Design idea of Wantou Pig Farm and Pig herd structure

First, the design ideas and basis 1, the annual column of 10000 commercial pigs 2, factory feeding: has a certain scale. According to a certain production process Continuous cycle production 3. Production week: pig farm management and pig production are planned and implemented on a weekly basis. 4. Growth cycle of commercial pigs: 23 weeks, body weight up to 95-100kg 5, pregnant period of sows: 114days 6, lactation of sows: 28 days 7, estrus of sows: 21 days 8, postpartum oestrus of sows (after weaning): 10 days 9, reproductive cycle of sows: 22 weeks 10, days of a year: 365,11,365 days 10.5 live babies per litter 12, 88% per year 13, mating: natural mating 14, sow delivery rate 92% 2, site choice 1, away from bazaars, villages and traffic roads The water meets the national health standards and the circuit is unobstructed. 2. The terrain is high and dry, leeward and sunny. 3, non-epidemic area 3, production process design 1, the block is from north to south, and the interval is 4-5 times the height of the room. 2. The upwind of pig house is in the following order: breeding pig workshop, pregnancy workshop, delivery workshop (delivery room), conservation workshop, growth workshop, breeding workshop, pig herd flow chart:

4. The main points of the design of the production workshop (1), the main points of the breeding pig and breeding workshop: 1, the specification: 54m × 7.5m 2, the ground should be woolly, the slope should not be more than 1% 3, the breeding boar pen should be close to the south of the pig house, and there should be playground 4, boar pen: 27-30 covers an area of 8-9m2 (3 × 3m2), one pig in each column. 5. The opposite of the boar pen should be the sow pen to be matched and the sow pen to be observed after mating. Generally, one boar pen corresponds to five sow pens opposite to each other. (2) pregnant sow workshop 1, specification: length 54m × width 7.5m 2, sow number: 360 length × width × height = 2.2 × 0.6 × 1.2m positioning column 3, pregnant sow feeding facilities should be simultaneous feeding system (3), delivery 1, length 54m × width 7.5m 2, should have suckling pig and pig house heating system, cooling system. 3. 168birth beds, length 2.5x0.6) 4, parturient sows 120,5, suckling pigs: 0.1-0.15m2/, 10.5-9.975 per column (4), conservation workshop 1, specification: 54m × 7.5m 2, two nests in one column 3, nursery fence, high bed feeding, 60, each 0.25m-0.3m2/ The area of each column is 5m2 (3 × 1.7m) 4, water supply system with dosing tank and heating and cooling system. (5) growth workshop 1, specification: 54m × 10.5m 2, number of columns: 19.1-18.7head 3 per column, floor area: 0.35-0.4m2/ head, 6.7m2 (length 2.5x4.5 × height 1.2head) per column (6), breeding workshop 1, specification: 54m × width 10.5m 2, number of columns: 18.718.5head 3 per column, floor area: 0.8-1m2/ head Each column 15m2 (length 3.3 × width 4.5 × height 1.2) (7), pig platform (pen) 1, scale 1, scale 2, pig pen 90m2 with capacity of 120, divided into 8 columns. (8) sick pig workshop 1, single column water supply system 2, 10 high bed bars (2.5 m × 2.5 m wide × 0.8 m high) 3, 10 ordinary bars (2.5 m × 2.5 m wide × 1.2 m high) 5, pig herd structure (1) breeding sows 1, basis: 10000 heads per year, 365days per year, pregnancy 114days, lactation 28 days, postpartum mating 10 days, sows give birth to 2.2 litters per year The parting rate is 88%, the litter size is 10.5, and the sow delivery rate is 92%. 2. Calculation: annual litter size of sows = [365 / (11428 × 10)] × 92% 3, number of breeding sows = 10000 / 88% / 2.2 / 10.5 / 491.9 ≈ 528 / 4, weekly breeding of sows = 528 / 22 / 24 (2) breeding boars 1, according to: natural mating, boars are normally used 6 days a week, once a day, the male-female ratio is 1:20. 2. Calculation: breeder boar = 528 / 20 ≈ 27 (3) piglets 1. Basis: weaning for 4 weeks, retention for one week, and 24 sows per week. The litter gave birth to 10.5, and the survival rate was 95%. 2. The number of piglets (head) = 5 × 24 × 10.5 × 95% 1197 (4) conservation pigs 1, growth period 4 weeks 2, according to: growth period 4 weeks, 24 litters, 10.5 litters, survival rate 95-96%. 3. The number of protected pigs (head) = 4 × 24 × 10.5 × 95% "957.6 × 96%" 919 (v) growing pigs 1, growing period 7 weeks (7-8 weeks) 2, according to: 7 weeks, 24 litters, 10.5 litters, and the survival rate during the growing period is 98%. 3. The number of growing pigs (head) = 7 × 24 × 10.5 × 95 × 96% = 1608.7 × 98% 1576.6 (6) fattening pigs 1, growth period: 7 weeks (7-8 weeks) 2, basis: 7 weeks, 24 litters, litter 10.5, fattening survival rate 99%. 3. Number of fattening pigs (head): 7 × 24 × 10.5 × 95% × 96% × 98% "1576.6 × 99%" 1561 (7) algorithm and verification of column quantity 1. Annual column number of each period algorithm = (suckling pig stock column 11977 + conservation pig stock column 919 + growth period stock column 1576.6 + fattening period stock column 1561) × sow annual yield 2.2 litter × sow parturition rate 92% = 10633, sow litter number, week sow litter number Annual litter number of breeding rate algorithm = 24 × litter size of sows per week 10.5 × litter size 88% × number of weeks per year 52 × pig parturition rate 92% 10608.9 3, total number of sows algorithm annual number of piglets = total litter number 528 × litter size 10.5 × 88% × 2.2 × 10733.66, design of 10,000 pig farms and data table of pig herd structure

This article comes from: animal husbandry library