In the past two years, the market for home bass in Jiazhou is extremely hot, the price of the pond is close to more than 20 pounds, the benefits are also very good, although the market is good, but still to see the risks in breeding, today to share with you, California perch breeding matters to pay attention to.
01
California perch is a carnivorous fish, feeding feed is basically more than 9,000 yuan per ton, expensive tens of thousands, which is characterized by high feed protein. California fish is carnivorous and has a low tolerance to sugar, and it is precisely because of this feature that the requirements for feed processing technology are higher than those of general feed. For example, in the ordinary feed processing will add a certain amount of starch, especially puffed feed, need to add starch to make the feed puffed, which is a commonly used method; but California perch is born with low tolerance to sugar, the more starch is added, the higher the sugar content in the feed, how to solve this problem?
Aware of this problem, we farmers to raise this fish, the first problem to solve is liver protection. For example, when we do technical services to farmers, we often smell some of the feed smell, with years of experience in medicine, I estimate that either choline is added, or bile acid is added, the purpose is to solve the problem of fatty liver. Based on the experience of using drugs in largemouth bass in recent years, when adding fish consurance and bile acid to auxiliary drugs, whether it is to treat rotten body or in the treatment of nocard, it has a good auxiliary effect.
02
The second lesson is that sea bass is naturally poor in the palatability of feed, even if the feed that usually adds therapeutic drugs, if the three yellow scatters or the fish Kang'an add a little more, or the enrofloxacin without the coating. It seems that the fish eats the material, in fact, as soon as it turns around, the sea bass spits out the material again, and it is precisely because of this characteristic that experienced farmers would rather use more liver protection drugs than use sediment to feed California perch.
Everyone has such an experience, as long as the dissolved oxygen in the water body is slightly lower, the feed intake of the sea bass will soon be affected, and the water temperature is too high and the light is too strong, which will also affect the feeding volume of the California perch. We often encounter feedback from farmers that the perch in the pond is not good enough to eat, when the aerator is turned on for an hour around the feeding table, increase the dissolved oxygen of the water body, and promote the ups and downflow by stirring the water body, after reducing the surface water temperature, it is found that the perch eats normally.
Once I met a boss, temporarily raised in several cages in the reservoir of sea bass fry do not open their mouths to eat feed, just that time the temperature rose very high, I suggested the boss, try to pump the water at the bottom of the reservoir, and then return to the cage, the boss will be suspicious according to this method to try, the third day, the boss is very happy, said that this suggestion solved his big problem.
03
The third problem is the white spot. As soon as they see that there are white spots in the internal organs, many people panic, thinking that Noka is coming, but in fact, if it is only the liver that is white, and no white protruding nodules are formed, it is not necessarily Noka. If it is Noka, there may be white protruding nodules throughout the internal organs. According to some information, this is caused by the iridescent virus, and there are still many California bass that are now farmed.
The appearance of this symptom, liver protection and liver protection, and enhanced immunity are the key, such as taking immune polysaccharides internally, adding Lactobacillus casei and Clostridium butyrates to the feed to promote intestinal digestion, and taking deworming drugs internally. In addition to the white spots caused by iridescence that are easily confused with the white spots caused by Nocardia, in fact, Edwardian bacteria and Schubert's aeromonas can also cause visceral white spots, so when it occurs, it is best to choose sensitive antibacterial drugs through drug sensitivity. (This article is transferred from the [Fish Farming Sutra].) If you have copyright questions, please contact [email protected]. ）
【Keywords】:California perch fishing drug aquaculture