Many farmers in the northeast have heard of the Sanjiang white pig, this pig is hardy and resistant to feeding, is a good excellent breed, but many farmers may not know his origin, Sanjiang white pig in the early years or the northeast of the native pig, in order to adapt to the market, improve its lean meat rate, this pig and the long white pig hybrid, after decades of breeding finally formed now we see the Sanjiang white pig. What are the characteristics of the Sanjiang White Pig?
(1) Physical appearance: it has the physical characteristics of lean pigs. The whole body is covered with white hairs, the hairs are slightly dense, the head is light and straight, the ears are droopy or slightly forward-leaning, the back and waist are straight, the legs and hips are full, the limbs and hooves are strong, and the nipples are 7 pairs, neatly arranged. Adult boars weigh 250 to 300 kg and sows 200 to 250 kg.
(2) Reproductive performance: early sexual maturity, sow initial love period of 137 ~ 160 days old, estrus cycle of 17 ~ 23 days, the number of ovulation is about 15.8, estrus characteristics are more obvious. The suitable initial age of sows is about 8 months old, weighing 90 to 110 kg; the initial age of boars is 8 to 9 months old, weighing 100 to 120 kg. The average number of litters of primary sows is 10.17, and the number of sows produced is more than 12. Piglets weigh 1.21 kg and weigh 11.32 kg, 20-day-old nests weigh 41.56 kg, 35-day-old nests weigh 67.77 kg, the average weight is 7.8 kg, and the breeding rate is 85%.
(3) Growth and body performance: According to measurements, the average daily weight gain of fattening pigs in the 20-90 kg stage is 600 grams, and the amount of material consumed per kilogram is less than 3.5 kg. The results of 90 kg weight slaughter determination of 100 pigs showed that the body length was 95.59 cm, the back thickness was 3.44 cm, the lean meat rate was 57.86%, the leg-to-hip ratio was 29.51%, the subcutaneous fat rate was 26.80%, the plate oil rate was 3.99%, the longest muscle ph6.26 on the back, the system was well hydraulic, the meat quality was good, the pseless meat was free, and the marbles were rich and evenly distributed.
2. Hybridization use of Sanjiang white pig has some excellent characteristics of northeast folk pigs, has strong adaptability to cold climate, good reproductive performance, and foreign introduction of pig breeds and domestically bred lean pig breeds have a good hybrid coordination, suitable as a hybrid mother, hybrid with Duroc pigs, hybrid pigs average daily weight of 663 grams, lean meat rate of 63.81%, excellent meat quality. Add WeChat's latest policy price and the latest pig technology sent to you for the first time, pig learning technology, pig raising to understand the market, pigs to know the policy price in advance, pigs to moderately increase or decrease the stock bar, pigs no longer worry about what else to wait, [zhubingzhiliao (Chinese: pig disease treatment Pinyin)]