The task of raising pregnant sows: First, ensure the normal development of the fetus in the mother's normal implantation, prevent miscarriage, and increase the rate of mating and delivery; Second, ensure that each litter can produce as much as possible, robust, strong life force, New born piglets. The third is to maintain the upper body condition of sows and reserve nutrients needed for lactation during lactation. In response to sow's different physiological characteristics at different stages of pregnancy and different dietary requirements, we usually divide the sow into four stages for feeding and feeding. 1. Sowed females have been assigned: sows with 1-3 weeks of mating, which is the period of fertilized egg implantation and differentiation of embryonic organs. The nutritional level of the sows for the diet is not very high, but the quality of dietary requirements is very high, sows must strictly control the amount of feeding, feeding can not be excessive, about 1.8-2.5 kg per day, the intake of energy is too high, It will increase the death of the embryo, and it is not appropriate to make frequent adjustments to the sow, affect the placement of fertilized eggs, but also prone to malformation of the fetus. 2. Pre-pregnancy sows: 22 days to 88 days after mating, sow maintenance period. At this time, the sow feeds about 2-2.5kg per day, and it is required to maintain the medium sensation. 3. Late gestation sows: 89-107 days after breeding. This is the fastest period of fetal growth, sow diet should be increased to 2.5-3 kg per day to ensure that the fetus is born healthy. 4. Perinatal sows: 108 after mating - farrowing. At this time, the feeding amount should be decremented every day to reduce the pressure of the gastrointestinal tract to the birth canal to ensure that the sows are in good delivery. Dietary requirements for pregnant sows. It is required to have a balanced high-quality feed for the diet, especially for amino acids, and it is best to use green feed. Pay attention to moldy deterioration of the feed, moldy feed ingredients should be discarded. Requirements and habits of pregnant sows on the environment: pigs prefer a clean and hygienic environment. It is required that the keeper should first grasp the positioning of the sow so that it will defecate urine. The sow will develop good hygienic habits in the future and reduce the occurrence of diseases. Pigs are social animals (boars are to be single-fed). Each pig lies in a floor area of ​​about 1.5? Each shed houses 3-4 heads. Each pig should have enough rest space. When sows are reared in groups, they must be divided in size, separated by strong and weak, and the sickly pigs should be kept separately to avoid eating, fighting and biting each other when feeding. Pigs are afraid of heat, and the appropriate temperature for pregnant sows is 10-28 degrees. Because sows have high body fat and sweat glands are undeveloped, when the outside temperature is close to body temperature, the sows will not endure, and abdominal breathing will occur. At the same time, the fetus in the body will not receive sufficient oxygen, resulting in miscarriage, stillbirths, and increased mummies. Ventilation and ventilation are conducted on a regular basis to reduce the concentration of harmful gases such as ammonia and methane in the house; especially in the winter, ventilation and ventilation are inconsistent with heat preservation, and ventilation and air exchange are often neglected. Daily management of gestating sows: In addition to the daily feeding work, the keeper needs to remove the shed manure every day, keep the shed clean and hygienic, and observe whether the sow has any abnormalities. Give treatment; sows that pull dry dung should feed green feed or key stomach drugs. At the same time, it is necessary to observe whether sows have abortion traces, whether sows that have returned, should be promptly transferred to avoid cross-mother sows, resulting in unnecessary mechanical abortion; whether the sow ear tags fall off, it is necessary to fill in time Fighting; Whether the sow has a traumatic injury, timely isolation and treatment; whether the sows in the perinatal period have signs of giving birth; whether there is water in the drinking fountain; whether there is any damage to the trough, water pipe, lap fence, floor, and floor plate, and timely adjustment. Circle repair; whether the equipment can run normally; in the conditions of temperature and humidity, it is necessary to ventilate and ventilate regularly; store manure in the manure ditch and discharge excrement in time; housed items are neatly arranged; , routine with pig disinfection; boar brushing training and sports; Sterilization: Pregnant sows are routinely sterilized 3 times a week and sterilized every other day. Disinfectants include chlorine preparations, acid preparations, iodine preparations, quaternary ammonium salts, formaldehyde, and permanganate. The old field requires the use of strong disinfectants, and the quaternary ammonium salt disinfectants are mostly used for sow bed cleaning and daily disinfection of new fields. If the concentration of the pigs is too high, the disinfectant must be prepared according to the standard. With the pig to spray disinfection, disinfection should be thorough, leaving no dead ends. Empty room cleansing and disinfecting requires final disinfection; cleansing procedures are: clean-up of hot-alkaline nausea, flushing-fumigation-disinfectant disinfection. Immunization work: Sow sow prevention during pregnancy, we must consider the sow's response to the vaccine. For example, the response of sows to foot-and-mouth disease vaccines (especially subtype I foot-and-mouth disease vaccines) is obvious. After the immunization, the body temperature rises, and no food is eaten. It is recommended that the stimulating vaccine be used to delay the immunization of the late sows, and to be reimbursed after delivery. After the injection of some vaccines, individual pigs even died of shock. Require the rearing staff to immunize after immunization. Observe problems, report veterinary personnel promptly, and assist veterinary personnel in timely rescue and reduce losses. Feeding pregnant sows requires the breeder to be gentle and patient. Don't snored and scare the sow and cultivate the docile habits of the sow so that the piglets are good for the lactation phase. Keeping a pregnant sow is an important part of a pig farm to maintain normal production. As long as we put all the work in place, “it†will bring us great returns!
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