Winter Pig Management Technology
First, pay attention to giving birth. The sow’s gestation period is 114 days (3 months, 3 weeks and 3 days). Based on this, the expected date of the sow is calculated and ready for delivery. When the pig was born, it was full of amniotic fluid, and there was a lot of mucus in the mouth and nose. Use a clean, soft towel to remove mucous from the mucous membranes at the time of delivery, so that the air is clear, and the body of the amniotic fluid is wiped off to prevent freezing. The first-born sows are over-fertilized and the piglets are too big to cause obstructed labor. The midwifery should be followed by the pig's forelimbs and heads to emerge from the birth canal and pull the sows out of the birth canal; the primordial sows are caused by reproductive tract malformations. Dystocia, generally do not use Caesarean section, the specific conditions should be proven to guide the pigs to produce the output; miscarriage of dystocia, the first return of the pigs to the uterus right in its place (two forelegs in the front Straightening and keeping your head close to your forelimb can produce. Second, pay attention to feeding colostrum. Sows 1 to 3 days after delivery are colostrums. Colostrum is rich in nutrients and immune factors. After feeding the colostrum, the pig can enhance its physique, gain passive immunity and promote the discharge of meconium. Healthy pigs can instinctively suck breast milk after they are born. The weak body may not find the nipple. At this time, it is necessary to artificially promote it to the sow's nipple, let it eat colostrum, and improve its ability to resist cold and disease. Third, pay attention to fixed nipples, cut the dog teeth. Pigs have a habit of fixing nipples. Artificially fix the nipples and place the weak ones on the second and third nipples to improve the uniformity of the entire litter. In order to prevent the pigs from hurting each other by biting, it is possible to cut 1/2 of the canine's canine teeth with a needle-nose pliers. Fourth, pay attention to the insulation of the housing, anti-freeze anti-pressure. The winter production circle has poor heat insulation and thief wind infestation, and it is easy to freeze piglets. In low-temperature environment, the pigs are stacked on top of each other and the lower ones are crushed. Some of the pigs drill into the grass and are crushed by the sow. Insulation measures should be prepared before the sows give birth. The production circle should be equipped with a thermal insulation bar, with electric heating plate, infrared lamp, 100-200 watts of ordinary light bulbs, fire wall dry bedding, etc. plus pad insulation. Fifth, pay attention to eating and feeding. When the pigs are 7 days old, they can install feeding troughs for feeding and supplementing them to promote the development of the digestive system. The starter can use high-quality bait, such as skimmed milk powder, lactose, whey powder, puffed soybeans and so on. For 3-4 weeks old pigs, acidifiers such as citric acid and propionic acid may be added to the supplemented feed. Adding enzyme preparations and yeast can enhance the digestive ability of the pigs. However, the amount of high-protein raw materials should be limited in feeds to prevent diarrhea. Sixth, pay attention to the prevention of epidemic prevention of minerals. When pigs were born, 500 mg of iron was stored in the body, and anaemia occurred until about 7 days of age. One ml of iron injection (containing 150 mg/ml of Fe) can be injected at 3 days of age, and supplemented once at 7 days of age if necessary. Selenium-deficient areas should be intramuscularly injected with 0.5 ml of sodium selenite containing 1% of selenium in the pigs at 3-7 days of age. Adding 0.02%-0.05% copper to the piglet feed can increase the conversion rate of the feed. Adding zinc can prevent diarrhea. Sub-swine squat severely hindered its growth rate. The inactivated bacterin of the genetically engineered bivalent K88 and K99 was injected into the sows of the sows and the application of the enrofloxacin to the sow. The combination of the two had a good preventive effect on the porcine jaundice and white peony.
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