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Is The Outbreak Of African Swine Fever A Turning Point In The Development Of Domestic Aquaculture?

- Jan 18, 2019 -

Is the outbreak of African swine fever a turning point in the development of domestic aquaculture?

In China, the difference between the South and the North is great. The whole process of breeding, the design of the bar, there are gaps, there are gaps in the disease. Although the temperature in the south is not too low, the disease will still be related to the season. For example, the problem of diarrhea, the problem of foot-and-mouth disease, and the problem of respiratory tract, these three diseases are the most important problems.

Main prevention and control diseases in autumn and winter in Guangdong and Guangxi

First, respiratory problems

In the autumn and winter seasons, the pig farm space is relatively dense, closed, air circulation is relatively small, and the respiratory problems will be more. The problems of Haemophilus parasuis and infectious pleuropneumonia are relatively prominent. Of course, the highlights of these two diseases may be related to the blue ear, and are also related to the problems recently introduced by the farm itself.

If it is introduced more frequently, or the recent introduction does not pay attention to domestication, then this not only brings the problem of the respiratory tract, but also brings the problem of the digestive tract, that is, the problem of diarrhea, these two are related.

Second, the problem of diarrhea

If it was introduced in September or October, it did not pay attention to the prevention and control of the vaccine after the introduction, and did not pay attention to domestication. There are two problems in the autumn and winter, one is blue ear and the other is diarrhea. The specific manifestations of the blue ear problem are Haemophilus parasuis and infectious pleuropneumonia. The problem of diarrhea is directly related to PEDV. Pay special attention to these two diseases during the introduction of the reserve pigs.

Third, foot and mouth disease problem

The problem of foot-and-mouth disease has always existed more or less in our country, just to say how many problems. The most important aspects of biosafety are vehicles, vehicles for sick pigs, etc., which are very easy to bring into disease.

Identify Seneca and Foot and Mouth Disease

The Seneca virus exists in China or in the Guangdong-Guangdong region, but its incidence is relatively small compared with the overall O-type or A-type foot-and-mouth disease. In the case of blisters involving the mouth, hooves, and breasts, if you have these symptoms, you should first consider the problem of foot-and-mouth disease. Strengthen the differential diagnosis, follow the foot and mouth disease to prevent and control, and also make a diagnosis while preventing and controlling. If it is found to be Seneca during the diagnosis, then we take some corresponding measures. Because there is currently no vaccine, biosecurity is also a plus to relieve clinical symptoms.

Method for treating diarrhea in piglets in delivery room

First, screening for pathogens

First of all, there is a clear understanding of piglet diarrhea, which factors are caused by it. Whether there is a history of illness in the past year, whether there is introduction, whether to vaccinate after introduction, whether the vaccine is matched with the epidemic strain of diarrhea.

Is my treatment appropriate and whether I am domesticating the gilts?

Whether the entire farm planning and overall management measures are matched. Whether the temperature, humidity, density of the group, etc. are appropriate. Whether the management is standardized and whether there are standards.

Second, determine the specific causes of diarrhea

Stress factors: may be diarrhea caused by changing feed, or may be diarrhea caused by improper insulation measures.

Microbial factors: including bacteria, viruses, fungi, chlamydia, etc., each of which may cause diarrhea, but which type of diarrhea needs to be screened according to the clinical symptoms and according to the laboratory diagnosis.

Parasitic factors

Third, the processing method

Don't deal with small pigs, and treat them immediately after diarrhea. After a litter of piglets has diarrhea, treat it immediately and do not affect other piglets.

Pigs before 7 days of age do not have to be treated, and treatment has no value. Instead, it will give the virus a chance to proliferate and spread. Pigs between the ages of 8 and 14 days of age can choose whether to treat or not, and they can be treated by foster care. Choose electrolytes, vaccines, and even some serum to relieve the clinical symptoms.

If the pig after 15 days of age is still diarrhea, you can choose to wean early.

Difficulties in preventing and controlling African swine fever

African swine fever is a severe disease with high mortality and a short incubation period. According to these characteristics, it should not be spread over a large area. However, there are many factors in our country's communication, mainly through three links, sources of infection, routes of transmission and susceptible animals.

I don't know what the source of infection is.

In fact, the source of infection has not really been made clear until now. Whether the source of infection comes from live pigs, from dead pigs, or from pig products, we have no way of knowing. We need to investigate well, otherwise we don't know what to guard against.

I don't know what the route of transmission is.

The route of transmission can be air, soil or transportation, and all dealing with the farm is possible. We can choose not to go out to purchase things, but there is also the possibility that the hidden products of a type of product will be affected by other products. So we don't know how it came in.

Is the outbreak of African swine fever a turning point in the development of domestic aquaculture?

There are large differences in the level of pig breeding in China, and the government can subsidize, but there will be some problems. In this case, if the disease exists in a certain farm, as a common citizen, it is impossible for every pig to get the disease to the country. The time is slower and the feedback is slower. After the national test results come out, it means culling. So even if I know that it may be African swine fever, I will deal with it directly, and slowly this disease will become a local epidemic. The Ministry of Agriculture and Rural Affairs announced that it allows third-party institutions, universities, and some qualified units to conduct inspections, and the epidemic control departments act simultaneously. This is also a good aspect, but it still requires a process of regulation and management. Therefore, African swine fever will bring great changes to all aspects of the national pig raising model, which will greatly reduce the number of free-range households, but it will enable the government to have a clearer understanding of the entire chain of the households.

Summary

We must focus on biosecurity, we must focus on operational processes, we must focus on overall management practices, and so on. Pig farming requires a relatively clear access mechanism, and it is going to scale and standardize. Professional service companies are needed to do professional testing. We want to spread some correct ideas and ideas.


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