How to raise shrimp fry? A detailed explanation of the key points of shrimp fry breeding techniques

Shrimp fry should be released on cloudy or rainy days to avoid direct sunlight. During the first three days after entering the pond, feed them with trash fish or minced meat; after one month, other bait can be fed. The amount and timing of feeding are determined by the scale of breeding. In addition, when stocking shrimp fry, pay special attention to the following points:

1. Time for stocking shrimp fry

Stock 50,000 to 100,000 shrimp fry per mu, with a size of more than 1.5 cm, preferably in June to July. Stock 20 to 25 kg of shrimp seed per mu, with a size of 1,000 to 1,600 fry/kg, preferably in October to December.

Of course, the earlier the stocking time, the better. Crawfish fry introduced in early May are all from breeding around September of the previous year, and are crawfish fry hatched before and after overwintering. This batch of crawfish fry can all mature and reproduce around September of this year. Most of the crawfish fry introduced after June 10 will mature and reproduce around May of the following year. Therefore, to obtain better breeding benefits, it is necessary to introduce fry early and introduce early fry, which helps provide breeding benefits.

2. Precautions for stocking

Shrimp fry and seed should preferably be stocked on cloudy or rainy days. If sunny weather occurs, it should be done in the early morning or evening to avoid direct sunlight and prevent it from affecting the survival rate after stocking. Shrimp fry and seed should be stocked in full in one go.

3. Polyculture with silver carp and bighead carp fingerlings

For each mu of shrimp pond, polyculture 80 to 100 silver carp and bighead carp fingerlings, with a size of about 30 fish/kg. Summer fry of silver carp and bighead carp can also be polycultured, 200 per mu. Silver carp and bighead carp fingerlings must be stocked 10 to 15 days after the shrimp fry and seed are stocked to ensure the demand of freshwater shrimp for bait organisms. Polyculturing silver carp and bighead carp can first regulate water quality, and second make full use of the water body to increase fish income.

4. Disease prevention

Only with a strong physique is disease resistance strong. Therefore, in the process of disease prevention, strengthening the physique of crayfish is also key. Crayfish are crustaceans and molt frequently. Timely supplementation of calcium in the pond is beneficial to the recovery and strengthening of the crayfish physique.