First, pseudo-rabies
Jinbao veterinary expert: Generally speaking, pseudorabies can be effectively controlled by the combination of vaccines and diagnostic methods. Many countries in Europe and America have already cleaned up the disease many years ago. And the visits to Chinese farms over the years have found that pseudorabies domestic or imported vaccines are still doing well, so pseudorabies should not be a major problem. As to whether or not the pseudorabies virus in northern China has been mutated, no relevant reports have been reported so it is not easy to draw conclusions and it is necessary to consult the scientific research institutions of the relevant provinces. For the control of pseudorabies, special attention should be paid to the flow management of the herds and resolutely put an end to the combined breeding of pig rearing pigs and commercial finishing pigs. Once polyculture, it will cause commercial finishing pigs to transmit pseudorabies virus to pig rearing pigs (reserve pigs). When the rearing pigs are grouped with breeding herds, it may cause widespread spread of pseudorabies virus in breeding herds. It is worth noting that once a pig is infected with the virus, it will be poisoned for life.
Supplementary Reference: The 8 most popular pseudorabies virus isolated from Huanong in 2011 were sequenced and found that some of the popular wild type and classical pseudorabies viruses had multiple bases at the TK, gB, gC, and gE gene loci. Mutations and deletions of the bases, deletions of these mutations may lead to changes in the virulence or antigenicity of epidemic strains, but further studies are needed.
Second, foot-and-mouth disease
Kinbok Veterinary Expert: Foot-and-mouth disease is an exotic disease that can only be introduced if the farm's biosafety is not done well. The occurrence of foot-and-mouth disease is also an indicator. It indicates that the farm's own bio-safety prevention and control has been overlooked. If foot-and-mouth disease can be introduced into the farm, other infectious diseases may also be introduced. Therefore, it is necessary to strengthen the farm's bio-safety, regulate the operation of the pig farms, and do a good job of immunization. It is recommended that breeding pigs should be vaccinated with their babies, and finishing pigs should have at least two vaccines. After the vaccine is completed, biosafety measures are implemented, and no new foot-and-mouth disease virus is introduced, it is generally not likely to develop. If the disease is still present, the virus may mutate. This requires government departments to inspect and isolate new epidemic strains. Whether it can be controlled by existing vaccines and whether it is necessary to develop new vaccines.
Jinbao fermentation bed breeding to prevent pig disease
Third, blue ear disease
Jinbao veterinarian expert: Many pig farms in China are now affected by highly pathogenic blue ear virus. Once the virus enters the farm, it is difficult to remove it. At present, many of China's large-scale pig farms have their own core breeder herds. They began to consider the control of the ancestral and ancestral pig blue-ear virus as negative.
Must not rely on frequent vaccine immunization to control the blue ear disease in the core breeding herd, because the blue ear virus itself has the immune evasion effect, and is easily mutated. Frequent immunization will cause the virus to mutate and cause immune failure; and the current blue ear disease vaccine It is not perfect in itself, and it has problems such as poor cross protection.
First of all, we need to know that the blue ear virus has three major categories: European strains, American strains, and highly pathogenic strains. There are many subgroups in each category. In China, where live vaccines are widely used, the same pig is used. It is highly likely that several blue ear viruses will be isolated in the body, and there will be some differences in the homology between the viruses. Therefore, when we choose a vaccine to control blue-ear disease in pigs, we cannot effectively protect every blue-ear virus in pigs. When we control a blue-ear virus, the second and third blue-ear viruses are difficult to effectively protect due to their low homology with the immunized vaccines, resulting in several outbreaks of blue-ear disease in one year. The outbreak of blue ear disease was probably caused by different blue ear virus strains.
Summarizing years of clinical and scientific research experience, we must do the following to control the blue ear disease:
First, to prevent viremia, and the resulting vertical transmission;
Second, reduce the spread of virus in infected pigs;
Third, to prevent the blue ear virus mutation;
Fourth, review whether the flow of farm pigs is reasonable;
In addition, the latest study in the United States found that there is a certain genetic gene on the fourth chromosome of the pig and on the X chromosome. This gene determines the natural resistance of the pig to the blue ear virus. This means that the United States has begun to study pigs that have natural resistance to PRRS, and also suggested that we should actively eliminate blue-ear virus-sensitive pigs.
Additional Reference: The US Department of Agriculture conducted a blue-ear virus challenge test on 2600 pigs on 6 breeding farms. The results showed that pigs can be divided into three types of pigs: blue-ear virus-sensitive pigs (high viral load/low body weight gain Amounts), blue ear virus resistant pigs (low viral load/high weight gain) and blue ear virus tolerant pigs (high viral load/high weight gain). This provides the best evidence for the existence of subspecies sows, suggesting that some herds may have blue-ear virus resistance; that is, even if the virus load is relatively high, this part of the pig can remain normal. Grow.
In terms of image, our herd can be likened to a watermelon. When it suffers from the blue ear virus, the inside of the watermelon shows three colors: The green part shows pigs that are naturally resistant to the blue ear virus. This part of the pig recovered quickly after being challenged by the blue ear virus; the red part was a susceptible pig with the blue-ear virus, and this part of the pig would suffer from the blue-ear virus attack and even die; the middle part of the orange, Representing pigs that are immune to the blue-ear virus, these pigs developed morbidity after being challenged by the blue ear virus, but were never able to return to their pre-infectious state. They were called sub-healthy pigs, that is, pigs that were infected in vivo.
IV. Circovirus
Kinbok Veterinary Expert: The circovirus is associated with a variety of diseases in pigs, such as PMWS, PDNS, and PRDC. However, practice has proved that it is not difficult to control circovirus as long as the vaccine is used consistently. We must adhere to vaccine immunization for the core group of pigs, especially boars. In addition to regular vaccination, we must also pay attention to the day-to-day management of boars. You can't pull boars out of a boar to find out what's going on, but you can't pull boars that are not in heat into boars because the circovirus can spread through semen.
Supplementary Reference: If farm pigs in Thailand have never used a ring vaccine, the first round of vaccination must be applied to all pregnant sows, replacement pigs, and boars twice, separated by three weeks, and then Pregnant sows are given a round-to-needling vaccination, and a single dose of a ring vaccine is injected 5 weeks before the sow or 11 weeks of pregnancy to increase maternal antibodies to the sow. Ensure that the sows are normally fed and lactated, and that piglets can eat fresh colostrum on time and that they have sufficient maternal antibodies. It is recommended to immunize the piglet with a round-vaccine vaccine at 21 days of age. The immunization time of piglet ring seedlings should not be too early. Premature immunization will lead to the neutralization of maternal antibodies (study confirmed that ring seedlings can also neutralize maternal antibodies); It is recommended to use water adjuvant to inactivate vaccines and try to avoid using oil adjuvant vaccines.
Disease prevention is greater than treatment - Fermentation bed pigs is a tool to prevent disease and promote long
People who have raised pigs know that biosafety and continuous improvement of the feeding environment are often more important than medications. The unique fermentation bed of Ginbaby piglets uses a powerful functional microbial flora to treat manure as a nutrient source. , The litter mixture gradually warmed fermentation, the central fermentation layer temperature of 35 ~ 45 °C or higher, the surface temperature in winter and summer, the basic temperature (25 ~ 28 °C in summer, winter 10 ~ 15 °C), so that the fermentation bed is quite So a warm "hotbed." Compared with cement sheds, piglets “live†in such a warm environment. They are rarely affected by changes in temperature. They eat well, they have a good night's sleep, their abdomen is not easy to catch cold, they are naturally lively and healthy, their diarrhea rate is greatly reduced, and their growth is good. What's more important is that pigs in the fermentation bed have less feces and urine and naturally noxious and harmful gases such as ammonia gas. If the pigs grow in a suitable environment, the immunity of the herd will increase geometrically.
The fermentation mattress material contains a large number of beneficial bacteria and bacterial flora and a variety of probiotic metabolites produced by the beneficial bacteria flora. Through the pig's eating habits, it will enter the pig's gastrointestinal tract, and beneficial microorganisms will continue to improve the herd The intestinal health prevents the occurrence of intestinal diseases. More details about the fermentation bed, fermentation agent, microbial fertilizer and other exciting content, please pay attention to the Jinbi fermentation bed official website () or call our hotline: 010-62110749, 63623048, 13269217468 free hotline
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