Technical communication

California perch in the

California perch in the "gold nine silver ten" sprint! How to catch fish early and sell them at a high price? That's all the fish people care about
"White dew autumn equinox night, cool night night", the temperature began to drop, day and night temperature difference significantly began to become larger. However, as The California bass is not a high-temperature resistant fish, the water temperature is the most suitable for the growth of California bass at this time, and the feeding becomes significantly more prosperous. At this time, the amount of fish in the pond, bait to reach the peak of the year, is also the peak of the fish, the water quality, the bottom quality of the most easy to deteriorate, fish stress dead fish, all kinds of problems, leading to the loss of aquaculture friends, so do a good job in September aquaculture management and fish work is very important.

(Figure: microfilter, protein separator)

1. Water - bottom management of Perch pond in California

1.1 Water quality management and regulation
At this time, the feeding material of California perch was significantly improved, and many aquaculture friends began to feed a large number of fish. The residual bait, excrement, animal and plant bodies and other organic pollutants in the pond also began to accumulate in large quantities, which was easy to cause the blocked water nitrogen cycle, and the ammonia nitrogen and subsalt exceeded the standard. The weather changes greatly, the algae in water is easy to dump, easy to cause fish stress; The organic matter in the water is much, the water is sticky, and the organic pollutants can not be decomposed in time, which makes the water too thick and not fresh. Should strengthen the use frequency of enterococcus faecalis, compound bacillus, photosynthetic bacteria and other living bacteria preparation, use alternately, decomposition of organic pollutants in water, make water color refreshing, water quality stability is higher, and effectively prevent the rise of ammonia nitrogen, subsalt or rapid rebound after treatment.

1.2 Improvement of substrate management

Strengthen the use of potassium ferrate, potassium bisulfate complex salt, polymeric ferric sulfate, sulfur bacteria particles and other bottom modification products frequency, can be 7-10 days to change the bottom once.

(Figure: Pure oxygen dissolver)

Two, scientific and reasonable feeding

When water temperature drops, the activity and digestion of California perch slows down. When the water temperature is below 20℃, it is recommended to feed only 2 meals per day. As the temperature difference between day and night is large and the water temperature is cool in the morning, it is recommended to delay the feeding time in the morning. In the afternoon, the water temperature is relatively high and the dissolved oxygen is sufficient, and the perch is more likely to feed on the water surface. Therefore, the dinner should not be too late, and should be appropriately advanced, and gradually acclimated to dinner.

Three, do a good job of internal health care, good liver and intestines

Compound bile acid + compound Cloclodium butyricum preparation + multi-dimensional, 5-7 days a course of treatment, promote hepatoenteric circulation, prevent liver metabolic disorders, reduce California perch liver, yellow liver, liver fibrosis, enteritis, bleeding, intolerance to net drawing, intolerance to transport and other phenomena.

Four, do a good job of fish anti-stress work, sell good fish

4.1 Timely transfer water to keep water fresh

In particular, two weeks before the fish, should strengthen water quality regulation, especially to avoid ammonia nitrogen, sub-salt, if exceed the standard should be reduced as soon as possible to the normal level, otherwise the fish will easily lead to dead fish; 2-3 days before the fish, adjust the water quality, make the water fresh, can ensure the stability of fish eating, improve the quality of fish.

4.2 Timely change the bottom to prevent the net from returning to the bottom

2 weeks before fish out, the bottom should be changed at least 1-2 times, and strengthen the water quality of ammonia nitrogen, sub-salt, hydrogen sulfide and other indicators of detection, can reduce the fish out of the net when stirring bottom mud caused by back to the bottom, reduce fish back to the bottom poisoning and excessive stress response.

4.3 Protect the liver and gallbladder, enhance physical fitness, and improve anti-stress ability

During the peak period of large amount of feeding, most of the hepatoenteric lesions of California bass were damaged. If timely internal administration measures were not taken, the hepatoenteric lesions of California bass would be aggravated, leading to the decline of the anti-stress ability of the fish, and prone to bleeding, de-sticking, scaling, intolerance to net drawing, and a large number of dead fish could not get on the bus. Thanks to its perch deeply functional recovery is a slow process, should be 15 to 20 days in advance to use composite bile acid + composite + multidimensional mixing materials internal and butyric acid bacteria, can very good resume the function of liver sausage, enhance their physique, promote surface mucus secretion, reduce the friction in the process of net damage, reduce the stress reaction dragnet fish, prevent a lot of dead fish can't get on the bus.

4.4 Resist stress and prevent hard bones

Fish dragnet, due to the large fish stress and can lead to California bass body stiff cramps death () is the so-called "hard bone" phenomenon, caused much loss, can be in 3 to 5 hours before Seine splashing timely different VC sodium, high content of VC, the multidimensional anti-stress products, such as effective in relieving stress reaction, prevent "hard bone", even without a bony fish, Also should be in the net after appropriate lifting 0.5-1 hours to get on the car, improve the number of fish.

4.5 Timely disinfection after fish out to prevent inflammation and infection

Out of the fish, as a result of pulling the net, pick the fish, causing different degrees of mechanical damage to the fish, so it is necessary to timely disinfection after the fish, to avoid inflammation of the fish wound infection, causing other diseases. Can be in the afternoon of the day of the fish, with compound iodine + Chinese herbal medicine full pool disinfection treatment.