Seedling breeding technique of Tiger spot

Tiger grouper is a kind of grouper that we often eat, and its culture area is also extensive, so it is not difficult to raise it. However, there are also many people do not know how to culture, in fact, the most important thing before breeding is to cultivate fish fry, first of all, the fry must be cultivated well before it can be put into the culture pond for formal culture. So how do tiger spots grow seedlings? The following editor brings you the breeding technology of Tiger spot, let's have a look!

1. Fish fry selection

The choice of fish fry is very important, we should ensure that the specifications of fish fry are not much different, its length is about 3-4 cm. When cultivating fish fry, we should pay attention to the density and control the quantity according to different specifications and growth length. Fry of different specifications should also be cultivated separately, and fry with obvious wounds, diseases and other weak growth should not be selected when choosing fry, so as to ensure their own breeding efficiency.

2. Reasonable feeding

When cultivating fish fry, the bait is mainly small fish and shrimp, and the feeding frequency and amount should be controlled according to the specifications of fish fry. When the fry is 3-4 cm, the daily feeding frequency should be kept at about 5-6 times, and when 6-7 cm, the feeding frequency should be reduced twice a day. Feed about 3 times a day at about 11-19 cm. No matter when it is fed, do not feed too much, each time the amount of feeding should be kept at about 5% / 12%.

3. Change the water in time

During the cultivation period, we should change the water timely according to the change of season, the feeding of bait and the growth of fish fry. Usually, the water should be changed after each feeding. When changing the water, pay attention to the residual bait in the pond and the excrement produced by tiger spots. When changing water, do not replace it all at once, properly inflate and convection to prevent the decline of oxygen content in the pool water, which is not conducive to the growth of tiger spots.

4. Separate cultivation management

Tiger spot fighting with each other is quite serious, of which the most serious situation is in the seedling stage. As the individual specifications of the seedlings are different, if there is no separate breeding, it is easy to bully, eat too much, resulting in injury and death. Therefore, about three days in the breeding process to carry out a screening, to ensure that the specifications of fish fry in each pond are consistent, to reduce the phenomenon of mutual fights. In separate cultivation, we should pay attention to reasonable operation to prevent fish fry injury.

5. Overwintering management

The overwintering work of tiger grouper fry is more important, so we should strengthen the overwintering management and feed enough bait. Enhance the physique of tiger spot, improve cold resistance, and help fish fry survive the winter smoothly. And when the water temperature is lower than 16, it is necessary to increase the temperature in time, keep the water temperature above 20 degrees, and its temperature fluctuation should not exceed 2 degrees. When overwintering, bait feeding can be reduced appropriately, and its dosage can be kept at about 5% of the body weight of fish fry.

Before breeding, we should understand the living habits of tiger grouper fry, of which we should pay attention to the temperature. Tiger spot is originally a tropical fish. Therefore, the cold resistance is poor, and the water temperature should be prevented from exceeding the range of 15-35 when breeding. The lethal temperatures are 13 degrees and 37 degrees respectively, so we must pay more attention to them. That's all for today's introduction. This article is for reference only. Thank you for your reading and support.