1. According to the age of the pigs, the immunization plan, feed-restriction plan and deworming plan should be implemented in batches and implemented. The gilts were paired with the precursor parasites in vivo and once for injection of JE, parvovirus, swine fever, and foot-and-mouth disease vaccines.
2, feeding twice a day. Restricted feeding and feeding programs: sows are free to feed before 6 months of age, and are appropriately limited by 7 months of age, and they are fed for the first month or half of the month before mating. The feeding amount is controlled to be less than 2° when the feed restriction is restricted, more than 2.5° when the feeding is excellent, or it is free to feed.
3, make a backup pig estrus record, and transfer the record to breeder staff. The sow estrus record begins at 6 months of age. Observe the initial estrus time carefully so that the second and third estruss can be bred in time and recorded.
4. Reserve boars are reared on a single bar, and when the pens are not enough, the barn can be 2-3 heads, with a single bar in the previous month. A small group of gilts reared, 5-8 heads.
5, the introduction of the first week of the reserve pig, the feed is appropriate to add some anti-stress drugs such as vitamin C, Vc, multi-dimensional, mineral additives. At the same time, some antibiotics such as Hunuojing, Huchangshu, Taichaojing, doxycycline, lignomycin, oxytetracycline, etc. are properly added to the feed.
6. The outbreak period for outlying pigs is about six weeks (40 days), that is, the introduction of spare pigs is at least 40 days in the isolation house. If you can turn around, it is best to keep one month before mating, that is, 7 months of sow and 8 months of boar. Before entering the production line, it is best to have a polyculture with the old sow or the old boar for more than two weeks.
7. Reserve pigs should be fed with 2.0-2.5 kg per head per day, and increase or decrease the feeding amount according to different body conditions and breeding schedules. In the first estrus period, the gilts should be arranged to feed more than one-third of the prescribed amount, and the amount of material after the gilts is reduced to 1.8-2.2Kg.
8. The gilts entering the breeding area are placed in the stadium for 1-2 hours a day and checked with boars.
9. The following methods can stimulate the estrus of the sow: adjust the circle; contact with different boars; try to place sows close to the estrus; perform appropriate exercise; limit feeding and superior feeding;
10. Sisters that are not in heat for more than 60 days after entering the breeding area should be eliminated.
11. For gilts suffering from asthma, gastroenteritis, limb and foot disease, etc., they should be kept separately in one column; this column should be at the end of the pig house. Observing and treating the two courses of treatment have not seen any improvement and should be eliminated in time.
12. The gilts were transferred to breeding houses at 7 months of age. The gilt's initial mating age must reach 7.5 months of age, and the body must reach 110Kg or more. The boar's initial mating age must reach 8.5 months of age and the body weight should reach 130Kg or more.
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