Pig breeds bred in China

There are more than 20 breeds of    in China, including Sanjiang White Pig, Hubei White Pig, Yunong White Pig I, II Line, Harbin White Pig, Shanghai White Pig, Yili White Pig, Ganzhou White Pig, Hanzhong White Pig, Beijing Black Pig, Shanxi Black Pig, Northeast Hua Pig, Pan Nong Hua Pig, Beijing Hua Pig and so on.

   (1) Sanjiang White Pig

   1, Origin and Distribution: originated in Dongjiang area of Heilongjiang Province, distributed in Heilongjiang, Wusuli River, Songhua River and other places.

   2, physique appearance: the head is light and the mouth is straight, the ears are drooping or leaning forward slightly, the whole body is white, the waist is straight, the middle body is longer, the abdominal circumference is small, the hindquarters are plump, and the limbs are strong. The hoof is solid and the nipples are about 7 pairs.

   3, production performance: there are more litters, the litter size is 9 / 10 sows and 11 / 12 sows. It is a lean meat variety, which has the characteristics of fast growth, high litter size, high lean meat rate, good meat quality and cold tolerance.

   4, cross utilization: this pig breed has good combining ability with Duroc, Hampshire pig and Landrace pig, especially with Duroc pig.

   (2) Hubei White Pig

   1, Origin and distribution: in central China, Wuchang, Hubei Province, Hankou area.

   2, physique and appearance: Hubei Guangbai pig's whole body is covered with white hair, the head is slightly light and straight, the ears lean forward or droop slightly, the back is straight, the middle body is long, the abdomen is small, the legs and buttocks are plump, the limbs and hooves are strong, and the effective nipples are more than 6 pairs.

   3, production performance: this variety has the characteristics of high lean meat percentage, good meat quality, rapid growth and development, excellent reproductive performance and so on. Six-month-old boars weigh 90 kilograms and weigh 180 days. The litter size of first-born sows is 9. 5%. 5-10. 5, more than 12 sows were born.

   4. Cross utilization: Hubei white pig as female parent had better combining ability with Duroc and Hampshire pigs, especially with Duroc pig. The daily gain of the first generation of fattening pigs of Duroc-Hubei white pig was 0.65 and 0.75 kg at the body weight of 20 ~ 90 kg.

   (3) the breeding of Yunong white pig II of Yunong white pig line I and II is based on line I, crossing and crossing with the introduced Yorkshire, using the method of population subculture breeding, which takes 6 years to complete.

   1, Origin and Distribution: born in Henan Province and the central region, with Zhengzhou as the central producing area, widely distributed along Henan, Hebei, Shandong and Shanxi railways.

   2, physique and appearance: Yunong White Pig II line has a large body, white coat, medium-sized head, upright ears and slightly concave face. The back and waist are straight, the abdomen is slightly large but not drooping, the legs and buttocks are plump, the limbs are strong, and the physique is strong. More than 6 pairs of nipples.

   3. Production performance: the first litter size of sows is 10.5 and live litter size is 9.7; the litter size of multiparous sows is 11.5 and live litter size is 10.4; the average weaning weight is 19.4kg in 60 days. During the fattening period of the fourth generation, the daily gain was 763.90 grams, the ratio of feed to meat was 2.72, the thickness of live backfat was 8. 47cm, and the percentage of carcass lean was 66. 5%. 1%, leg-hip ratio 33.45%, eye muscle area 44.03 square centimeters.

   4. Cross utilization: Yunong white pig II line as female parent crossed with large York and Duroc boars, the daily increase of commercial pigs during fattening period was 815.5. 48 grams, the ratio of feed to meat is 2.6814, and the percentage of lean meat is 67.71%.

   (4) Harbin White Pig

   1, Origin and distribution: produced in the south and middle of Heilongjiang Province, with Harbin and its surrounding counties as the central producing areas.

   2, physique appearance: the body is large, the whole body is white, the head is medium size, the ears are upright, the face is slightly concave. The back and waist are straight, the abdomen is slightly large but not drooping, the legs and buttocks are plump, the limbs are strong, and the physique is strong. More than 7 pairs of nipples.

   3, production performance: average daily gain is 587g, compound feed consumption is 3. 7kg per kg weight gain and green feed is 0. 6kg The slaughtering rate is 74%, fat thickness is 5 cm, eye muscle accumulation is 30.8 square cm, leg-to-hip ratio is 26.5% and 90 kg carcass lean rate is more than 45%.

   4. Cross utilization: Landrace boar crossbred with Harbin white sow, litter size, weaning litter weight and daily gain during fattening period increased by 1.2kg, 23.3kg and 38g, respectively. After cross breeding, Harbin white pigs have excellent characteristics, such as fast fattening speed, large birth weight, weaning weight and so on.