Physical characteristics
Purebred fragrant pigs are small in size, covered with black hair, denser, finer luster, darker skin, long head flattened, wrinkles in the neck, small ears, hard ear roots, flattened ears on both sides, around the eyes Obvious hairless area, pink or black kiss end, back waist slightly concave, large belly, round, sagging, limbs short, tail slender like rat tail, nipples mostly 5 pairs.
2. Breeding
The boar had a crawling behavior at 2 months of age and the sow was estrus at 3 months of age. The estrus cycle is 18 days to 21 days, lasting about 4 days. 4 months of age, about 11.4 days of pregnancy. The average yield of the first-born sows was 5.6, and that of the average sows was 8.3. In breeding, the management of breeding boars should be strengthened, and nutrition should be increased to allow them to exercise more. In order to prevent boar masturbation, boars should be built up in the upwind direction of the sow, at a certain distance. Boars are bred in a single circle. The appropriate mating time for sows is about 30 hours after the start of oestrus. After 2 months of pregnancy, the sow should be raised in a single circle to prevent abortion.
3. Intensified nursing pig management
Strengthen insulation, especially in winter, to prevent thief winds and pad hay.
Early eating, the pig can be fed 5 days to 7 days after birth (10 grams to 20 grams of activated carbon per kilogram of feed to prevent diarrhea).
Timely weaning, the pig weight 0.5 kg birth weight, 2 months of weaning weight 3 kilograms ~ 5 kilograms.
The “preemptive immunization†was adopted for the pigs. Before the colostrum was eaten, colostral vaccine was injected before the colostrum was eaten. Only half an hour after the injection, the pigs were allowed to eat colostrum.
Observe the dynamics of the piglets frequently and find that the sick pigs are treated in time to prevent cross-infection.
4. Feed and Nutrition
Feed can be prepared by corn, drum, rice bran, bean cake, bone meal, salt, etc. The feed for piglets contains 19% of crude protein, 15% of weaned pigs, 16% of pregnant sows, and 13% to 14% of boars. Feeding standards were 200 grams per day for 2 months of age, and 100 grams of feed was added for every additional month of age.
5. Feeding management points
The sheds are sunny, ventilated and dry, and are divided into two types, one is for keeping the ring and the other is for keeping the ring, and the sanitation, feed, and drinking water are maintained.
Strictly control the amount of feed to prevent diarrhea due to too much feed.
The piglets were immunized after weaning and were given a triple vaccine.
Pay attention to the adjustment of eating, defecation, and sleeping triangle positioning.
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