How to make design a 500 Sows Pig farm Stall?

The lactation period is generally divided into 21 days and 28 days. The process layout is as follows: Based on production process requirements, a pig farm production area requires the following functional pig housing: Gestation period: 114 days (approximately 16 weeks)
Lactation period: 21-28 days (3-4 weeks)
Weaning-estrus cycle: approximately 3-10 days (approximately 1 week)
21 weeks (weaning at 28 days)
Sow cycle
20 weeks (weaning at 21 days)
Reserve barn, breeding barn, gestation barn, farrowing barn, nursery barn,
Fattening barn (finishing barn)
In addition, boar housing is required for artificial insemination, isolation of introduced pigs is required
Introduction isolation barn, and isolation of sick pigs requires a sick pig isolation barn;
Testing barns are required for the rearing stage of the breeding farm;

2. Pen Calculation
Reserve barn
Annual culling rate: 35%
Introduction weight: 65 kg
Reserve feeding period: approximately 12-13 weeks
The introduction cycle is one month.
Replacement gilts are generally kept in small groups (3-5).
The number of pens is calculated as follows:
500 x 35%/12 = 14.58 (16 gilts/month)
16 x 13/4/5 = 10.4 (12 gilts/building)
Introduction quarantine pens
The quarantine period is at least one month, with a maximum of 20 gilts per pen.
To quarantine gilts of 16, two large pens and two small pens can be designed.
Note: Gestation period: 114 days (approximately 16 weeks)
Lactation period: 21-28 days (3-4 weeks)
Weaning-estrus cycle: approximately 3-10 days (approximately 1 week)
21 weeks (weaning at 28 days)
One sow cycle
20 weeks (weaning at 21 days)
Replacement gilts are bred at approximately 210-230 days of age.
3. Breeding pens
Pregnancy rate: 85%; Confirm the gestation period is 4-5 weeks.
Reserve 2 weeks of empty/replacement gilts and keep them in small groups.
Rearing sows are kept in stalls.
Pen number calculation is as follows:
Pen: 24/85% x 5 = 142 stalls
Group pen: 24/5 + 3 = 8 stalls
4. Gestation pens
Abortion rate: 5%
Raising cycle: 12 weeks
Pen number calculation is as follows:
Pen: 24/95% x 12 = 303 stalls
Group pen: 24/5 + 3 = 8 stalls
Annual farrowing rate: 2.35 parities/year/sow
Farrowings per week: 500 x 2.35/52 = 22.6 (assuming 24 pigs)
Weaned piglets: 24 x 10 = 240 pigs (average 10 pigs per litter)
The rearing phase of sows is divided into two scenarios:
Grandparent Sow Farm: Sows (60% selection rate)

Broodstock Farm (Great-Grandparent): Sows 60%

Boars 20%

3. Farrowing Barn

28-day weaning: 6 units

21-day weaning: 5 units

24 farrowing beds per unit

4. Nursery Barn

7-week nursery, weekly disinfection, 8 units;

20 pigs per pen, 12 pens per unit

5. Finishing Barn

Pigs weighing 120 kg or more are marketed and require approximately 15 weeks of rearing after the nursery period. Designed for 16 units, 20 pigs per pen, 12 pens per unit. 6. Finishing/Testing Barns

Unless otherwise specified, the pen dimensions are the same as those for the finishing barns.

7. Sick Pig Isolation Barns

Same as those for the finishing barns, with the addition of a pathology and anatomy room.

8. Boar Barns

Calculate the male to female ratio at a ratio of 1:50-100.

One pig per pen, 7-10 square meters per pig.

Design of semen collection pens.

Design of a semen analysis room (laboratory).