How much is the price of South American prawns per jin? What are the tips for breeding?

With the continuous expansion of the scale of culture in recent years, the culture of Penaeus vannamei has become an upsurge, and its short growth cycle and good economic benefits have always been a promising development trend for farmers. How much is the price of South American prawns per jin? What are the tips for breeding?

How much is the price of Penaeus vannamei per jin?

Penaeus vannamei is a kind of shrimp with high nutritional value, and it is also a common delicacy on our table. Now the price of Penaeus vannamei in the market is generally 50-60 yuan per jin. As the breeding situation is different in different places, the market situation is also different.

However, with the decline in the price of Penaeus vannamei, the main species of farmed shrimp in 2019, shrimp farmers' enthusiasm for their culture has declined.

The prospect of "persistently low market prices" in 2019 remains a huge challenge for shrimp farmers, who are still conservative and have not decided on crop plans for 2019.

Second, what are the secrets of shrimp culture in South America?

1. High quality seedlings

Many times in the market, shrimp is not raised well, and many farmers will blame this seedling at the first time, which shows the importance of seedling to successful breeding, so here we also suggest that we should choose high-quality seedlings to breed.

2. Strong seedlings and seedling protection

Selected high-quality seedlings, reasonable stocking density, the following is to protect the seedlings, there are seedlings to have the significance of raising, there are seedlings in the middle and later stages of the water body is good to control, there are seedlings to have yield.

3. Scientific bait

Bait can choose full-price palatable formula feed and small miscellaneous fish, snail clam meat and so on. Penaeus vannamei has higher requirements for feed protein, which should not only ensure that the shrimp is full and eat well, but also take into account the breeding environment and reduce the feed cost. therefore, the bait should choose pellet feed with good brand and high quality. No. 0 broken pellet was selected in the early stage of shrimp culture, No. 1 in the middle stage, No. 2 and No. 3 in the later stage, clam meat and so on.

The amount of feeding should be determined according to the comprehensive factors such as shrimp size, survival rate, water quality, weather, feed quality and so on. Practical experience in production is very important. A food table should be set up in the pond, checked and observed regularly (once every 10 days or so), and adjusted in time. Adhere to the "four fixed" principle when feeding, shrimp grow to 3~10cm in the middle of culture, daily feeding is 6%-8% of shrimp wet weight, shrimp body length is more than 10cm in the later stage of culture, daily bait is 4%-5% of shrimp wet weight. In the early stage of culture, the feeding was divided into two times a day, and the feeding time was 7:00 and 1900, respectively; in the middle and later stage of culture, the feeding time was 7:00, 19:00 and 23:00, and the evening feeding accounted for 50% of the daily feeding. Put it in the deep water along the pool during the day and in the shallow water in the evening, taking eating 2 hours after bait as the principle.

4. Patrol the pond

Patrol the pond three times in the morning, evening and midnight every day to observe the change of water color and whether the shrimp has floating head. The activity and growth of prawns were examined by means of light observation and fishing net inspection. If abnormal, the amount of feeding should be adjusted, and it is found that the floating head can open the aerator.