Technical Control | How to crack the strange circle frequent in pig field disease? (2) – Pig School Hall – China Animal Husbandry Website – A useful animal husbandry website
Pig professional manager, WeChat ID: YZZYJLR2016
For how to reduce the occurrence of pig farm disease, there have been several production models, such as the early weaned milk, and the pig part Clean, multi-point production, etc., and these production models have certain effects on improving the health level of weaning pigs and sows in the production level of sows, but the effect is not the most ideal. In the actual production, people often divide the pig groups according to the growth conditions, which increases the contact opportunities of the pigs, and the infection of the pig will spread the disease to other susceptible pigs, causing a wide range of diseases, and The speed is very fast (SIR theory). In theory, any way to reduce contact with pigs should be able to slow down the speed of dissemination, such as reducing the number of turns. Therefore, in actual production, we must consider how to reduce the probability of disease spread by reducing the number of pigs. Three-week batch production is a quite effective measures currently solving the health problems of pigs.
Third, the key to implement three-week batch production mode
1, the childbirth cycle should be arranged compact: each batch of childbirth is 7 days For those sows that cannot be given during childbirth, they should be injected 24 hours before childbirth, which guarantees that their weaning pigs reach standard weaning when weaning;
2, estrus and breeding should be concentrated: weaning to the breeding interval for 10 days, when the mother pig is the first bourish pig, the basic sow is poor, and when we wear in the middle of the summer, it is easy to show the hair sow. Postponed phenomenon, thus chaos a production plan. The way to solve this problem is that the sow timeliness of these situations will appear in a large group of 2 days than the large group, and 1 pregnancy is injected.
3, estrus identification level and pregnancy diagnostic levels are high: to accurately grasp the estrus identification time, and estrus sow, and estrus, so that synchronous childbirth is guaranteed. Early pregnancy diagnosis (18 ~ 20 days of pregnancy) is very important for improving production efficiency for reducing non-production days.
4, each batch of pigs should maintain stability: the most important one of batch management is to ensure that each batch of pigs are full of load production, only this can guarantee the realization of the annual production goals.. Several critical data should be grasped simultaneously, mainly including 1 quantity of each batch of basic sows and rear sows; 2 The size of the pig population; 3 per batch number and childbirth; any of these data Changes will result in abnormal operation of batch production mode, which affects the completion of the final production task.
5, the reserve pigs management level is high: there should be enough reserve pigs in the audience, and to pay attention to the first estrus date of the reserve sow to facilitate accurate prediction of the third and four estrus times. And in advance, the estrus time is in a group of weaning time to weaned the milk, so that each batch of weaning estrus varices are maintained. In addition, it is important to be aimed at the age of the existence of the inner rear mother pigs that cannot be consistent with the batch production plan, and can use the drug to be estrus for 21 days before entering the group. 15mg per day, 15 days of feeding, and 6 days after the end of the fed, more than 95%. In addition, considering that there is a process of isolation, immunity and adaptation to this environment in the admission, it should be introduced in advance, and it is recommended to introduce 90 ~ 100kg.
6, the sow should not be easily eliminated: in general, the sow does not have a disease or trauma, generally do not easily eliminate to ensure the completion of each batch task. If the breeding pregnancy house is empty, it should be sacrificed to be eliminated until the first pregnancy can also ensure that the final delivery can be eliminated after full load production. If the conditions are allowed, the room is best for more than one production, and after breastfeeding pigs, they will be in the pig.
7. To monitor the effects of breeding season and breeding changes on breeding premium, if the birth rate declines, it should increase the number of breeding heads, thereby ensuring each batch of childbirth.
The actual case of the four-week batch production model
According to a 182 basic mother pig, the production line of 4600 commodity pigs produced as an example, introduced the three-week batch model. Design method.
Pig field column structure positioning column 70 positioning columns, 13 big bars, up to 6, 70 + 78 boar houses 13 big bars, of which four Pig, other columns can be released in 45 categories of dairy, two rows of four rows of 12 beds, 52 small bars, 12 pigs, 624 fattening two education per columnFertilizer, 26 columns per piece, 8-10 pigs, 520 heads
1, the selection of basic design parameters, see Table 1. Infographic
Table 1. Basic design parameters Selection
Basic parameter item parameter value pregnancy (days) 115 sow average weaning day age (day) 24 per time, non-production days (days) 23, bodes, live, number (head / nest) 12 Pregnant sow, go to bed (days) 3 bed air bar disinfection (days) 4 sow, breeding, delivery rate (%) 90 pig year renewal rate (%) 45 breastfeeding, pigs, creature (%) 95 conservation period %) 98 fattening period survival (%) 99 conservation transfer day age (days) 70 care-free ship disinfection (days) 7 fat pigs for sale age (day) 182 fattening season hollow bar disinfection (days) 7 Reserve backup Shoto selection of age (days) 160 rear colon pigs, presence age (day) 230
2, specific design plan calculation
1 Control of the number of pigs in each stage:
Annual birth season: 365 / (115 + 24 + 23) = 2.25;
A lot of batch: 365 ÷ 21 = 17.4 batches;
Each batch Number: 182×2.25 / 17.4 = 24 (窝)
Number of broken piggy pigs: 24x12x95% = 274 (head)
Care Bed at each batch: 274×98% = 269 (head
Each batch of filling outlets: 269×99% = 266 (head)
Each batch number: 24 ÷ 90% = 27 (head)
Each batch of replenors Number of heads: (182×45%) ÷ 17.4 = 5 (head)
2 Pig Savings Requirements:
Number of beds required: 24×2 = 48 (Zhang) (production room required 2 The group is used, 42 days of wheels 1 time)
Number of conservation beds: 48 (corresponding to the recycle and the bed)
fattening house: (182-70 + 7) ÷ 21×266 = 1507 (head)
Back to the individual stock: 27X10% X2 = 6 (head) (up to 2 return calculations)
Variety of pig house sow all year round:182-24 + 6 = 164 (head)
Reserve sow all year round: (230-160) ÷ 21x5x1.15 = 20 (head)
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V. How to transition from week production mode to three-week batch production model?
From Zhou production to three weeks batch production transition, need to be carefully planned, the overall transition plan is shown in Figure 2, and also pay attention to the following Problem:
1. Because the pregnancy column is limited in the field, the reserve pig can only introduce 10 weeks in advance, then isolate, immunize, so that it adapts to this environment as soon as possible.
3, the three batches of pigs (a total of three weeks of breastfeeding pigs) are weaned (the average daily age is 21, 28, 35, respectively). 4, if the in-field equipment is not suitable for three weeks of batch production, it should be transformed, or some additional inputs. If the pig house is insufficient, in order to make full use of existing resources, internal transformation can be performed, and the big bar is changed to a half limited space or a positioning bar. Such a sow can be fully 182 or even more. In addition, after the production of the production of the production of three weeks, it may have a small age of conservation, especially in the cold season, which will seriously affect the growth rate. In view of this, it can be appropriately increased in the fattening house. Guarantee the normal growth rate during the fattening phase.
Zhou Ji Children’s Day Dairy Group Formulation Group 1 to 10 Preparation Transition to three weeks of batch production Zhou production delivery
13 weeks of production of childbirth group A group of breeding 14 weeks of production boring B composition milk day age (21 ~ 35 days age)
15 weeks of production delivery
16 weeks of production childbirth group B Group 17 week production C Compared with milk age (21 ~ 35 days)
18 weeks of production delivery
19thProduction of branch in group C Groups for 20 weeks of childbirth D Assembly milk day (21 ~ 35 days)
21 weeks of production delivery
22 weeks production childbirth D group breeding 23 weeks production childbirth e composition milk day age (21 ~ 35 days old)
25 weeks of production delivery
25 weeks production childbirth E group breeding 26 weeks of production childbirth F composition break milk day age (21 ~ 35 days age)
27 weeks production delivery
F group breeding 29A batch g Component Milk Japanese age (21 ~ 35 days)
G group breeding 32B group delivery
Group 28 days of dry milk
A group of breeds
Figure 2. Weekly production to three-week batch production transition plan
The last need to be specifically pointed out, not all the pig farms are suitable for three-week batch production mode, It is mainly because the three-week batch production model is centralized production, and the large-scale pig farms in the basic sow have reached more than 200,000, and the equipment facilities such as field, disinfection, and the requirements of the staff are implemented when the batch production is applied. More than need, the production management standards are also high, so the funds for all aspects have been high, and it is necessary to consider carefully before using batch production. For the pig farm in the basic mother pig less than 1,500 sows, it is difficult to achieve efficient full-scale full-scale management, which is difficult to produce a larger pig with high-quality and agricultural consistency. group. However, if these pigs are implemented for three-week batch production, the above problems can be solved, if it is a pig farm under 500 sows, as long as the pregnancy bar conditions are allowed, it may take the five-week batch production mode, and the whole pig is only four. Group labillas, also maintaining 28-day breast milk, catenary and posture time, can effectively block disease spread, thoroughly realize all-in-law, thus ensuring high efficiency of the production of pig farms.
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