Shrimp fry stocking: 50-65438+100000 per mu, with specifications of 1.5 cm or more, suitable time of June-July, 20-25 kg per mu, specifications of1000-/600/kg, and suitable time.
Silver carp fry cultivation: 80 ~ 100 silver carp fry are cultivated in each mu of shrimp pond, and 200 silver carp fry are cultivated in each mu. Silver carp fry are released after 5 days of shrimp fry10 ~/kloc-0, so as to ensure that shrimp fry can eat organisms.
Extended data:
Shrimp fry counting method
1. The measuring cup method uses a plastic cup with a height of about 5 cm and a diameter of about 1.5cm, holes are punched in the bottom, and then the counting measuring cup is made by a 40-mesh sieve. Then, slowly lift the small box and let the shrimps concentrate in a corner. Scoop up the seedlings in a smooth shrimp bag and pour them into a cup. Then pour the shrimp seedlings into a small basin with water and count them, and then you can count the seedlings.
2. Gravimetric method, that is, a small amount of shrimp 10-20g is randomly taken, weighed and quantified after 2-3 times. In operation, a small amount of water is used for weighing, then shrimp fry are put in for weighing, after determining the weight of shrimp fry, counting is carried out, and after determining the mantissa of unit weight, counting can be carried out.
The metering speed of this method should be light, and the number of shrimp larvae should be basically the same as that in the shipping container at a time, otherwise it will be very inconvenient, especially in nylon bags, so generally, the weight method is not used to measure and distribute shrimp larvae.