.0345 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=2426322 LIMIT 0,1
select * from tbl_Articles_data WHERE ArticleID=2426322 LIMIT 0,1
select * from tbl_Articles_sphinx where id=2426322 LIMIT 0,1
SELECT ArticleID,Title FROM tbl_Articles WHERE ArticleID IN(3344744,2271102,3102902,3125760,3184007,885083,3352677,2534579,416205,387090,438261,3306168,3329443,1161771,1173047,3362347,2747484,1520147,554847,372911,3526313,1115856,3321075,1209428,2146026,940817,3125368,614167,799853,1139323) ORDER BY field (ArticleID,3344744,2271102,3102902,3125760,3184007,885083,3352677,2534579,416205,387090,438261,3306168,3329443,1161771,1173047,3362347,2747484,1520147,554847,372911,3526313,1115856,3321075,1209428,2146026,940817,3125368,614167,799853,1139323)