How to manage breeding pigs introduced into pig farms?

1. Before introduction, in order to prevent the introduction of epidemic diseases, it is necessary to know the epidemic situation in breeding pig producing areas in detail and confirm that there is no disease before introduction. At the same time, we should also consider what diseases will happen to imported pig breeds under local natural conditions.

2. If some southern pig breeds are prone to pant disease after being introduced into Northeast China, we must pay attention to prevention and avoid the spread of the disease. Breeding pigs should not be put into the herd immediately after being attracted, and should be kept in isolation for at least 20 days. It must be considered that the breeding pigs attracted by blood relationship cannot be related to each other, and the breeding pig pedigree card should be taken back for future reference.

3. Don't introduce too much. Under normal circumstances, it should be enough for each large pig farm to introduce two or three excellent varieties with their own characteristics. Small pig farms can introduce one or two breeds of boars and carry out economic hybridization with local sows in a planned way to provide heterosis for fattening piglets. There are too many imported varieties, which are easy to cause mismatch and mixed pedigree.

4. Imported breeding pigs should adapt to the local natural conditions, sometimes imported pig breeds from other places will not adapt, get sick easily, can not reproduce normally, and bring losses to production. In this case, indirect introduction can be implemented.

5. It is necessary to consider the local breeding level, because the imported varieties need to be bred in addition to cross improvement of local pigs. If the adaptability is not good, purebred degeneration may occur. It is best to introduce a small number of breeding pigs first, find out the varieties with good hybridization effect, and then introduce a large number of breeding pigs. ?