海南七星彩

牛蛙养殖技术手册(1)-牛蛙的人工繁殖

时间:2019-4-14

如果养殖者都是买好了牛蛙苗,那么这一步就可以省略,看看当个参考就可以

牛蛙养殖技术手册(1)-牛蛙的人工繁殖

1、ZHONGWACHIDEGOUZAO:

MIANJIYI 10?15 PINGFANGMIWEIYI,CHISHEN 1 MIZUOYOU,SHUISHEN 60?80 LIMI,YISHUINIJIEGOUWEIJIA,CHIDIKEGAODIBUPING,SHUIWEIYOUSHENYOUQIAN,SHITAIGUDINGYUYICHU,CHIZHOUWEISHEFANGTAOWANGHUOFANGTAOQIANG,CHIZHONGYANGKESHEZHIYIDINGMIANJIDELUDIHECHANLUANQU,CHANLUANQUYUEWEIZONGMIANJIDESANFENZHIYI,SHUISHENBAOCHI10 LIMI。

2、ZHONGWALAIYUANYUPEIYU:

海南七星彩XUANZETIZHONGZAI 0.5 QIANKEYISHANG,NIANLING 2 LINGYISHANGDEQINGZHUANGNIANWAZUOZHONG,CIXIONGBILIWEI 1:1,MEIPINGFANGMIFANGYANG 1 DUI,4?5 TIANHOUKAISHISHESHI。YIXUNSHIDEZHONGWA,TOUWEIPEIHESILIAO,RITOUSILVWEI 3?6%,LINCHANQIANTOUWEIYIXIEQIUYIN、YINGQU、XIAOZAYUXIADENGDONGWUXINGERLIAO。MEIXUNSHIDEZHONGWATOUWEIDONGWUXINGERLIAO,RITOUSILVWEI 5?6%,ZUIGAOKEDA 10%YISHANG。YIBANFENZAOCHENHEXIAWULIANGCITOUWEI。TONGSHIYONGHEIGUANGDENGYINYOUKUNCHONG,ZENGJIABUCHONGERLIAO。PEIYUQIJIAN,YINGKANTIANQIDEBIANHUA;BUDINGQIHUANSHUI,BAOCHISHUIZHIQINGXIN,TONGSHIYAOYOUSHIDANGDEYANGGUANGZHAOSHE,YOUQISHICHANLUANJIJIE。

3、CHANLUANFUHUAJISHU:

牛蛙产孵期在 5?9 月份,产卵可分自然产卵和人工催产两种,雌蛙催产剂量为牛蛙或青蛙脑垂体 4 个+HCG600 单位+LRH?A250 微克/斤,雄蛙剂量减半,采用一次性注射。在水温 20?30℃时,一般经 40 小时,开始抱对产卵,产卵后20?30 分钟即可轻轻捞出卵块放入孵化池孵化。孵化池以水泥池较好,面积几平方米到几十平方米,水深 20 厘米,水质要清新、无污染,池上方要遮盖好,防止水温骤变。每平方米可放卵 6000?9000粒,在水温 25?32℃、气温 20?32℃时,经两天半就可孵出蝌蝌。

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