What health drugs are best for pigs?

When it comes to the topic of pig health care, many friends in the pig industry are most concerned about "what health care drugs are the best", as if "health care" means how to use drugs and what drugs to solve this problem once and for all, "one dose of good medicine will keep you safe". In particular, pamphlets such as "Pig Health Care Plan" issued by some veterinary drug factories and distributors are actually guiding people to use more drugs. This idea is very one-sided. The contents of pig health care are more extensive, including how to create a healthy living environment for pigs, how to reasonably improve the nutritional level to make pigs have stronger disease resistance, and how to immunize pigs against specific pathogens. Drug health care is only one aspect and can only be a remedial measure to prevent the failure of the above programs. In order to help novice pig-raising friends better understand, the old man briefly talked about his views on the above issues. First, improving the environment is the foundation. Without a good environmental foundation, the effectiveness of other measures to maintain the health of pigs will be greatly reduced or even wasted. How to create a good environment? The old man thinks that we should mainly start from the following aspects: the first is site selection. The main problems to be considered are to be as far away from human settlements and other animal breeding areas as possible, to have sufficient pollution-free water sources, normal power supply and convenient sewage discharge. The second is the layout. As far as possible, the leeward is sunny, so that the dirty road is separated from the clean road, and the building spacing is reasonable (the spacing should be about 4 times of the eaves height, and the minimum is not less than 2.5 times. If the land use factor is not considered, of course, the distance can be larger. ) to facilitate ventilation. The third is the transformation of the small environment in the house. Establishing green belts between buildings can not only protect against wind and shade, but also make the air fresher. At the same time, the insulation measures of pigsty should consider the need of ventilation. Fourth, establish a strict indoor disinfection system. About the system and method of disinfection, all kinds of books and articles about pig-raising technology are introduced in detail, so I won't go into details here. What needs to be reiterated is the principle of drug selection and replacement. First, drug-resistant varieties can't be used for a long time, but they can't be replaced too often, otherwise pathogens will be resistant to various disinfectants, and no medicine is available. Two, strong pungent smell or corrosive drugs, should avoid contact with pigs disinfection, avoid contact with metal equipment. Under the conditions of suitable internal and external environment, combined with the isolation system of personnel, vehicles and other disinfection systems in the field, the threat of pathogen transmission can be reduced as much as possible, laying a good foundation for pig health. Second, strengthening physical fitness is the key. Pig's physique is the internal factor and the key to determine pig's health. If the pig is in poor health, no matter how well other work is done, it is impossible to keep everything secret, and in the end it may all fall short. To enhance the physique of pigs, the old man thinks that we should mainly start from two aspects. The first is seed selection, that is, selecting varieties with strong resistance. At present, there is an abnormal tendency in the pig industry, and the newer breed seems to be a symbol of the high level of pigs, which hinders the creativity of China people. In the previous blog post, Ben Xian repeatedly called on the country to pay attention to tapping its own variety resources. Its adaptability, meat quality, taste and reproductive ability are beyond the reach of any introduced variety at present. Let's not talk about the waste of funds for the time being, because the most important thing for enterprises and people in China and some China is money. But at least it can avoid the risk of repeatedly introducing new pathogens. The old man boasted here that the day when China people's impetuous atmosphere reversed was the beginning of the end of introducing new pig breeds. Let's stop these seemingly off-topic topics. From the point of view of disease resistance, the more exotic varieties, the more indisputable fact. Secondly, we should work hard on management. In addition to providing pigs with comfortable living space as much as possible, dealing with details such as density, ventilation and humidity, and doing a good job of cooling down and keeping out the cold, a balanced diet supply is the material basis for pig health. The use of non-nutritional additives should arouse our full attention, and our suffering on this issue should not be easily forgotten. Not to mention increasing the cost, the damage to the health of pigs and the risk of food safety should be within our consideration. 3. Reasonable immunity is the basic immunity, which is one of the important measures for pig farmers to reduce the risk of epidemic diseases, but the elderly think that rationality is the fundamental. If all vaccines are mixed, it will not only waste money and manpower, but also be harmful to the health of pigs. In particular, some live vaccines and vaccines (attenuated vaccines or attenuated bacterial vaccines) are very weak, and viruses or bacteria are at risk of becoming more virulent, which has caused great losses to some pigs. What is reasonable? The situation of each pig is very different. I am too modest to make a unified immunization plan and plan for my friends here, but we should follow some important principles. This is: 1. Only fight diseases that threaten this area, otherwise don't fight them. What is a threatening disease? There are some differences in different regions, but the widespread diseases such as swine fever and foot-and-mouth disease are not only compulsory varieties stipulated by local animal husbandry management departments, but also varieties that pig farmers dare not give up immunization easily. For some diseases that have never happened or have little impact and are easy to cure, you can try not to fight. 2. Viral disease immunity is far more important than bacterial disease. This is because viral diseases are not only difficult or even impossible to treat, but also viruses in the environment are more difficult to kill with general disinfection measures than bacteria. 3. It is best not to fight the vaccine with uncertain effect. The reason is that since the effect is uncertain, spending money can't buy peace of mind. What's the need? Some of these vaccines can indeed produce low-level antibodies, but in the presence of a pathogen and in a relatively balanced condition, the characteristics of low-level antibodies to accelerate bacterial reproduction and virus replication often induce disease outbreaks and cause irreparable losses. 4. Strictly implement the immunization interval and the best immunization age. On the one hand, any vaccine can stimulate the immune system of pigs to produce immune function, and some vaccines cannot produce antibodies and antigens in pigs with imperfect immune function. Furthermore, many experiments have confirmed that the ability of pigs to produce antibodies under stress is greatly reduced. The third point to note is that some pathogens have limited effects after infection, so it is necessary to immunize pigs before infection. All these constitute the necessity of mastering the best immunization day age and implementing immunization interval. This is a matter of principle that the old people think we should pay attention to. Although the operation technology is also very important, I believe all friends are familiar with it, so I won't go into details here. Fourth, careful medication is the guarantee of drug health care. Although it is a remedial measure in pig health care, its importance cannot be ignored. However, the elderly have always emphasized "careful use" in drug use, which means that drugs can be used, but they cannot be abused. As we all know, the consequences of drug abuse are: first, the indirect harm of drug residues to the human body; Second, the waste of funds; Third, the drug resistance of pathogenic microorganisms has increased. When the pig is really sick, there is no medicine available or the effect of medication is greatly reduced. Fourth, the "three-point toxicity of drugs", even if it is non-toxic or low-toxic, may increase the burden of liver and kidney function in pigs, and even directly damage liver and kidney function. Under what circumstances can I take medicine? The elderly think that appropriate medication can be considered in the following situations: pigs transported for a long distance, pigs with complex sources, and pigs with suspected infectious diseases in the herd; In addition, if serious infectious diseases break out in the surrounding area, preventive drugs can be given appropriately for safety reasons. My personal opinion is that it is not only undesirable to add antibiotics to feed for a long time, but also some non-nutritional functional additives should not be abused. Some of these additives may have obvious short-term growth promotion effects, but in the long run, most of them will have negative effects on the health of pigs. Others only work at a certain stage of pig growth. For example, enzyme preparations and acidifiers have obvious effects on piglets, but they are not necessary for big pigs. Others can only be used under certain conditions. For example, mildewproof agents need to be added when the processed feed is left for a long time, and mildewproof agents can only play a role when the raw materials are moldy. The health care of pigs is a systematic project, and any one-sided understanding is wrong. We can't let some drug dealers with the sole goal of making money lead by the nose, nor can we exclude all correct guidance and the application of new technologies. As many friends know, we have to work hard in all aspects, and sometimes failure is often due to mistakes in details.