How to resume aquaculture quickly after the end of African classical swine fever? What are the difficulties in rehabilitation? With expert advice

We should have a certain understanding of the situation of classical swine fever in Africa. Perhaps many farmers are not affected, but they should not be taken lightly. So how to quickly resume farming after the end of African classical swine fever? What are the difficulties in rehabilitation? Let's see what the experts say!

First, there are six minefields and four difficulties in rehabilitation.

If farmers consider rehabilitation, they should control the key risk points well. at the same time, some common parts of successful cases can be used for reference. There are six minefields in rehabilitation that require special attention:

First, the environment is poor, there is an epidemic around, and the virus is contaminated widely, so it is not suitable for rehabilitation.

Second, there are major defects in the location of pig farms, such as pig farms are too close to traffic roads, slaughterhouses, manure treatment plants, animal trading markets, etc., which is not conducive to rehabilitation.

Third, they are unwilling to invest in the construction of necessary facilities and equipment, such as special vehicles for pig transfer (preferably with an air filtration system), testing centers, pig stations, washing centers, disinfection channels, material transfer stations and personnel isolation centers, it is difficult to block African classical swine fever.

Fourth, decision makers and executors are blindly optimistic, which makes the preparatory work in the early stage of rehabilitation not sufficient and meticulous, which leads to the failure of rehabilitation.

Fifth, sample collection and testing are not comprehensive and not in place (including production area, living area, office area, environment should be fully sampled, professional testing laboratory should be established, sensitive and specific testing methods should be adopted)

Sixth, the rehabilitation work is not systematic, not solid, and can not grasp the key points, resulting in loopholes in many links in the rehabilitation. For example, the hardware facilities do not meet the biosafety requirements of African classical swine fever prevention and control, the supporting operation process is unreasonable (it is best to carry out expert demonstration), or the implementation is not in place (to establish a sound supervision mechanism and reward and punishment system) and so on.

The difficulties of pig farm restoration mainly include the following four aspects:

The decision-makers and main executors of pig farms lack enough attention and scientific understanding of African classical swine fever; the decision-makers and main executors of pig farms lack scientific and systematic knowledge and culture of biosafety of pig farms; the corresponding systems and norms can not be effectively landed and supervised; lack of performance management and humanistic care for employees.

The above factors will greatly reduce the effect of the preparation work before the pig farm rearing, can not effectively check the deficiencies and make up for the leaks, and any small mistakes will lead to the difficulty of successful rearing.

Second, the rehabilitation process includes ten key links

Pig farms have to do a lot of meticulous preparation before they can begin to recover. The preparatory work includes cause analysis (epidemic review), comprehensive elimination and evaluation of pig farms, hardware upgrading (that is, "structured anti-Africa" advocated by Guangxi Yangxiang), optimization and standardization of operation process, breeding of sentinel pigs, pre-post training and assessment of personnel, disease surveillance before entering pigs, and so on. The steps of pig farm rehabilitation can be summarized as follows:

First, general environmental assessment (for example, whether the site meets the PIC 1000-point scoring requirements, and whether there is an epidemic in the vicinity); second, profound reflection and comprehensive review before rehabilitation (analysis of the causes of African swine fever and assessment of major risk points inside and outside the field); third, checking and filling gaps (upgrading of facilities and equipment, improvement of management system and process); fourth, comprehensive cleaning (disinfection + cleaning + disinfection + fumigation + drying) Fifth, evaluation after washing (comprehensive sampling and professional testing); sixth, feeding of sentinel pigs, continuous dynamic monitoring; seventh, systematic training and assessment of personnel before taking up the post, perfect emergency plan and simulation exercise; eighth, health inspection and pathogen surveillance of pigs to be introduced; ninth, careful preparation before pig transport (formulation of detailed transport plan) and whole process monitoring of pig transportation; tenth, formulation of emergency plan and exercise.

Each of the above links is very critical, as long as there are loopholes in one of the links, rehabilitation is likely to fail. Among them, the hardware is the foundation, and the software (strict management system, perfect operation flow and the comprehensive quality of pig farm personnel) is the guarantee.

Three or four tricks to find loopholes in each link

How to find loopholes in each link? The four suggestions are as follows:

1. Self-inspection and self-correction:

Set up full-time biosafety personnel, set up biosafety self-check list, check and improve it regularly.

2. External audit:

As the staff in this field are not easy to detect the problems in this field, we can invite external biosafety experts to review them.

3. To stimulate endogenous motivation:

Establish a reward and incentive system to encourage employees to actively look for hidden dangers and loopholes.

4. With the help of intelligent equipment:

Conditional pig farms can set up monitoring or intelligent systems at major risk points and key operating nodes to review and analyze regularly to find and improve problems.

Related reading: what are the symptoms of African classical swine fever? What happens when people eat it? Attached treatment measures