The formation of high-yielding sows cannot adopt pigs with "forms"

The continuous improvement of a sow’s health on a farm can maximize the performance of the sow, thereby increasing productivity and profitability. It also provides the basis for the production of safe and healthy food. A high-yielding sow group can increase the annual slaughter of pig farms, effectively reduce the production costs of pigs, and increase profitability. Therefore, the establishment of a healthy high-yielding sow herd is the key to achieving the final benefits of a farm.

I. Establishing a healthy and productive core group

All pig producers understand that the health of a sow herd on a farm directly determines the health of the entire herd, while the health of the herd is a state of dynamic equilibrium. As the environment changes, external factors interfere with the health of herds. It will break its original equilibrium and unpredictable lesions will occur. In order to maintain a strong productivity of the sow herds, the producers had to update the sow herd on schedule. The annual turnover rate of sows in a commercial farm is about 30%, and the annual turnover rate of a breeding farm is about 40%. A large number of reserve pigs will maintain or enhance the productivity of the pigs, but it will also break the original. The dynamic balance of the pigs brings unforeseeable troubles to the production. It can be seen that the supplementation of the reserve pigs has become a key factor that restricts the health of the entire herd and requires the carefulness of the producers. People usually use supplemental reserve pigs in two ways. The first one is introduced from other fields, and the second one is reserved in this field. Most commercial pig farms and a few breeder farms adopt the pattern of introducing excellent breeding pigs from the field when filling pigs. However, we also understand that while introducing excellent genes, it is also possible to introduce unknown diseases. Future production brings trouble. Many field leaders are tomorrow, careful analysis of the incidence of swine, mostly due to introduction caused by, so we remind the attention of the introducer "carefully introduced", introduction not only to consider the performance of pigs and appearance, but also to understand Health status, and at the same time, our cultivators will tell the introducer of their own epidemic prevention treatment without any reservation, so that the introduction of the field knows oneself and the other, so that they cannot be passive. The best way to fill reserve pigs is to stay in the field. To reserve and reserve this field, we must set up our own purebred breeding group. Therefore, when we introduce Binary pigs, it is better to introduce a certain number of original breed pigs. Timing reserve pigs provide the basis. When introducing new farms, after detailed inspection, in consideration of the principles of health and performance, determine the introduction of farms, and introduce outstanding breeder pigs with broad bloodline according to the size of the herd to form a core breeding group. Some old pig farms introduce the core group firstly through purification or blood test to eliminate some virulent pigs that are unfavorable to the pigs. After blood tests, we can know the antibody levels of various diseases in the pigs and thoroughly understand our pigs. Based on the group's health level, we introduce excellent breeding pigs that are healthier than their sows and do a good job of seed selection, isolation, and various necessary immunizations before they are merged into the basic group. The renewal of the core group also strictly controls the health standards. File records.

Under the circumstance of grasping the principle of health, we must choose the high-producing breeding pig as the female parent, and the boar with fast growth, good shape, and strong male as the male parent. At present, the ideology of pig producers in the South is more advanced than in the North. They can formulate scientific introduction schemes in combination with the actual situation in the field. The pig producers in the North often pay too much attention to the pig's body shape, which makes the production more difficult and the overall benefit is not high. We recommend long-term determination of introduction from a farm or a company, avoiding multiple introductions as far as possible, and selecting a large breeder company with good brand, good service, and good reputation, always putting the sow's health and high yield first.

Second, the pig health plan and regular health testing

Healthy and productive sow herds are the basis for normal production. In order to maintain or ensure the long-term health status, a strict and scientific health care plan must be established. In recent years, due to the high density of large-scale pig farms, infectious diseases are the main factors. Incidence and mortality rate are on the rise. Once the pathogens invade susceptible pigs, they will soon be involved in the entire population and cause significant economic losses. The current swine disease has changed from typical to non-typical mild or subclinical. . The persistence of new diseases and the persistence of old diseases, due to genetic variants of pathogens or changes in serotypes, make epidemic prevention more and more difficult, and the epidemic of the atypical diseases caused by the mutation of pathogens in the epidemic process, in order to stop the disease The troubles, the producers put forward prevention and prevention, because the prevention is active and the treatment is passive. We must establish a group prevention and group health plan. Therefore, we need to carry out a preventive vaccination plan and a regular quantitative drug addiction plan. , Parasite detection and control plans, nutritional indicators testing programs, etc.

Fully understand what diseases exist in the surrounding animal husbandry farms, combine the disease situation in the field, and then establish a reasonable immunization program, a reasonable choice of vaccines, master the correct vaccine injection method, inoculate according to the prescribed date, 10 days to 14 days after the immunization of pigs, About 10% of the pig's blood should be drawn, serum should be separated for inspection, and serum antibodies should be detected to determine the effect of herd immunity. If necessary, re-vaccination or adjustment of immunization procedures or replacement of vaccine manufacturers, adherence to quarantine and elimination of pigs with virulent poisons only. Although the pigs have been rigorously immunized, sometimes there are still cases where the immune antibodies are low or the pigs are in poor condition. They can be infected by the disease. In order to prevent early infections, we must take care of the pigs.

Third, make immunization work

Poultry farms with poor sanitation conditions should be injected with vaccines such as E. coli genotypes, red mite vaccines, infectious gastroenteritis, epidemic diarrhea, rotavirus, pulmonary infection, erysipelas, streptococcus, and infectious pleuropneumonia.

The breeding farms do a good job of immunization monitoring. After 10-14 days after the pigs are injected into the pigs, they are sampled to collect serum for inspection, check the growth of antibodies, and quarantine certain infectious diseases.

To monitor the negative of certain diseases, consider not using vaccines. In particular, the attenuated blue-ear disease vaccine should not be used for pregnant sows and boars of reproductive age. For the pig farms that are not seriously polluted, gene-free seedlings should be used. Attention should be paid to the use of gene-free seedlings from established manufacturers to prevent the combination of gene-free seedlings from multiple manufacturers and to prevent gene recombination.

Inactivated vaccines are best given 2 immunizations prior to mating, with an interval of 4-6 weeks for enhanced immunity. In case of outbreaks of swine fever, pseudorabies, and parvovirus, attenuated vaccines should be used as soon as possible for emergency vaccination. After the epidemic is stable or in the old epidemic area, inactivated vaccines are mainly used for purification.

Fourth, insecticide program

Parasites such as tapeworms, whipworms and cockroaches damage the body's immune system. It consumes large amounts of nutrients in pigs, makes pigs immune to dullness and reduces the resistance of the herds. Therefore, regular deworming is very important for controlling parasites. According to production practices, the following deworming methods are recommended:

The sow was subcutaneously injected with ivermectin 0.3 mg/kg body weight 1 month before going to bed and repeated 1 week apart.

The boars drive each time in the spring and autumn, with the same amount as above.

Weaned piglets (when the pigs were small in weight, use less drugs, and repelled eggs earlier) were transferred to nursery houses and fed ivermectin powder to the pigs for a total of 7 days. Repeated at intervals of 1 week.