First, what are the requirements for site selection?
1. Adequate water supply, good water quality and drinking water indicators.
2. The terrain is high, sunny, has a certain slope, drainage is convenient, and the use of wasteland does not account for fertile land.
3, traffic, power convenience, from the village and other farms not less than 1 km.
Second, what are the requirements for the layout of the farm?
The production areas and living areas in the pig farms are separated, the clean roads and manures in the production areas are separated, and the production areas are built in the upwind areas of the living areas. The order of the production areas from the top to the bottom is the following: Sows, empty pregnancies, piglets, finishing pig houses, veterinary rooms and sick pig isolation rooms. The fecal site is built on the bottom of the production area. The feed processing plant can be built between the pig house and the pig house. It is best for the conditional person to separate the breeding ground from the finisher.
Third, the introduction of the fine varieties of the main production performance?
Landrace
Place of Origin: Denmark
Variety characteristics: white coat, long and narrow head, straight face, large ears leaning forward, long back, narrow and wide before the body shape,
Streamlined, body-driven, with 16 pairs of ribs, plump thighs.
Breeding performance: 6-7 pairs of nipples, 11 sows born calf, in October before and after the start of breeding.
Fertility performance: In June, the body weight exceeded 90 kg, the daily weight gain was 550-800 g, the feed weight ratio was 3.0-3.5:1, the slaughtering rate was 72%, and the carcass lean rate was 63-65%.
Yoko
Origin: United States
Variety characteristics: full-white hair, ear, straight nose, back waist micro bow, long limbs, head and neck longer, face concave, body drive long.
Reproductive performance: 11 litters per sow, 7 pairs of nipples, and 8.5 to 10 months of breeding.
Fertility performance: In June, the weight was over 90 kg, the daily gain was 680-700 g, the feed ratio was 2.8-3.0:1, the slaughter rate was 71%, and the carcass lean percentage was 62%.
Duroc
Origin: United States
Variety characteristics: The hair is reddish-brown, with medium-sized ears, slightly forward, mouth straight, body length, chest wide and deep, full back muscle.
Reproductive performance: The number of sows littered by the sows was 10, and the nipples were more than 7 pairs, and breeding was started in October.
Fertility performance: In June, the body weight was more than 90 kg, the daily weight gain was 650-750 g, the feed ratio was 2.7-3.0:1, and the slaughter rate was 60-63%.
Deca
Variety characteristics: Paternal boar shoulders, front legs color white, other coat color black, sow coat color white, strong limbs, flat belly lines, full rear drive, ears lean forward, face concave.
Reproductive performance: The number of litters in the litter of sows is 10 and the number of nipples is 6-7.
Fertility performance: In May, the weight was over 90 kg, the daily gain was 600-700 grams, the feed ratio was 2.8:1, the slaughter rate was 77%, and the carcass lean percentage was 65%.
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