From April 25th, 2015, technical service personnel found signs of successive onsets of grass carp in some ponds during visits to users and Tangtou in Hubei Tianmen. The main symptoms were rotting, rotten tail, green liver, and bleeding. After entering late April, as temperatures and water temperatures increase significantly, various pathogens such as bacteria and parasites in the water body become active, and they begin to enter aquatic animal disease-prone season. According to previous years' experience, each year in May, the duration of During harvesting of rapeseed, especially when it comes to weather changes such as turning rain after rain, it is often a period of large outbreaks of grass carp fish disease.
According to the tracking of symptoms of grass carp by technical service personnel in recent years, the main epidemic symptoms from April to June are as follows:
According to different epidemic symptoms and different pond water quality conditions, the technicians recommend that the users adopt different treatment programs:
First, microscopic examination of silkworms, no worms and ringworms, simple rot, tail and other bacterial symptoms
Program:
1. Chlorine dioxide effervescent tablets, 2 acres -3 acres / 400 grams.
2. First take 2 days of zebus spirit +3505, and then take 3 days of oral liquefaction +3505.
3. According to the water quality conditions to take water transfer measures, such as the turbid water quality and early insecticidal more frequent pond recommended 3201+3502 Quanchiposa, thin water pond 3105 + algae source + phosphate fertilizer and water.
Second, the lid, eyelids, mouth, fins, muscle congestion and other viral bleeding symptoms
Program:
1. Glutaraldehyde, benzalkonium bromide or povidone-iodine sterilization.
2. Oral administration of 3505 + Bufalin + Ribavirin orally for 5 days.
3. Viral hemorrhage ponds should not take insecticide measures, otherwise it will increase the size of grass carp death.
Third, intestinal, anal redness, intestinal symptoms, green liver and other symptoms
Program:
1. To reduce and control the feed, when the death is large, it is recommended to stop eating for 2 days to 3 days before taking it.
2. Chlorine dioxide effervescent tablets, 2 acres -3 acres / 400 grams.
3. Take orally 3505+ bufalin + allicin + konisha.
4. Enteritis-like ponds are strictly prohibited from feeding ryegrass.
5. Pond grass residue, feces, suspended more ponds 3101 + algae source + phosphate fertilizer diversion.
Fourth, regular inspection of cocoon parasitic parasites, you can take the fish to the service station or contact technical service personnel. They will decide whether or not to take insecticide measures based on the parasitic number of parasites.
May is the high incidence of fish disease in grass ponds in May each year. The black is coming in May. The key to fish diseases is prevention and prevention.
Puyang Linshi Medical Supplies Co., Ltd. , https://www.linshimedicals.com