Autumn is a golden period for the rapid growth of various fish, especially after entering September is the peak period of California perch feeding, the direct feeding amount of this time determines the level of California perch production, high-intensity feeding in order to improve the production of California perch, but this time the temperature difference between day and night increases, the amount of feeding increases, the water quality deteriorates and other reasons will have a certain impact on the physique of California perch.
Recently, many California perch farmers have reported that the anchorhead seabream bites the surface of the California perch in the pond, coupled with the deterioration of water quality, resulting in a rotten body of wound infection, and the bite of the anchorhead perch will cause the parasitic part to appear to prevent inflammation and redness, erythema, and then necrosis. At the same time, the wound after the bite of the anchorhead loach creates conditions for the invasion of bacteria, and if it is not treated in time, it will cause rot, and nocardiosis will cause greater casualties.
Because the way of parasitism of anchorhead loach is mainly the head of the anchor head loach inserted into the Body of the California Perch, the drug is difficult to play a role in it, on the other hand, after the pond is medicated, the Anchor Head Perch may automatically fall off the surface of the California perch, but there will still be anchor head loach will form sporangia hidden in the silt, once the medicinal effect disappears, the water temperature is suitable, the anchor head perch will multiply in large quantities and re-parasitize on the surface of the California perch. Therefore, anchorhead bream is difficult to kill, mainly to do a good job of prevention and control measures to reduce the incidence of anchorhead bream.
Anchorhead loach prevention and control measures
1. Thoroughly clear the pond and disinfect the seedlings before releasing the seedlings, and kill the insect eggs in the silt.
2. Because the water quality of the main outbreak of anchorhead loach is a pond with more organic matter and thin water quality, the pond with regular fertilizer water replenishment, rich algae and comprehensive nutrition can effectively inhibit the growth of parasitic pathogens.
3. Maintain the good water quality of the pond, the dissolved oxygen of the pond water body is sufficient, and the appropriate use of em bacteria, bacillus, lactic acid bacteria, etc. is used to regulate the water quality.
4. Regularly feed the liver and gallbladder in the feed to protect the liver health of the California perch, improve the immunity of the California perch itself, promote the digestion and absorption of fat, and reduce the incidence of fatty liver of the California perch. Chivalrous liver and gallbladder can also promote liver detoxification and detoxification, repair liver and gallbladder damage, and improve the health of California perch liver and gallbladder.
5, regular use of safe and non-irritating insect repellent products Che Jing, Che Jing is pure Chinese medicine extract, with insect repellent and insect repellent ingredients, can effectively prevent and control parasites such as anchor loach, does not hurt water, does not hurt fish body.