With the sales of valuable fish such as squid in recent years, the demand for wheat oysters as their bait fish has been increasing, and has gradually become a “hot” breed of fish. As an important part of aquaculture, seedlings are a crucial step in aquaculture. Seedling cultivation is also called opening of fish flowers. Here, we analyzed and summarized the technology of opening the fish in the wheat field in Zhaoqing, Guangdong, and we will exchange ideas and make progress together!

In April, many farming friends encountered a thorny issue. This season, the survival rate of sea bream flowers is low. Why is this? How can we improve the survival rate of Maidena flower? The author summarizes the successful cases in the production line in recent years, summarized as follows:

Low temperature

Maitreya is a subtropical fish, living in the bottom of the pond at the same time, hi-temperature water, poor ability to adapt to low temperature, the overall water temperature in April is low, especially the bottom of the pond water temperature is low, the fry susceptible to stress, while the low temperature fry feeding ability is weak , Slow growth, so the fish body is poor and the survival rate is low.

In April, when the temperature is low and the weather is changeable, “Kibote” is used to improve the anti-stress ability of the fry and reduce the loss caused by fry because of the low water temperature.

Fry quality is poor

The fish eggs are not mature enough, and the fish fry produced is of weak constitution, poor anti-stress ability, and often vulnerable to severe weather changes.

Solution:

1. Ensuring adequate food to facilitate post-fish nutrition enhancement, enhance fish seedlings, and improve the anti-stress ability of fry. Water spiders (plankton) are good food for fish flowers (about how to cultivate water spiders will be mentioned in the next period). Feeding "aquaculture and stomach-enhancing yeast" has good food intake and nutrition, and it can also cultivate water spiders, which is conducive to fish feeding and fast-paced fish.

2. Man-made nutritional supplements to enhance the fish flower constitution. It is recommended that after the release of the seedlings, "good and more" + "Garewell" be splashed.

3. Anti-stress at the key moment. Before and after the dramatic changes in weather, use the "Combox" to help the fish spend safe weather.

Disease impact

Mainly bubble disease and parasites.

Bubble disease: The oxygen-saturated, high-pH ponds can be prevented by cultivating “water spiders”. The “supernatural carbon” prevention effect is also good. In fact, the salt effect is also very good. Special attention should be paid to the "white showers" and after sunny days, this kind of weather can easily cause bubble disease in fish fry. At the same time, this weather is prone to cause hypoxia and hypoxia, and through aerators, "algae" + "divine carbon" stabilizes the water. , "A good underwater poison net" bottom heat, etc. can reduce its damage to the fish fry.

Each week, a portion of the fish caught was examined by microscopy to check parasites and timely targeted treatment.

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