Breeding management of sows

First, the mating preparation period (purpose: to improve the sow body condition, so that the normal estrus of the sows, the discharge of quality assurance of sperm, so that timely breeding, improve the emotional period of pregnancy rate and the number of embryos conceived.)
(1) 800-1000 units of PMSG should be injected during the second-time sow's sow, and the weaned sow should return the breeding unit or the pregnant unit according to the original unit.
(2) Each sow supplies 2.5 kilograms of mixture and 3.0 kilograms in winter. The mixture is fed with water and spices and fed three times a day to ensure sufficient drinking water. Every summer and autumn give green feed 2 to 3 kg.
(3) According to the sow's body condition (lean and thin), 4 to 6 sows are bred per lap. Specially marked sows with poor body condition should be marked, and special care should be taken during feeding. 3.0 kg; over-fat sows can be reduced to 2.25 kg.
Second, breeding (4) with pregnant unit breeders after the completion of sow mating, to do a good job in breeding time records, in order to meet the grading staff to observe the occurrence of heat (prepare the record in the sow pregnancy diagnosis record form).
Third, pre-pregnancy (with pregnancy - 80 days of pregnancy)
(Target: Prevent miscarriage of sows, ensure adequate nutrition for sows, and promote the development of the fetus.)
(5) Continue to implement the provisions of paragraph (2)(3). Thin sows have special care. Do not use moldy, frozen feed.
(6) 16-23 days after mating, we must carefully observe the sow, to prevent the sow from fighting or outside bad stimulus, initially determine whether it is returning to the situation, if found to promptly notify the mating personnel.
(7) The pregnant sow is hung out of the pre-production card 70 days after mating.
IV. Late pregnancy (80 days of gestation - 107 days)
(Target: To avoid the production of weak litter, so that the output of piglets are neat and consistent).
(8) The feed supply for each sow was increased to 2.75 kg and the winter amount was 3.25 kg. The feeding method was still the same.
(9) The breeder must know the expected date of the sow, and if there are any errors, he must check it in time; he must also feed enough of the feed as required, and give special care to the sow whose body condition is still poor.
(10) Transferring into the delivery room 1 week before delivery, carrying the brand of production, must not be in a hurry, and must not be scared; and disinfect the pens and pigs.

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