天气预报 > 其他 > 虾米怎样繁殖
虾米怎样繁殖
更新时间: 2020-07-04 00:00:00  

1、亲虾培育。选择体质健壮、无病无伤、规格为20至50克、雌雄比为一比一的100对虾作为亲虾,选后的亲虾饲养在覆盖有玻璃钢瓦和供热加温系统的水泥池中,每天按在池虾体重的百分之十投喂新鲜剪碎的“龙虾”头。(12小时光照,12小时黑暗)。

2、交配与产卵。4月下旬亲虾开始交配产卵。红螯螯虾的交配是软壳交配,交配前雌虾要进行生殖蜕壳,在雄师产出精子的12小时内雌虾开始产卵。雌虾产出的卵受精后为深黄色,粘附在腹足以及尾扇向内卷曲形成的空腹内。

3、胚胎发育。红螯螯虾的受精卵为深黄色,

关键词: 虾米 怎样 繁殖

虾米怎样繁殖相关经验

天气预报

最新推荐

页面:/news/view-3038200/ | 耗时:0.3717 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=3038200 LIMIT 0,1
select * from tbl_Articles_data WHERE ArticleID=3038200 LIMIT 0,1
select * from tbl_Articles_sphinx where id=3038200 LIMIT 0,1
SELECT ArticleID,Title FROM tbl_Articles WHERE ArticleID IN(116602,108421,120783,1056396,142544,125268,1489432,109472,134123,2362906,136009,112750,128725,121951,130118,2741661,1103440,111393,110922,118879,121565,2982791,210192,135285,2932560,113508,135981,122293,120097,136479) ORDER BY field (ArticleID,116602,108421,120783,1056396,142544,125268,1489432,109472,134123,2362906,136009,112750,128725,121951,130118,2741661,1103440,111393,110922,118879,121565,2982791,210192,135285,2932560,113508,135981,122293,120097,136479)