Experience of raising purebred Xiang Pig

The purebred Xiang pig has a small body, black coat, dense coat, fine and glossy skin, dark skin, long head and flat forehead, vertical and horizontal wrinkles in the neck, small ears, hard ear roots, thin ears extending to both sides, obvious hairless area around the eyes, slight depression in the back and waist, large, round and drooping abdomen, short limbs, long tail like rat tail, and 5 pairs of nipples.

The breeding boars showed climbing behavior at the age of 2 months, and the sows were in estrus at the age of 3 months. The estrous cycle is 18-21 days, lasting about 4 days. At the age of 4 months, the gestation period was about 11.4 days. The average litter size of parturient sows was 5.6 and that of multiparous sows was 8.3. In feeding, we should strengthen the management of breeding boars, increase nutrition and make them exercise more. In order to prevent boars from masturbating, the boar pen should be built in the upwind direction of the sow pen, and at a certain distance, the boar should be raised in a single circle. The suitable mating time for sows is about 30 hours after the beginning of estrus. Sows should be raised in a single circle after 2 months of pregnancy to prevent extrusion and abortion.

Strengthen the management of suckling piglets and strengthen heat preservation, especially in winter, to prevent thieves and lay hay. Start eating early, piglets can be fed 5-7 days after birth (10-20 grams of activated carbon per kilogram of feed to prevent diarrhea). The piglets were weaned at the right time, the birth weight of piglets was 0.5 kg, and the weaning weight of 2-month-old piglets was 3-5 kg. The piglets were immunized in advance, that is, the piglets were injected with classical swine fever vaccine before eating colostrum after landing, and the piglets could not eat colostrum until half an hour after injection. The dynamics of piglets are often observed and diseased pigs are isolated and treated in time to prevent cross-infection.

Feed and nutritional feed can be prepared by ourselves, such as corn, wheat bran, rice bran, bean cake, bone meal, salt and so on. The feed for suckling pigs contains 19% crude protein, 15% for weaned piglets, 16% for pregnant sows and 13% 14% for boars. The feeding standard is 200 grams per day at the age of 2 months, and 100 grams of feed is added for each one-month-old day. At the same time, green roughage and clean drinking water should be given to meet their growth needs.

The key points of feeding and management are sunny enclosure, ventilated and dry, divided into single breeding circle and group breeding circle, and keep the enclosure, feed and drinking water hygienic. Strictly control the amount of feeding to prevent diarrhea caused by too much feeding. Piglets were immunized with triple vaccine after weaning. Pay attention to training piglets to eat, defecate and sleep triangulation.