At present, the vast majority of California perch ponds have produced fish once to reduce the risk of winter culture. Recently, farmers have reported that the California perch let the anchorhead loach "ding" on, which is the most headache for breeding friends! So what to do with anchorhead bream?
Why is the Early Winter California perch prone to outbreaks of anchorhead seabream?
1. First of all, the water temperature is suitable for the growth and reproduction of anchorhead loach, and secondly, the plankton in the water body is reduced, and the natural enemies against anchor-headed loach are also decreasing.
2. The decrease in water temperature is very easy to pan the bottom, resulting in the floating of the bottom anchor loach, which increases the probability of anchor loach infection.
3. The winter light time is short, the intensity is weak, the photosynthesis of algae is weakened, which is very easy to cause hypoxia floating head, etc., resulting in poor physical fitness of The California perch, which is easy to be parasitic by the anchorhead bream.
Parasite prevention program
1. Improve the water environment
Timely water change, increase the amount of water, increase the species of plankton, control algae breeding, and pay attention to fertilizing water before the water temperature decreases.
2. Cultivate algae and cultivate bacteria
Regular use of bacillus, lactic acid bacteria and other microecological preparations, the cultivation of beneficial algal bacteria, reduce ammonia nitrogen, salt, hydrogen sulfide and other toxic and harmful substances to reduce the harm to water and substrate.
3. Improve the physique of fish
After the cooling, the California perch is weak and can no longer use insecticide to kill the anchorhead loach in the water, and can use the grass spore to be regularly mixed and sprinkled to repel the anchor-headed loach parasitic in the water body.
4. Scientific feeding, reasonable control of materials
Especially after the temperature drops, excessive feeding will not only cause feed waste, but also deposit the bottom of the water, aggravating the problems of excessive ammonia nitrogen salt and low dissolved oxygen in the water body, which further causes the deterioration of water quality. Therefore, in low temperature weather, it is recommended to reduce feeding.
5. Daily health care
Regular mixing of gold liver choleretic, to help California perch body fat conversion, reduce the burden of liver and gallbladder, California perch physical health, strong anti-stress ability, body surface secretion of rich mucus, anchor head bream naturally has no way to parasitize