How long can African swine fever be reraised? How long after a non plague in a pig farm can it be re

African swine fever is a virulent infectious virus, it has three obvious characteristics worthy of our attention, that is, strong disease resistance, fast transmission, high mortality, due to the complexity of African swine fever virus, vaccine development is still a problem in the world. As for rural free-range pigs unfortunately contracted swine fever and were required to ban breeding within three years, this is obviously a wrong topic without any scientific basis. So how long after ASF can you recuperate?

What are the issues that need to be paid attention to in rehabilitation?

How Long After African Swine Fever Can I Recuperate?

Although there is no vaccine for African swine fever, it does not mean that there is no way to prevent it, according to research tests, the swine fever virus is afraid of high temperatures, and after boiling at a high temperature of 60 degrees, it can completely kill the swine fever virus. In addition, disinfectant disinfectant can also kill swine fever virus. And the swine fever virus is a contagious epidemic.

All infectious outbreaks are inseparable from infectious sources, vectors, and susceptible small animals. If any of these links are cut off, I don't think the swine fever epidemic will spread again, so if we do a good job of prevention, we can still achieve successful rehabilitation.

Up to now, African swine fever has been one year old in China. With the decline in production capacity, pig prices, driven by high profits, many pig farmers began to try rehabilitation, although there have been many failure cases, but there are no successful cases of rehabilitation. Here are some successful ways to do rehabilitation.

Generally speaking, because there is no swine fever vaccine to vaccinate and prevent, biological prevention can only be taken for swine fever prevention and control, so prevention will be more difficult. That is to say, the pig farm will be disinfected and cleared after infection, and the rehabilitation plan can only be implemented after three months when there is no new swine fever epidemic in the whole area.

What are the issues that need to be paid attention to in rehabilitation?

Before the pig farm is rehabilitated, it is necessary to carry out at least three rounds of disinfection of the pig farm and all the supplies of pig breeding, and combined with the characteristics of the swine fever virus that are afraid of high temperatures, the flame spray is used to disinfect and kill the empty bars and pens at high temperature, and at the same time clean up the weeds and trees around the pig house, and spread lime powder on the open space to disinfect. Prevent small animals from carrying the virus for transmission.

After the preparation and disinfection work before recuperation is completed, sentinel pigs can be introduced for observation and testing of swine fever virus. During the death process, the sentry pigs' saliva, urine, and feces were taken weekly for antibody testing for swine fever virus. Under normal circumstances, if the swine fever virus is not detected in 40 days, it can be rehabilitated on a large scale, but for safety, it is best to extend the virus observation of sentinel pigs to about 50 days.

If the sentry pig is unfortunately detected with swine fever virus, then it is necessary to re-estimate whether the evaluation can be rehabilitated? If you want to recuperate, then you need to fully disinfect again and introduce sentinel pigs to observe and feed. Therefore, if the swine fever vaccine has not been developed, it is not recommended to rehabilitate and expand at this time, the risk is really too great, and it is particularly troublesome.

You can raise it again after at least a year.

African swine temperature prevention methods.

1. Develop vaccines.

China has developed African swine temperature vaccine candidates, and laboratory studies have proved that two of the vaccine candidates have good biosafety and immune protection effects.

The two vaccine candidates are genetically stable in vitro and in vivo. The two vaccine candidates were sequentially passaged in primary cells in vitro, and their biological characteristics and genome sequences were not significantly changed, and no obvious virulence re-strengthening was found in pigs.

The minimum protective dose was clarified, and the safety of high-dose and repeat-dose vaccination was demonstrated.

The process research of preclinical pilot products has been preliminarily completed, the production seed bank of two candidate vaccines has been established, the purity of vaccine production seed batches and exogenous virus testing have been preliminarily completed, and the cell culture and lyophilization process of candidate vaccines have been preliminarily optimized.

Prevention and control work. The introduction of African pig temperature should be prevented, and food waste from aircraft and ships should be incinerated at international airports and ports. Establish rapid diagnosis methods in advance for areas that do not have the disease, and develop a plan to extinguish the disease in the event of an outbreak.

Since there is no vaccine that can effectively prevent African pig temperature in the world, but high temperature and disinfectants can effectively remove the virus, so doing a good job in farm biosecurity protection is the key to preventing and controlling African pig temperature.

The first is to strictly control the entry of personnel, vehicles and susceptible animals into the farm; Personnel, vehicles, and items entering and leaving the farm and its production area should strictly implement disinfection and other measures.

The second is to close the pigs as much as possible, take isolation and protective measures, and try to avoid contact with wild boars and obtuse edge soft ticks.

Third, it is strictly forbidden to use swill or meal waste to feed pigs.

Fourth, actively cooperate with local animal disease prevention and control institutions to carry out monitoring and investigation, especially in the event of pig temperature vaccine immunization failure, unexplained death and other phenomena, should be reported to the local veterinary department in a timely manner.

Theoretically, the fastest time to recuperate is 1 month after the outbreak of the epidemic. Due to some reasons such as the relatively weak technology of small and medium-sized pig farms and rural free-range households, and incomplete disinfection, it is recommended that small and medium-sized pig farms and rural free-range households should be rehabilitated after 42-60 days after the occurrence of African swine fever, and it is not recommended to rehabilitate too early, so as not to be "hit" again.

African swine fever may not be raised until at least a year or two later, or there is still the possibility of a source of infection

In the future, it may take almost half a year to be able to raise it, but this one will take half a year.

African swine fever (English name: infection with African swine fever virus, abbreviation: ASF) is caused by African swine fever virus (English name:

African Swine Fever Virus (ASFV) is an acute, hemorrhagic and virulent infectious disease caused by infection of domestic pigs and various wild boars (such as African wild boar, European wild boar, etc.).

Theoretically, it is possible to continue to raise pigs, and the African swine fever epidemic area can be lifted from the lockdown after 42 days of testing without problems, which means that African swine fever can be completely eliminated. Then the pig farm infected with African swine fever can be said to be able to raise pigs after 42 days. Horse plague can be avoided as a preventive aid, and the slaughter rate is still relatively high.

Hello, according to the theory of African swine fever can be recuperated as soon as 30 days after the onset of African swine fever, and a little slower can also be known to be rehabilitated in 45 days, but in actual operation, the success rate of pig farms recuperated after 60 days of onset is very low, and the success rate of recuperation after an interval of half a year is much higher. The author suggests that if African swine fever occurs in the farm, it will take at least 4-5 months to rehabilitate, and 6-7 months to determine the success of rehabilitation.

African swine fever does not infect humans.

African swine fever is not a zoonotic disease and does not infect humans. At the same time, the high temperature can kill the African swine fever virus, and 60 can be inactivated by continuous heating for 20 minutes.

The activity of African swine fever virus in meat food is relatively stable, frozen meat, semi-cooked meat, and some meat products, it can survive for several months to several years, African swine fever virus can survive for up to 1000 days in low temperature environment, and can survive for at least one month in contaminated pig pens.

Mode of transmission. Natural Host and Transmission Background: The African swine fever virus has a relatively single host, which will only infect pigs and will not spread to other animals, and the Blunt Tick is the natural host and main vector of the virus, and pigs of any age and breed can be infected with the virus.

Humans will not be infected with ASF by eating pork that contains ASF. Healthy pigs are transmitted by direct contact with poisonous pigs or sick pigs or by drinking contaminated swill, forage, feed, and drinking water.

Summary. 1. Disinfection of empty fences. First clean up the dirt, feces, dust, etc. in the pig house, and then disinfect by spraying and disinfection, and strive to be careful, clean and leave no dead corners.

Flame disinfection of high-temperature resistant items such as metal facilities and equipment. The cleaned up dirt should be treated in a centralized and harmless manner. 2. Disinfection of the site environment.

The roof, wall, and ground in the farm are sprayed and disinfected with glutaraldehyde or chlorine preparations. Roads are cleaned to remove manure, garbage, feed residues, etc., and then disinfected with quicklime, glutaraldehyde or caustic soda solution. Sewage is collected centrally, and chlorine preparations are placed for disinfection in proportion.

Hello, dear, 3 months.

1.The minimum interval is 3 months, preferably half a year.

How to disinfect it thoroughly.

2.There is a 3-month disinfection period before recuperation.

What is best to disinfect with.

3.Regarding the choice of disinfectants, you can choose 10% benzene and phenol, hypochlorous acid cave disinfectant, strong alkali disinfectant coarse only and rock trembling petaraldehyde, etc., and choose 3 or more disinfectants to be used alternately to avoid virus resistance.

1. Disinfection of empty fences. First clean up the dirt, manure, dust, etc. in the pig house, and then disinfect it with a brigade attack method of spraying and disinfection, and strive to be careful, clean, and leave no dead ends. Flame disinfection of high-temperature resistant items such as metal facilities and equipment.

The cleaned up dirt should be treated in a centralized and harmless manner. 2. Disinfection of the site environment. The roof, wall, and ground in the farm are sprayed and disinfected with glutaraldehyde or chlorine preparations.

Clean the road, remove manure, garbage, feed residues, etc., and then disinfect the demolition with quicklime, glutaraldehyde or caustic soda solution. Sewage is collected centrally, and chlorine preparations are placed for disinfection in proportion.

Pigs infected with African swine fever generally die within 10-15 days, African swine fever has a natural infection incubation period of 5-9 days, the body temperature will rise to about 41 at the onset of the disease, and the severe 1-2 days will die. African swine fever is an infectious disease with a very dangerous and high mortality rate in swine diseases, which only infects pigs under natural conditions, and pigs and wild boars of different sexes, ages and breeds are susceptible, and can occur all year round.

1. How long does it take for pigs to die of African swine fever

1. Pigs infected with African swine fever generally die within 10-15 days, and they will die in severe days, and they will die about 7 days after fever. After an outbreak of African swine fever in pig farms, it can lead to the infection of the entire farm in 1-10 days without timely treatment, and African swine fever has a natural infection incubation period of 5-9 days. African swine fever, commonly known as "rotten intestinal plague", is a dangerous and high mortality rate in swine diseases, the disease only infects pigs under natural conditions, pigs of different sexes, ages, breeds and wild boars are susceptible, and can occur all year round.

2. The incubation period of African swine fever virus is more extreme, and the activity and feeding of pigs will not be affected during the incubation period, and there is no abnormality in appearance, but the virus will multiply in large numbers in pigs and spread rapidly, thus entering the onset period. When the sick pig will begin to appear lazy limbs weakness, anorexia, body temperature gradually increases, ** small reddish-purple patches, with the aggravation of the disease, cyanosis will gradually expand, body temperature will continue to more than 40.

2. Prevention and control measures for African swine fever

1. After the occurrence of swine fever, it is necessary to clean up in time, the feed and utensils of the farm should be disinfected, and the farm should be closed when the disease breaks out, which can reduce the invasion of viruses, insects and other wild poisons, and pigs with low immunity are prone to disease.

2. It is forbidden for outsiders, vehicles and other poultry to enter the clean pigsty, and the car should be disinfected when entering the pig farm, and the pigs can not be fed with swill, it is easy to carry the virus, do not raise pigs freely, wild boars or external insects will cause pigs to get sick, observe the situation of pigs at any time, such as high fever, vomiting, redness and diarrhea, and do a good job of isolation in time to deal with it as soon as possible to reduce losses.

3, regular preventive injection, in spring and autumn every year, in addition to adult pigs generally carried out a swine fever rabbit attenuated vaccine injection, weaned piglets and newly purchased pigs should be timely epidemic prevention injection, newly purchased pigs should be isolated for 30 days, confirmed disease-free, and injected swine fever vaccine can be mixed after the group, swine fever often epidemic areas, piglets are born 21-30 days old injection once, 55-60 days old piglets weaned and injected again.

No. Do not raise the remaining pigs under the non-plague, because the remaining pigs under the non-plague may indeed not be infected, or they may tolerate it after infection, and they are very healthy in terms of appearance, but it is possible to induce non-plague again, so it is not recommended to breed.

African swine fever has symptoms such as redness, vomiting, fever, collapse, rectal bleeding, dyspnea, decreased appetite, and increased body temperature.

After an outbreak of African swine fever in <> pig farm, it can lead to the infection of the entire farm in 1-10 days without timely treatment, and the sick pigs will die within 10-15 days. The incubation period of African swine fever virus is more extreme, generally about 4-9 days, when the sick pig will begin to appear after the onset of limbs, the body temperature will gradually increase (will last to more than 40), etc., the 7th day after the fever will die, and the serious 1-2 days will die.

First, the African swine fever in the pig farm infected all in a few days

1. After the outbreak of African swine fever in pig farms, without timely treatment, it can lead to the infection of the entire farm in 1-10 days, and the sick pigs will die within 10-15 days. Once a pig is confirmed to be infected with African swine fever, all pigs in the same pen are culled.

2. The incubation period of African swine fever virus is more extreme, generally about 4-9 days, at this time, the activity and feeding of pigs will not be affected, and the appearance is not abnormal, but the virus will multiply in large numbers in pigs and spread rapidly, so as to enter the onset period. When the sick pig will begin to appear limb weakness, anorexia, body temperature gradually increase, ** small reddish-purple patches and other phenomena, with the aggravation of the disease, cyanosis will gradually expand, body temperature will continue to more than 40. Death will occur on the 7th day after fever, and death will occur in 1-2 days after severe disease, and the drop in body temperature of pigs in the early stage of death is the biggest difference between it and other epidemics.

2. Prevention and control measures for the occurrence of African swine fever

1. It is forbidden for outsiders, vehicles and other poultry to enter the farm, and after the occurrence of swine fever, it is necessary to clean up in time, and the feed and utensils of the farm must be disinfected, and the pigs can not be fed with swill, because it is easy to carry the virus.

2. Do not raise free-range pigs, wild boars or external insects will cause pigs to get sick, observe the situation of pigs at any time, such as vomiting, high fever, diarrhea, red pigs, to do a good job of isolation, when the outbreak of disease is closed, early treatment can reduce losses. Pigs with low immunity are prone to disease, and timely vaccination and disinfection with alkali or 100 poisons are also very important.

3. Regular preventive injection, in spring and autumn every year, in addition to the adult pigs generally carry out a swine fever rabbit attenuated vaccine injection, weaned piglets and newly purchased pigs should be timely epidemic prevention injection, newly purchased pigs should be isolated and observed for 30 days, confirmed to be disease-free, and injected swine fever vaccine before mixing. In areas where swine fever is common, piglets are injected once at the age of 21-30 days after birth, and again after weaning of piglets at the age of 55-60 days.