Relationship between survival rate and benefit of piglets main points of feeding suckling piglets in early spring

The temperature required for newborn piglets was 35 ℃ ~ 29 ℃ at 0-3 days old, 29 ℃ ~ 25 ℃ at 4 days old, 25 ℃ ~ 22 ℃ at 14 days old, and 22 ℃ ~ 20 ℃ at 15 days old. The weather in early spring is cold, windy and capricious, which is not conducive to the growth of piglets, so heat preservation is very important.

Piglets

If possible, put an energy-saving electric hot plate in the house and adjust the temperature of the electric hot plate according to the temperature requirements of piglets, and the heat preservation effect is good. It can also be installed in the piglet incubator or feeding column with far-infrared heat preservation lamp, usually with a light bulb of 100 to 175 watts. Hang the light bulb on the lying place of the piglets and control the temperature by adjusting the height from the ground. If you do not have the conditions, you can also use a woven bag to wrap the benzene board, put it on the floor of the incubator, and then pad the thick grass, which is generally thicker than 10cm. Piglets should be trained to develop the habit of regular and fixed-point excretion to keep the bedding grass dry.

Anti-sow trampling piglets: after the birth of piglets, sows trample and crush piglets often occur, accounting for 10%-30% of the total deaths, or even as high as 50%, mostly within one week after birth. It is mainly due to weak or obese sows, slow response, weak body and narrow birth circle of piglets, especially 1-5-day-old piglets, which are easy to be trampled to death. The specific measures are as follows: first, take good care of newborn piglets, apply protective boxes to separate sows within one week after birth, and let sows breast-feed once every 2-3 hours; second, set up protective fences, where the sow house is against the wall, with logs or iron pipes at the 25cm away from the wall and on the ground, so as to prevent the piglets from being squeezed to death when the sows lie along the wall. Third, a guard room is set up in the sow house to build an enlarged room with wooden boards or bricks, which is closed around and leaves a small door (for piglets to enter and leave), and regularly releases piglets for breast feeding, which can greatly reduce the chance of piglets being trampled and pressed.

Timely iron supplement, selenium supplement and feed supplement: newborn piglets generally suffer from iron deficiency anemia. The iron storage in piglets can only be maintained for 6-7 days. If iron is not supplemented, iron deficiency symptoms such as loss of appetite, rough coat, pale skin and growth stagnation generally occur at the age of 10 days. Therefore, piglets must be supplemented with iron 2-3 days after birth. Generally, 1ml of animal blood is injected intramuscularly, and 1ml of dextran iron or dextran iron can also be injected intramuscularly.

Selenium and vitamin e have similar antioxidant effects, which are related to the absorption and utilization of vitamin e. When lack of selenium, piglets develop dysentery, white muscle disease and so on. Most of the diseased pigs are high-grade or fast-growing piglets with normal or low body temperature, hoarseness, walking and shaking, and then the hind limbs are paralyzed. Generally, 0.1% sodium selenite or vitamin E injection 0.5 ml was injected intramuscularly 3-5 days after birth, and another 1 ml was injected before and after weaning. In piglet feed, 0.1 mg of sodium selenite was added per kilogram of feed.

Training piglets from breast milk to feed is the primary task of piglet replenishment. It can exercise the digestive tract of piglets, improve digestive ability, prepare for a large amount of feed intake, and reduce white dysentery. The earlier the piglets start eating, the better. Generally, they can be induced and fed from 5 days old. Wet the feed with a small amount of water, and the keeper wiped it into the piglet's mouth with his hands for 3 or 4 times a day. At the same time, piglet feeding preventive drugs (florfenicol, electrolytic multidimensional, etc.) were added to the feed for 5 days to prevent diarrhea. In the future, feed can be put on the feed trough for piglets to eat freely. At the same time, to ensure clean and adequate drinking water, piglets grow rapidly, metabolism is exuberant, and need more water, so water supply should be ensured. If drinking water is insufficient, it will cause piglets to grow slowly, or piglets drink dirty water and urine and cause dysentery.

Scientific immune procedure and drug prevention: the temperature difference between day and night in early spring is large, the weather is changeable, coupled with the weak disease resistance of piglets, piglets are most prone to disease, in addition to strengthening feeding and management, it is also necessary to develop scientific immune procedures. The piglets were injected with two immune doses of classical swine fever vaccine (advanced immunization) and breast-fed 2 hours later, 1 ml of inactivated swine edema vaccine was injected into the neck of 16 days old, 2 ml of blue ear vaccine was injected intramuscularly at 20 days of age, 2 ml of trivalent vaccine of diarrhea of piglets was injected into the neck of 25 days of age, 0.5 ml of porcine atrophic rhinitis vaccine was injected at 28 days of age, and 0.5 ml of pseudocanine vaccine was injected at 30 days of age.

Dysentery is one of the most common diseases in suckling piglets, usually yellow and white dysentery. There are many causes of the disease, which are mostly caused by cold, indigestion, bacterial infection and other factors, so comprehensive preventive measures should be taken. Thoroughly disinfect the delivery room before giving birth, keep the delivery room dry, warm and fresh during the whole lactation period, especially pay attention to the heat preservation of piglets. In addition to vaccination, drug prophylaxis should be used. Before the piglets were breastfed after birth, each piglet was given 0.1 grams of "suckling pig oral medicine". Use it for 3 days. Add "piglet preventive medicine" to the supplement and mix it in the feed for 7 days. Once the disease occurs, oxytetracycline can be injected intramuscularly 10 mg / kg body weight, oral florfenicol 20 mg / kg body weight, twice a day for 3 days. For piglets with severe dehydration, oral rehydration salts can be taken orally. The formula is as follows: 3.0g of sodium chloride, 2.5g of sodium bicarbonate, 1.5g of potassium chloride, 20g of glucose and 1000 ml of water. It can enhance the disease resistance and reduce the mortality of piglets, and the course of treatment can be significantly shortened if combined with antibiotics.

Respiratory diseases of piglets: long-acting oxytetracycline was injected with 0.5 ml at 3, 7 and 21 days after birth. One week before and one week after parturition, sows were fed with 80% tamoxifen 125 g / d + 15% chlortetracycline 300 g / d + amoxicillin 150 g / d, or "sow perinatal prophylaxis", 10 g per 100 kg feed for 7 days, which can effectively control the occurrence of respiratory diseases in piglets.

Do a good job of hygiene and disinfection: to keep the enclosure clean and dry, feces and garbage should be cleaned in time, and bedding grass should be changed frequently. Let the sow develop regular defecation and urine at a fixed point, wash the pigsty without water, remove the feces in the house in time, make the house dry, keep warm and have no bad smell.

Seriously do a good job of disinfection, enclosure, trough and other regular disinfection, generally every 2 days ~ 3 days of disinfection in winter and spring. 2% to 3% caustic soda, peracetic acid, Weikang and other disinfectants can be used alternately, which can effectively kill all kinds of viruses, bacteria, mycoplasma, fungi and spores.

In addition, let newborn piglets eat colostrum as soon as possible, and make fixed nipples. Feed supplements should be reasonably matched, it is best to feed high-quality commercial suckling pig feed, not inferior and moldy feed to prevent piglets from getting sick. Only by taking the above comprehensive measures can we raise early spring lactating pigs.