Cultivation techniques of tilapia fry

Tilapia, also known as African crucian carp, is an important color aquaculture fish, to cultivate tilapia need to buy seedlings, but still need to breed their own seedlings. After reproduction, the seedlings can not immediately enter the culture pond, the new seedlings need to be cultivated to a certain size before they can be released, so today is mainly to introduce how to cultivate, how to feed, how to let the seedlings grow, smoothly under the pond culture. Now let's take a look!

1. Prepare the culture pool

Choose a pond of one to two mu, which is required to be a live water pond, which must be safe and not leaked. Before putting it, the pond must be cleaned up, it must be hardened, and the weeds in the pond must be removed. It can also be divided into small ponds for cultivation. Before cultivation, the whole pond should be disinfected with quicklime solution, three days later, it should be filled with water for a week, and a week later, it must be washed clean and re-irrigated. Finally, after keeping the water level of 60 cm during irrigation, use other fish to test for non-toxic and then put into breeding.

2. Fertilization

Before release, there is a net gauze to cover the inlets and drains, so that some small organisms and zooplankton in the water will be filtered and will not enter the pond, and then these will not harm the medically cultivated fish fry. However, it is necessary to fertilize and fatten the water quality. After the fry enters the pond, there will be some natural food, which is very beneficial to the growth of fry. Generally, 800 jin of mature fermented organic fertilizer is applied to one mu. Spray everywhere after dissolving with water. The performance of water and fertilizer is that water turns green.

3. Throw in and feed

After the release of fish fry, if there is a floating head to the shore to find food, you can start feeding, mainly feed purchased, specially configured tilapia fry feed meal, so that the feed is more suitable for the nutritional needs of fish fry. This kind of feed is sprinkled into the pond to be fed, and when it grows to 3 centimeters, you can feed your own feed. For example, cornmeal, soybean meal, as long as it is suitable for tilapia. Each feeding amount is 10, 000 seedlings, 1000 grams of feed, 2 to 3 times a day.

4. Put in

First of all, we should pay attention to the release of fish fry of the same size, not inconsistent size, easy to kill each other, scramble for food; pay attention to reasonable density, do not put too much, after release, it is appropriate to see the gap between clean water, that is, about 20,000 to 30,000 fish fry. Before putting it into the water, hit the pond water and put in some fish to see if you can adapt. If there is no problem, you can put it in. Be careful to put it lightly, for many fish fry are easy to damage together.

The cultivation of tilapia fry is very important at this stage. Careless management will lead to the death of fry and poor resistance of small fry, so the culture pond must be disinfected and cultivated in live water. The cultivation density is the direct factor for the growth of nutritious fish fry, and there must be a certain space for growth activity. Feed in the right amount and feed carefully.