Today, the pig industry faces the challenge of African swine fever. Where to go? How to prevent and control African swine fever is a top priority.
Recent industry conferences have continued, and meetings of different companies on the prevention and control of African swine fever have been held intensively. However, it can be found that more and more experts and pig companies are exploring “feed safety†and “high temperature granulationâ€.
As early as October 2018, Fan Fuhao researchers in the industry took the lead in paying attention to the risk of feed transmission of African swine fever, and suggested that pig farmers "feed high-temperature granulation" and "develop feed maturation technology" and other concepts.
This view spread widely in the Internet WeChat group and circle of friends, and caused great controversy. In addition to "high temperature granulation", in fact, Fan Fuhao researchers also took the lead in proposing "saliva detection", "tooth extraction", "drug breeding", "protecting susceptible animals" and other ideas and concepts. These views have aroused great concern in the industry, and there are approvals, doubts, and denials.
The development of the industry is inseparable from the experts who dare to tell the truth. It is inseparable from the atmosphere of contending for a hundred schools of thought. It is inseparable from every "spirit" of responsibility, mission and practicality.
The impact of African swine fever on the industry is undoubtedly unprecedented. Everyone in the industry is not a bystander. We need to be united and fight against each other!
Recently, the pig information network interviewed Fan Fuhao researcher, and then talked about feed safety and feed heating technology standards. The following is an excerpt from the interview:
Pig Information Network: As proposed "prevention and control of African swine fever - high temperature feed pelleting," the first person concept, how do you look at the problem of the spread of African swine fever epidemic by way of it feed
Fan Fuhao: As early as last October, I have already proposed that feed is one of the most important media for the spread of African swine fever in China. Feed pollution must be taken seriously. At first, the concept of “high-temperature granulation†of feed was questioned by many people; nowadays, the epidemic situation of feed pollution has been confirmed, and everyone has begun to pay attention to the concept of “high-temperature granulation†of feed, and has increased the prevention and control of feed pollution.
There are data in epidemiological studies that indicate that, unlike blood-borne viruses, the digestive tract viruses are generally “heat-sensitive†and are easily inactivated at high temperatures. African swine fever virus can be inactivated at 56 ° C for 30 minutes; at 60 ° C for 20 minutes, 80 ° C is enough to instantly inactivate African swine fever virus. According to the above conclusions: whether it is drowning or feed, it can be pre-treated with "heating" technology to inactivate the virus.
Pig Information Network: What are the sources of contaminated feed? And what are the criteria for your proposed “heating†technology?
Fan Fuhao: The source of contaminated feed is very clear: feed additives and bulk raw materials.
High-risk pig product additives are added to the feed, including plasma protein powder, meat and bone meal, and adulterated fish meal (containing plasma protein); bulk materials include contaminated corn, bran, and fish skin.
Therefore, it is prudent to add high-risk pig source products to the feed, and it is recommended to "one-time treatment" after making the feed. A variety of raw materials are required in the preparation of the feed. If each raw material is treated separately, there is a risk of contamination during the processing, the addition process, and the processing.
Fan's disinfection standard: 80 ° C, 180 s; 85 ° C, 60 s. Scientific evidence proves that through such disinfection standards, the safety of feed can be greatly improved.
For large-scale enterprises: It is recommended to "high temperature granulation". High-temperature granulation is not equivalent to full-price materials and pellets, and feed must be made by "high temperature".
For small fields: powder is recommended to adopt "heating technology"
For the free-range households: (泔水) must be cooked in principle, the state has also stipulated that the use of drowning water is prohibited.
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