First, pay attention to the choice of pig species. During the introduction, the appearance, growth and development, pedigree, and genetic defects of the pig should be strictly examined. The characteristics of the breed must be obvious, the reproductive function should be vigorous, and the pedigree card of the pig species should be brought back in order to be kept for reference 2. Pay attention to the local environment. The introduction of fragrant pigs must meet the local people's living consumption levels and economic development needs. At the same time, we must understand the characteristics of breeds, climate, feeding and management, in order to determine the domestication of terroir after the introduction of pigs, and create the necessary feeding and management conditions, so as to ensure the effectiveness of the pig breeding. Third, pay attention to the time of the season. When the pig is introduced, it is best to end the spring and after a warm summer, to spend the autumn and winter season when the temperature gradually decreases, and to require the cold protection work after winter, and gradually adapt to the local natural conditions. Fourth, pay attention to pig age. The introduction of pigs is best to introduce young pigs of about 4 months of age or older. The pigs are at a young age and have strong adaptability and are easy to accept the changed external living conditions. The pigs introduced at the beginning should not be bred and should be concentrated in one or several pig farms to create a good breeding and management condition for feeding. At the same time, they should make observation records, do a good job in breeding and breeding, and gradually expand after adaptation. . Fifth, pay attention to epidemic prevention. When introduced from other places, the animals should be kept in isolation for 1 to 2 months. The prevention and disinfection should be strengthened. The threat of exterminating and preventing endemic parasitic diseases and infectious diseases should be taken care of to ensure the safety of the introduction of pig breeds. China Agricultural Network Editor
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