Guiding Opinions on Safe Production of Pig in Flood Season
Shandong Animal Husbandry Association
Technical System of Pig Industry in Shandong Province
Shandong Provincial Animal Husbandry Station
Guiding Opinions on Safe Production of Pig in Flood Season
Lu Mu Xie Pig Letter [2021] No. 1
According to the forecast of the Central Meteorological Observatory, typhoon "fireworks" will enter Shandong Province during the day on the 29th. Affected by this, there will be significant rainfall in Shanghai, Jiangsu, eastern and northern Anhui, Shandong, eastern Henan and eastern North China in the next three days. The meteorological risk of local mountain torrents in central Shandong and northeastern Hebei is high. In order to effectively deal with the impact of adverse weather and ensure the safe production of live pigs, the Pig Industry Branch of Shandong Animal Husbandry Association, in conjunction with the Shandong Pig Industry Technology System and the Shandong Animal Husbandry General Station, put forward the following guidance on the safe production of live pigs during the flood season:
1. timely maintenance of facilities or equipment, nip in the bud.
Pig production units should quickly organize personnel to make a list of safety production during the flood season, one by one safety hazards. Dredge the drainage channel around the pig farm to ensure that rainwater does not flow back during rainstorm. Measures should be taken as soon as possible to prevent rainwater from flowing into manure treatment sites and to prevent manure from flowing into public waters such as rivers, lakes and ponds with rainwater. Repair, maintain and update the facilities and equipment such as pig farm barn, fence, manure treatment field, water pipe, cable, electric gate, etc., so as to ensure no leakage and rain leakage. Check the reserve situation of generator, diesel and other backup power supply. Ensure that the material warehouse is flood-proof, leak-proof and seepage-proof. Prepare flood control materials such as sandbags, feed and clean drinking water, and emergency lighting equipment to ensure smooth communication. Dredge the drainage channel in the pig farm and drain the water inside and outside the house. Timely repair and reinforce damaged piggery, eliminate hidden dangers and improve supporting facilities. Remove the sludge, feces, urine and sundries left after the water recedes in time.
2. strengthen disinfection to prevent secondary disasters.
Thoroughly clean, rinse and disinfect the pig farms, surrounding environment and production tools that have been subjected to heavy water. The excrement, dirt and sundries after cleaning shall be accumulated, fermented or treated innocuously by other measures. To strengthen ventilation, until the pig house clean and dry, can be transferred to the pig. The general procedure is to carry out mechanical washing, clean up, paint the wall, strengthen ventilation, dilute 5% hydrogen peroxide silver ion disinfectant with water for 5 times, and spray the wall, ground, ceiling and interior space according to 100ml/m2; Or use 2% caustic soda solution or lime plus alkali method, I .e. use 8%-10% quicklime water plus 1% caustic soda water to spray the walls, ground and interior space, after medication, the pigsty shall be sealed and disinfected with flame if possible to ensure the disinfection effect. If the conditions for flame disinfection are not met, 5% hydrogen peroxide silver ion disinfectant can be diluted 5 times with water, and air atomization disinfection can be carried out according to 20ml/m3, so that there are no dead corners in the disinfection. Piggery and utensils are sprayed with 3% lysol or 0.02-0.03 peracetic acid for disinfection, or diluted 5 times with 5% hydrogen peroxide silver ion disinfectant mixed with water to soak the utensils for 30 minutes for thorough disinfection. The disinfection of the environment around the pigsty should cover the area of 5 meters around the pigsty, and 30-50 mg/l sodium hypochlorite can also be sprayed, and quicklime should be sprayed in the area of 1.5-2 meters around the pigsty for disinfection.
3. strengthen epidemic surveillance and strengthen comprehensive prevention and control of epidemics.
Pay close attention to the dynamics of the African swine fever epidemic, strengthen the health monitoring of the pig house environment and pig herds, and focus on the prevention and control of the African swine fever epidemic. After the flood, the African swine fever virus nucleic acid monitoring should be sampled in time. In the event of a major animal disease, it is necessary to immediately report to the relevant departments at a higher level, initiate emergency plans, and implement effective measures to strictly prevent the spread of the disease. It is necessary to do a good job in the immunization of pigs after the flood, according to the local disaster situation and the immune status of pigs, highlight the strengthening of the immunization of affected pigs, timely do a good job in the immunization of swine blue ear disease, swine fever, foot-and-mouth disease and other major animal disease vaccines, combined with the actual development of swine colibacillosis, Clostridium welchii disease, streptococcus disease, swine lung disease, swine erysiposis and other diseases.
4. strengthen the feeding management of pig farms and improve the immunity of pigs.
Do a good job of feed, veterinary drugs, disinfectants and other materials reserves, to ensure adequate supply of materials in the flood season. Strengthen the ventilation of the enclosure, control the temperature and humidity in the enclosure, clean up the excrement in time, replace the bedding, and maintain a good breeding environment. Commercial pigs that meet the standard can be released as soon as possible to reduce the breeding density. Feed should be used as soon as possible and kept dry and clean. The feed storage room should be ventilated and dry to prevent the feed from mildew, and the flooded feed should be treated in time. The pig's own immunity and anti-stress ability can be enhanced by increasing the vitamin content in the feed or adding probiotics. Drug prevention and health care can be carried out for bacterial diseases that are prone to stress.
5. strengthen the management of drinking water for pigs.
Contaminated pig drinking fountains, water tanks, food tanks, etc. need to be cleaned and disinfected before they can be used again. Drinking water is best to use tap water. Flood-contaminated well water or natural river water cannot be directly used. 5% hydrogen peroxide silver ion disinfectant must be used for clean consumption according to 500ppm. Precipitation treatment must be carried out before use, disinfection by chlorine dioxide effervescent tablets, bleaching powder and other disinfectants, or direct disinfection by boiling.
6. strictly do a good job of harmless treatment of dead livestock and poultry.
Sick and dead pigs caused by floods or other reasons should be treated in strict accordance with regulations, and it is strictly forbidden to discard pig carcasses at will. In the process of transporting and handling pig carcasses, the principle of preventing the spread of pathogens and preventing environmental pollution should be strictly followed. The dead pigs should be treated in a fully enclosed manner, and the vehicles, transportation facilities and contaminated barn roads and treatment points should be thoroughly cleaned and disinfected. Harmless treatment personnel shall wear protective clothing, masks, gloves, goggles and water boots to protect themselves. After the treatment is completed, the individual and the environment should be thoroughly disinfected in a timely manner.
7. eliminate mosquitoes and flies and cut off the spread of disease.
After the rainstorm, mosquitoes and flies are bound to breed in large numbers. The important measures to prevent mosquitoes and flies are the disinfection of the sewage treatment tank and the delivery of drugs to the drains and weeds around the pigsty, so as to quickly organize weeding and clean up weeds in time. Put drugs to kill mosquito and fly larvae in the cesspool, and sprinkle quicklime around the pigsty can effectively prevent the breeding of mosquitoes and flies. In addition, the use of mosquito coils or mosquito killing lamps in piggery is an effective way to reduce mosquitoes and flies in piggery. Insect-borne diseases such as erysipelas, erythrocyte, toxoplasmosis and other diseases are easy to occur in piggery after heavy rain in summer. At the same time, water sources are extremely vulnerable to pollution, and drug prevention can be carried out through various schemes.
8. effectively strengthen emergency preparedness, strengthen flood season prevention and control propaganda.
Animal husbandry departments at all levels should strengthen the publicity of disaster prevention knowledge, guide pig farms to do a good job in epidemic prevention management, improve the biosafety conditions of pig farms, maintain flood control facilities and equipment of pig farms, evaluate the ability of pig farms to prevent waterlogging, and formulate emergency plans such as personnel transfer. For low-lying pig farms in flood areas or areas with potential debris flow risks, emergency material reserves should be strengthened and emergency teams should be formed. During the flood season, a 24-hour emergency duty system should be implemented to make emergency preparations to ensure that emergency treatment is carried out in an orderly manner.
