First, the birth period - life regulation Piglet birth is a sudden change in its life history, from living in the mother's body to direct contact with the external environment, coupled with the unresponsiveness of newborn piglets, cold, this stage of nursing work is critical. 1. Insulation is especially important for newborn piglets. When the piglet is born, the temperature of the branch house must be controlled at 22-25°C, and the local temperature of the incubator should reach about 32°C. After the piglet is born, after the piglet is treated according to the conventional method, the newborn piglet should be put into the incubator immediately. After the piglet is dried, the piglet is allowed to feed on the baby's hair, but care must be taken. When the piglet finds the nipple to quietly feed for 30 minutes, the piglet can be placed in the incubator again and the piglets can be fed for 20-30 minutes. Insulation is mainly to prevent the cold and diarrhea of ​​newborn piglets, and reduce the mortality rate of newborn piglets. 2. After all piglets are born separately, the competition for the breasts is very fierce. Newborn piglets must have certain amount of colostrum in order to ensure that they get enough immunoglobulins and increase their resistance to disease. At 24 hours after the piglet is born, letting piglets with lighter weight in a litter of piglets eat 2 or 3 times of milk without competition can achieve the purpose of increasing body weight and reducing mortality. Afterwards, the weak piglets are fixed in front, and the piglets with large, arched points are fixed on the rear nipples so that the piglets can be developed in a consistent manner. 3. Fostering foster fostering is a management method used to reduce breast competition. It is the same number of piglets per litter of piglets and similar in size. Simultaneous fostering of two litter piglets at the same time is to feed all the smaller piglets from one sow, while the larger piglets are fed from the other sow. It has been confirmed that this method is effective in reducing the mortality of pre-weaned piglets. In practice, the following two methods can be used: First, emergency or protective foster care. This method is suitable for the fostering of newborn piglets when the sow is dead or the sow is deficient in milk; the second is direct foster care. The principle to follow: First, the piglets before commencing eat at least 10-12 colostrums at their mother. The second is to foster in a timely manner, to transfer piglets as soon as possible, generally within 6 hours after delivery. The third is the most powerful piglets fostered. Due to different odors during foster care, sows cannot accept newly arrived piglets and attack the new-born piglets. At this time, the sow's urine should be applied to the foster piglets, or the whole group of piglets should be painted the same. Liquids, such as Lysol, mask odors and reduce the rejection of foster piglets. Iron deficiency anemia is a common nutritional disease of piglets. If the disease occurs, piglets will suffer from lassitude, dyspnea, and asthma, which will seriously affect the development of the piglet—death of the piglet. It is generally believed that a large dose of iron (150-200 mg/head) is given to piglets at 3-4 days of age to meet the normal growth needs of piglets. However, according to tests, secondary iron supplementation can significantly improve the disease resistance and survival rate of piglets. The method is: 1 ml of iron preparation (100 mg of iron, preferably dextran glycoside) is injected into the piglets before 3 days of age; 10 irons are given for the second time, the dose is still 1 ml, and the injection method is Intramuscular injection. It is better to add vitamin C to the piglets one day before iron supplementation. Second, the start of food-nutrition regulation Gastrointestinal digestive enzyme activity of piglets increased with age, while the early weaned piglets gastrointestinal digestive enzyme activity decreased, while the rapid proliferation of intestinal microorganisms, including the number of lactobacillus It has a great impact on piglets. Therefore, attention should be paid to the preparation of early weaning piglets: 1. To increase the proportion of animal protein in early weaned piglets as much as possible in fish meal, skimmed milk powder, spray-dried blood meal, and spray-dried pig plasma protein powder. The best results. 2. Add lactic acid and non-starch polysaccharides: The former is mainly used to maintain the gastrointestinal function of pigs, and the latter is mainly the source of energy for intestinal probiotics, which is beneficial to the balance of intestinal microflora and prevent digestive dysfunction. 3. Addition of acidification agent: Add fumaric acid and citric acid to make up for deficiency of stomach acid, promote the propagation of lactic acid bacteria and yeast, and inhibit the propagation of pathogenic bacteria. 4. Addition of enzyme preparations: Enzyme preparations such as proteases, o-amylases, and glucanases are added to the diet to increase weight gain and feed utilization. 5. Use of probiotics: In order to overcome the weaning diarrhea in weaned pigs, Lactobacillus, Bacillus, Streptococcus and Yeast are added to the ration to inhibit pathogenic fungal disease. In short, it is necessary to ensure that the starter diet is full of nutrition, good palatability, and easy to digest, so that the piglets can smoothly transition from feeding to eating mixes and ensure their rapid growth and development. Third, the weaning stage - environmental regulation Weaning is a sudden change in the life history of piglets, if not handled properly, will cause piglets miss sows, restless, thin, affecting normal development. The correct weaning method is an effective measure to reduce early weaning stress in piglets. Currently there are three methods for weaning piglets: weaning weaning, batch weaning and weaning. Among them, weaning is controlled from 4-6 days before the scheduled weaning date, and controls the number of breast-feedings. The first day of breast-feeding is about 5 times, and then gradually decreases. After gradually adapting the mother, the sow is rushed out on the weaning date. go. Batch weaning is one week prior to the scheduled weaning date. Piglets that are to be fattened are segregated first, and underdeveloped piglets continue to breastfeed. The sows are then segregated by the scheduled weaning date. One-time weaning means that when the piglet reaches the scheduled weaning date, the sow is separated from the mountain and the piglet is kept in the original circle. The first two methods can minimize stress because the piglets have a gradual transition. After weaning, the piglet adopts the management method of not changing the circle and not polyculture, that is, driving out the sows and keeping the piglets in the original circle. It is not necessary to feed several litters of weaned pigs at the same time in order to prevent the piglets from being weaned and bite the double stimulation. After weaning, the piglets cannot be reloaded immediately. Within 2-3 weeks after weaning, feeding piglets is still fed. The number of feedings is the same as that of lactation, and the gradual transition is followed. Let the piglet have a customary process and become a feed for weaned piglets one month after weaning. At the same time, we do a good job in the health of the sheds. If the pens are warm and clean, the air is fresh and the sunshine is sufficient, the growth and development of the piglets can be promoted.
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