Feeding and Management Techniques for Breeding Pregnancy Pigs

First, feeding and management of empty sows

Empty is the sow after weaning and again in estrus. 2-3 days before weaning should be appropriately reduced to prevent the occurrence of mastitis. After weaning, groups can enter the gymnasium for 6-8 hours and no water is supplied. After entering the empty arms, it is advisable that the size of the house is 3-4, usually 5-7 days. During the period from the end of weaning to the end of breeding, we will provide excellent feeding. It is recommended to feed 3-4 kg of special weaning material.

Empty sow mating: Weaned pigs with a 3 day estrus interval can take the first 24 hours after static standing reflexes, 12 hours at regular intervals, and the third time after 12 hours; pigs weaned at intervals of 5-7 days, The first match occurs 12 hours after static reflection, 12 hours at intervals, and the third time after 12 hours. According to the characteristics of excellent breeds, after the static reflection of the reserve pigs, it is recommended to immediately breed, with a 12-hour interval. 12th hour of the third breeding; after the end of breeding, change feed pre-pregnancy material.

Second, pregnant sows feeding and management

Early pregnancy (within 1 month after mating): This stage requires little extra nutrition. In this case, too much feed intake of the sow will increase the chance of embryonic death. Therefore, this stage should be restricted to feeding and feeding before pregnancy. Material 1.8-2.2 kg.

Mid-pregnancy (31-85 days): In this stage, the amount of feed is limited according to the sow's body condition, feed 1.8-2.5 kg in the pre-pregnancy period to control the sow's moisture content, and the level of crude fiber is properly increased in the diet. , Increase satiety, prevent constipation, must prevent excessive intake of diet, resulting in sows too fat.

Late pregnancy (86-114 days): This period is the period of rapid fetal development, and 70%-80% of piglets' initial weight is rapidly growing at this stage. Therefore, pregnant sows should be strengthened before the four weeks before birth to promote the rapid growth of the fetus, and make a reserve for lactation. Generally at this stage, feed 3-5 kg ​​of feeding material, 3-4 kg of gilt, and 4-5 kg ​​of sow, and increase or decrease the amount of feed according to how fast the sow's abdominal circumference expands.

After mating, the group feeds were changed to individual rearing as soon as possible. In the case of proper temperature, keep the house as quiet as possible and allow the fertilized eggs to implant more in the womb.

After 18-23 days or 36-45 days after mating, do a good job in pregnancy diagnosis, timely detection of the situation of non-pregnant sows. Keep the pens dry and hygienic, and do a good job of protecting the heat in summer and winter, keeping the temperature at about 20°C. It is forbidden to allow high temperature, humidity, icing, slippage, and prevention of miscarriage.

According to the immunization schedule, various vaccination vaccination campaigns were carried out. It was found that the diseased pigs were treated in time and disinfected in a whole group It is forbidden to use drugs that cause abortion easily, such as dexamethasone and estrogen, to prevent abortion caused by high fever.

The sow should pay attention to keeping the environment quiet during the 7-10 days before delivery, and at the same time, clean the breasts, legs, and the vulva, and keep the pens and pigs clean and hygienic.

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