Yellow jaw fish split head disease is a common disease in recent years, whether from fry or adult fish will be sick, every year from June to September is a peak period of incidence, yellow jaw fish split head disease is generally caused by Edwardian infection, when the stocking density is large, the food rush process caused by mechanical damage to the body surface wounds, coupled with pond water environment mutations, inverted algae or water quality deterioration such as reduced pH, ammonia nitrogen salt exceeding the standard, low dissolved oxygen, turbid water body, etc. will make Edwardian bacteria more susceptible to infection. The most obvious symptom of split head disease is redness on the top of the scalp, and the skull is cracked when it is severe, once the disease is not good, whether it is external disinfection or internal antibiotics, it is not good, so we must do a good job of prevention.
The main cause of split head disease in yellow jaw fish
1. The breeding density is large, resulting in a decrease in the activity space of the yellow jaw fish, mutual crowding and stabbing injuries during the process of grabbing food, mechanical damage, etc. will cause wounds on the surface of the yellow jaw fish, making parasitic bacteria and other pathogens more susceptible to infection and parasitism.
2, the bottom of the pond bait, feces and other organic matter more, serious water pollution, poor water quality, ammonia nitrogen salt exceeds the standard, insufficient dissolved oxygen in the water body, resulting in the growth of the fish physiological function is affected, resulting in the yellow jaw fish physique and immunity decline, once the external climatic conditions cause the pond water environment mutation such as inverted algae, the water body becomes muddy, resulting in the yellow jaw fish stress superposition, the disease is more prone to outbreak.
3. There is no regular regulation to improve water quality and substrate, and there is no regular internal administration to prevent split head disease products in yellow jaw fish.
Precautions for split head disease in yellow jaw fish
1, according to the pond situation, choose the appropriate breeding density, once the pond culture is higher, the greater the risk of water quality regulation and disease.
2. In addition to regularly mixing and feeding Jun Wuying in the feed to inhibit the growth and reproduction of harmful bacteria, it is also necessary to do a good job in the management of pond substrate and water quality. The deterioration of substrate and water quality usually strengthens the infectivity of fish to pathogenic microorganisms, because the yellow jaw fish is a benthic fish, more sensitive to changes in the substrate, can regularly use photosynthetic bacteria, bud music, stable more water quality regulation, regular use of potassium persulfate or qingqing for bottom modification products for bottom improvement.
3. Regularly do a good job in fish health care, regularly use chivalrous bile mixture feeding, enhance the physique of yellow jaw fish and resistance to pathogenic microorganisms.