养殖农虾和泥鳅哪个比较容易

养殖农虾和泥鳅哪个比较容易
2025-03-01 10:12:18
推荐回答(2个)
回答1:



哪些鱼虾品种可以进行混养呢?

1、南美白对虾与淡水白鲳混养。一般每亩投放南美白对虾苗4万尾~6万尾,投放淡水白鲳鱼种150尾~200尾,投放白鲢鱼种100尾。

2、南美白对虾与漠斑牙鲆混养。一般每亩投放南美白对虾苗4万尾~6万尾,投放漠斑牙鲆鱼种100尾~150尾,投放白鲢鱼种100尾。

3、南美白对虾与罗非鱼混养。一般南美白对虾的放养密度为4万~6万尾/亩,个体体长为0.8~1公分。选择优质鱼种,合理控制密度,一般在200~400尾/亩。


4、南美白对虾与草鱼混养。在水体盐度5以下的对虾养殖水体可选择套养一定量的草鱼,既可防控对虾病害的爆发,又可在一定程度上增加养殖效益。放养对虾虾苗密度4万~6万尾/亩,养殖2~3周时,对虾体长有2~2.5公分再放养草鱼,草鱼个体规格为平均1斤左右,放养密度为30~60尾/亩。

5、在不影响主养品种产量的基础上,每亩放黄颡鱼50尾~60尾,规格3厘米/尾~4厘米/尾,每亩增养黄颡鱼8公斤~15公斤,亩增效益可在100元以上。

饲料选择与投喂

混养鱼的数量较少时,放虾苗后的10~15天内,不投喂虾料,以混养料为主,之后逐渐增加虾料投喂量;当虾达到5g/尾左右时,按混养料:虾料1:1的比例投喂;当虾长到6.5~7g/尾时,全部投喂虾料,一般一天2~3餐。

混养鱼的数量较多时,放虾苗30天内,投喂虾料;30天~60天时逐渐增加混养料比例;60天后,完全使用混养料,一般一天2~3餐。

影响鱼类养殖效益的因素主要有三个:

1、苗期水质过肥过浓(pH值严重偏高),鱼苗成活率低,影响鱼的产量,建议下午4点左右水体pH值控制在8.8以下。

2、高温期易缺氧,高温季节、低压天气、台风暴雨时一定要开足增氧机,配备急救的增氧剂。夜晚巡塘时,要特别注意鱼群的游动情况,发现鱼群浮在离水面20-30厘米处,且游动很缓慢,是缺氧前兆,此时要开动所有增气设备,预防鱼虾缺氧浮头。



3、一定要防止水源的变质情况发生,因为水源只要一变质,鱼虾几乎都会死完的,所以说大家一定要重视这一条。特别是在高温天气的时候,我们需要注意给鱼虾进行降温,适当的遮阳就可以了。

总结:

鱼虾混养模式一定要合理的控制养殖密度和适当的投喂饲料,在高温期,一定要注意增氧,预防鱼虾缺氧浮头不能让水源变质,因为一旦变质的话,鱼虾时很容易就会死亡的。鱼虾也不适合在高温的天气下进行生存,所有我们也要适当的给鱼虾进行遮阳工作,温度保持在十八度左右是最合适的。

回答2:

可以选择泥鳅、龙虾混养模式,这种养殖模式是利用两者生长的养殖周期不同而设计的,可充分利用水体空间资源和饵料资源,做到上半年养殖龙虾,下半年养殖泥鳅,具有养殖周期短、投入资金少、收入见效快的优点。

  龙虾的养殖周期是从当年的9月份放养虾种开始,到第二年的7月份起捕完毕为止。龙虾从下塘就进入打洞和繁殖时期,基本上不在洞外活动,而此时正是泥鳅生长发育的大好时机。待进入龙虾的生长旺季和捕捞旺季的3~6月份,泥鳅正处于繁殖状态,可另塘培育。也可在龙虾池中轮养大规格的鳅种,让泥鳅在两三个月内就可以达到上市规格。

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