Talking about raising black pigs

Richard Black Pig is an excellent local breed in China, which is known as South Taihu Lake and North Richard. Richard Black Pig is a local breed with certain characteristics, which was bred by people in Jiaozhou, Qingdao for a long time.

Richard Black Pig, named after its origin and coat color, is mainly distributed in Richard, Zhang Ying, Zhangjiatun, Jiaonan, Zhucheng and Gaomi in the southwest of Jiaozhou, Shandong Province.

L, personality characteristics.

Richard Black Pig has a long body, a shallow chest, a chest circumference of L5cm smaller than the body length, an average of 7 pairs of nipples, and a slightly less plump hindquarters.

The whole body's hair and skin are black, and very few have brown hair. Handsome head and face, round head, short face, obvious diamond-shaped wrinkles on forehead, ears leaning forward, thick mouth tube, straight back, strong limbs and hooves, and large abdomen without sagging.

Richard black pig has wide adaptability, rough feeding tolerance, good reproductive performance, high slaughter rate, high lean meat rate and fresh meat quality.

The outstanding feature is that there are 1-2 more thoracolumbar vertebrae than ordinary pigs, and the daily weight gain during fattening period is 735 grams, and the feed-meat ratio is 3. O4: Lean meat rate is 55. 17%.

Under the standard feeding conditions, the boar's 6-month-old weight 10 1. 2l kg, and its daily gain was 7l7g.

The average weight of sows reached 102.86 kg, and the daily gain was 7. 14 g.

2. Production performance.

The average litter size of primiparous sows was 8.85, with an average birth weight of 1.28 kg and weaning weight of 18 kg. 60 days old and weighing 7 kg.

The average litter size of multiparous sows is l2, the newborn piglets weigh l.l9 kg, and the 60-day-old weaned piglets weigh L50 kg.

The average number of nipples of sows is l3.68, which has good lactation performance and strong breast retention.

Under normal feeding conditions, the fattening pigs weigh 90 kg for six months, with an average daily gain of about 60 grams, and the feed-to-weight ratio is 3.3-3.5: 1 ..

Richard black pig has a large eye muscle area. Fattening 140 days, the slaughter rate is 7l%, the lean meat rate is over 5O%, the carcass thickness is less than 2.8 cm, and the carcass length is 82 cm.

3. Development and utilization.

After several generations of breeding, Richard black pig has the foundation of lean pig, especially the average number of thoracolumbar vertebrae is 2l.7, which is relatively long and rare among domestic pig breeds, and has important utilization value and development prospects.

On the basis of Richard black pig, a new strain of pig bred by introducing Duroc's pedigree not only has the excellent performance, strong disease resistance and good meat quality of Richard black pig, but also has the advantages of rapid growth and development, high lean meat rate and less materials used by Duroc pig.

If the new pig strain is used as female parent and Landrace, Yorkshire, Hampton and other pigs are used as male parents, the daily gain of the first generation of fattening pigs can reach more than 8 oog, and the feed-to-weight ratio is below 3: L.