Wild breeding technology of domestic pigs \x0d\ 1. The following factors should be considered in the selection of the site for wild breeding of domestic pigs: First, broad-leaved forest or mixed forest with an average age of more than 30 years should be selected as the woodland, with dense stands, more fruits, wild vegetables and edible weeds under the forest, and sufficient water sources, which can not only avoid the damage of wild boar to trees, but also ensure adequate feed. Second, the number of wild boar should be in reasonable proportion to the area of forest land. Generally, it is appropriate to raise 3-5 pigs per hectare of forest land, and the stocking amount of each stocking point should not exceed 120 pigs. Third, the stocking place should be more than 5 kilometers away from residential areas and cultivated land to prevent people and animals from disturbing wild boar and destroying crops. Fourth, there are no large carnivorous wild animals in the stocking point and surrounding forests. \x0d\ II。 Construction of simple pens and nursing rooms \x0d\ pens and nursing rooms should be built in the middle and lower part of the ravine, with convenient transportation and light transmission. Pen houses can be made of wood, stone or brick, with the leeward facing the sun and waterproof and muddy ground. Because the pen is mainly for pigs to rest at night, the area is not easy to be too big, generally each head. \x0d\ III。 Preparation before raising domestic pigs in the wild \x0d\ 1. The choice of wild boar. Choose ternary or binary hybrid piglets with faster growth rate, weaker stress and higher lean meat rate. The main varieties in northeast forest region are Changbai× Yorkshire× local varieties or Duroc× Yorkshire× local varieties. Piglets should be healthy and disease-free, and basically the same size. 2. Do a good job of deworming, immunization and castration. After buying a piglet, you must first carry out insect repellent. Immunization of various diseases should be completed before going up the mountain, and immunization should not be carried out after going up the mountain. Uncastrated piglets should be castrated in time to prevent pigs from mating in the wild. \ x0d \ 3。 Short-term home feeding. The newly weaned piglets have strong stress and severe response to climate change, which is not suitable for immediate wild feeding. At the same time, the snow-free period in the mountains of the northeast forest region is only about six and a half months, and the weight of pigs is too low in the early stage of wild breeding. Before the mountain is closed by heavy snow, it is necessary to raise 1-2 months at home, and the significance of raising wild boar will be lost. Therefore, piglets should be purchased in the middle and late February, raised at home for 45-60 days, weighing about 30-35 kg, and released in the middle and late April of' 65. \x0d\ IV。 Feeding management of domestic pigs raised in the wild \ x0d \ 1. Domestication at the initial stage of stocking. Pigs are carnivores, live in groups and swim in the natural environment. If they are not domesticated, they will not come back. Therefore, pigs should be kept in captivity for 3 days at the beginning of going up the mountain and fed 2-3 times a day to familiarize them with the surrounding environment. From the fourth day, the pigsty should be opened, allowing pigs to move freely and eat wild fruits and plants nearby. Feed pigs 1 time at night, mainly when you are full. When feeding, it is necessary to cooperate with some acoustics, such as shouting or knocking on the food bowl, to call the pig back, so that the pig can form a conditioned reflex, and the habit of returning to eat and rest at night can be formed in one week. Once a night, pigs are fed until eight o'clock, and they will be hungry the next morning, prompting them to feed in the forest. When pigs are foraging in the forest, they usually take part in group activities, foraging from near to far. Eat hard fruits and delicious wild vegetables such as acorns, hazelnuts and walnuts first, and then eat weeds and edible grass roots. If you can't pick it nearby, you can swim farther, as far as 3-4 kilometers away from the fence, but you can swim back in the afternoon and go back to the fence for dinner and rest at night. \ x0d \ 2。 Supplementary feeding. Pigs feed on wild plants in the wild environment, which can not fully meet the growth needs of pigs and must be supplemented to some extent. Generally, pigs feed freely three days before going up the mountain to adapt to the environment, reduce the amount of compound feed from the fourth day, and feed it once every evening after one week. In the wild, with the gradual increase of pig feed intake, the supplementary feeding decreased. Pigs are fed 600g of compound feed every day in the early stage of wild breeding, 500g of compound feed every day in the middle stage of wild breeding and 400-450g of compound feed every day in the late stage of wild breeding. The feed ratio is: king rice flour 57%, bean cake 14%, concentrate 14% and bran 15%. \ x0d \ 3。 Observe with your heart. Pigs are very active in the wild, so it is difficult to observe them with the herd. Count the number of pigs when they return every evening, and carefully observe the eating state, mental state and feces state of pigs. As long as the pigs that don't return are found in time and the reasons are found out, it is not normal for some pigs to sleep in a dry place under the tree after eating in the wild. Domestic pigs are raised in the wild, which have strong activity and disease resistance, and are generally not easy to get sick. Sick pigs should be isolated and treated in time, and then released into the wild after illness. \ x0d \ 4。 Prevent poisoning. Pigs have instinctive discrimination against poisonous plants and generally do not take the initiative to eat poisonous plants. However, some pigs sometimes have symptoms such as vomiting, excitement and difficulty breathing after eating toxic plants such as Veratrum nigrum and Hemlock, so necessary symptomatic treatment should be taken. At the same time, cooperate with intramuscular injection of powerful antidote and take antidote such as white wine or mung bean water. \ x0d \ 5。 Row at the right time. Domestic pigs raised in the wild for 6-7 months gain 350-450g daily, with an average of about 400g. When the weight reaches 65,438+000-65,438+020 kg, it should be released in time, starting from the first ten days of 65,438+00, and gradually entering the release period. \x0d\ V. Benefit Analysis of Wild Breeding Domestic Pigs \x0d\ Under the condition that the piglet price is the same as the cost of epidemic prevention treatment, each pig in wild breeding only uses compound feed 150kg, which is half of that of ordinary domestic pigs, and the feed cost per pig can be reduced by 2 10 yuan. Pigs grown in wild environment have delicious meat, rich meat flavor and high lean meat rate, which are well received by consumers. Each pig can sell more 100-200 yuan, so the income from raising pigs in the wild is very considerable. Judging from the practice of developing domestic pigs in Fusong County of Jilin Province for three years, each wild boar can get a net profit of 350-400 yuan, which is more than twice that of ordinary pigs.