Factory farming: There are 8 to 10 cement pools in a shed, with specifications of 4 meters * 6 meters, 5 meters * 5 meters or 6 meters * 6 meters. Generally, each cement pool contains 2 Ten thousand seedlings, the yield is 300 to 400 kilograms per pond, feeding 6 to 8 times per day in the seedling stage, and 4 to 6 times per day in the middle and late stages.
The overall breeding success rate is relatively good. Therefore, stimulated by the high success rate, as well as the low price of turbot and other fish and the high incidence of disease, the number of farmers switching to shrimp farming has increased significantly.
Since many farmers have just started raising shrimps, many people blindly overfeed due to lack of experience, and some even abuse fertilizer and aquatic products like in the outer pond.
If you come here, you will encounter many farmers. Due to the continuous application of fertilizers and water, after 15 days of breeding, a layer of dirt like snot appears on the bottom of the pond, and jejunum and stomach of shrimp larvae are found. , liver atrophy, dull body color and seedling drop occurred, but many farmers turned a blind eye to this and continued to feed.
It is for these reasons that the current incidence of factory shrimp farming is more than last year; the problems in the breeding process are similar to those in high-density shrimp farming. The body color of shrimp larvae is yellow or blue, and the organic matter in the water is low. Excessive growth, slow growth and uneven size, and liver disease. The author adopts corresponding treatment measures according to their different situations, and has achieved good results. The summary is as follows: Once the substrate is found to have deteriorated, or the shrimp has symptoms such as jejunum and empty stomach, liver atrophy or even seedling loss, the feed should be reduced immediately. Even stop feeding. At the same time, the following corresponding measures should be taken according to different situations:
In the early stage of breeding: use Shuidujing + Fish and Shrimp Guard to detoxify and protect the liver, use Big Pao King + Multi-dimensional Strong Seedlings to strengthen the body, and use Fudian + Decomposition Base Change to prevent the bottom of the pool wall from slipping.
Slow growth in the early stage: first use Shuidujing + Heiba ??Spray to prevent ammonia nitrogen poisoning, and then use Shuidujing + Fish and Shrimp Guard to prevent and control liver lesions.
Slow growth in the middle and late stages: To solve the problem of atrophy of the front end of the liver, if there is a sudden death, it must be waterproofed and layered, and the bottom odor is poisonous and hypoxic, and detoxification should be carried out in time.
If you find any prawns with red tails: Disinfect first