(1) Su Tai pig has more litter
It can be used as the female parent of three lean meat pig.
(2) Sutai pig body hair black, medium ear earlobe move the bottom of a clear head, wrinkles, mouth long and straight, stout limbs, waist straight, abdomen small, plump hindquarters, has obvious characteristics of lean type pig.
(3) Sutai pig sows September age weight 116.31 kg, 126.56 kg of body weight at the age of boars in October; fattening weight 25-90 kg, weight 623.12 grams, the feed utilization rate of 3.18, up to 90 kg weight 178.90 days.
(4) Su Tai pig body weighs 90 kilograms, slaughter rate is 72.88%, average back fat thickness is 2.33 centimeters, eye muscle area is 29.03 square centimeter, carcass lean meat rate is 55.98%.
(5) Sutai pig sows average more than 7 pairs of nipples, fit the age of 6~7 months, the boar is 7~8 months; the average litter size of 11.68 primiparous sows, weaned at 35 days of incubation 10.06 piglets, 60 day old piglet weight 184.31 kg, the average litter size of sows 14.45, 35 day old weaned bred 11.80 piglets, 60 day old piglet weight 216.25 kg.
(6) Sutai pigs and Landrace boar hybrid, the offspring at the age of 164.43 days up to 90 kg body weight, carcass lean meat rate can reach more than 60%, the average litter meat yield reached 487.08%.
(7) Sutai pigs can be raised in most areas of our country, the appropriate scale of pig farms, breeding specialized households, farmers.
China. Most areas can be raised
1. Growth and development
The average daily gain was 570 + 25.6 grams during weaning to 50 kg, and the daily gain was 710 + 28.8 grams in 50~90 kg phase.
2. Reproductive performance
The average litter size of sows was 14.5 + 1.06, 13.78 + 0.98 number born alive, 35 days weaning weight was 7.85 + 0.56 kg.
3. Fattening performance
The daily gain of 90 kg was 178 + 3.45 days, and the feed conversion rate was 3.11 in fattening period.
4, Carcass Quality
The carcass lean meat rate was 56.10% + 1.32, intramuscular fat as high as 3%, bright red color, delicious, tender and juicy, FeiShou moderate, suitable for Chinese cooking habits and tastes.
By using hybrid
It is a good model that the crossbred pigs are female parent and crossbred with large white boars or Landrace boars. Sutai hybrid pig carcass lean meat rate from 59 to 60%, up to 90 kg of body weight at 160 days to 165 days, 25--90 kg weight gain stage 700 ~ 750 grams, feed conversion rate of 1:2.98.
Feeding management characteristics
1. Breeding of Su Tai pig
Boars can start breeding at 7~8 months of age and weighing more than 80~90 kg, and sows are suitable for mating at 6~7 months old and weighing more than 70 kilograms. The average estrous cycle of sows was 20.3 days, and the estrous duration was 3.95 days. For the characteristics of oestrus of sow stood around, vulva swelling or slightly swollen, moist, and thin mucus outflow, some sows also reduced appetite, climbing across other pigs or jump behavior or tweet on the back when the signs of estrus, motionless, vulva swelling subsided when is the best time for mating with. Have natural mating and artificial insemination.
2. Breeding of Su Tai pig
Sutai pig does not have high requirements on the resistance of crude feed, good performance, can make full use of bran, dregs, vines and other agricultural and sideline products. The crude fiber feed in sows can be as high as about 20%, which is a kind of roughage tolerant pig breed.