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Pig farming new technology
Piglets individually weaned and isolated. The piglets were weaned around the age of 2 weeks. Heavier piglets can be weaned 2 days to 3 days in advance, so that smaller, thin piglets can have the opportunity to eat more breast milk, thereby achieving a larger weaning weight. According to studies, weaned pigs weighing more than 6.5 kg can reach market weight 7 days earlier than those with a weaning weight less than 5 kg. Keep weaned pigs on nursery farms away from sow farms to reduce vertical transmission of certain diseases. Isolation feeding increases the number of litters per year and the number of litters per litter. A higher level of care is required for pre-weaned piglets. One-on-one feeding method: The weaned piglet was transferred from the sow house to the finishing house and raised to the market weight. This reduces the traditional link from the sow house to the nursery house and avoids some of the stress reactions that result from this. The main advantages of this method are that the environment has a stable weight gain, labor and transportation costs are low; the disadvantage is that the utilization rate of the pig house is low and it is not possible to do two batches of pigs per house per year as usual. One-for-one feeding methods also require better insulation performance in the finishing house, and the breeder has a higher level of technology. To “move†pigs for fattening: Experiments conducted at the University of Missouri in the United States showed that changing pigs to fattening pigs can increase appetite and increase growth. However, changing the circle should not be too busy. It is advisable to use it once a month. The size and form of the circle must be basically the same. Don't arbitrarily replace or incorporate new pigs in each group, otherwise the pigs will feel uneasy and even bite each other. Sow-feeding: Sows consume large amounts of nutrients in the body during pregnancy and lactation, mainly fat, protein and minerals. In the first few weeks of lactation, the sow's backfat can be reduced by 30%. In order for the sow to return to estrus, the nutrient reserve must be quickly rebuilt. The sow stage feeding method includes at least 4 types of feed: post-lactation material, pre-match material, post-match material, and post-pregnancy material. An increase of 300 kcal intake per day after weaning can increase the number of litters by about one. The added energy must be in the form of starch. Glucose produced from starch stimulates ovulation. Organic trace elements are also conducive to recovery of trace element reserves in sows. Detailed records and environmental controls: In the United States, livestock husbandry is integrated with environmental protection and modern production equipment applications. The environmental problems caused by pig farming are mainly fecal odors. Measures to control odors include installing expensive sewage treatment facilities, changing the content of protein and minerals in feed, adding additives such as Yucca phytosterols or enzymes to feeds, and so on. Many pig farms take legal and moral responsibility for environmental protection. More than 90% of the farms have adopted computerized recording methods. Producers combine production records with financial records, calculate them through computer records, and finely control them to reduce production costs. Making sows more productive: The German animal husbandry experts studied the method of adding 200 mg of Vitamin E and 400 g of carrots to the sows when they were fed from the third day of weaning, and when the sows were in heat, The Additive is reduced by 50% and fed until 21 days after pregnancy. Using this method, the sow's litter size can be increased by 21.9%, and the sows and piglets are strong in physique, and the piglets have a high survival rate. Feeding pigs with tea: For a long time, the Japanese saw tea as an indispensable drink in daily life and saw the tea ceremony as a science. Nowadays, the Japanese have begun to popularize tea with pigs. Add the appropriate amount of tea in the feed and feed it for a long period of time until slaughter. After the analysis of the quality of slaughtered pork, it was found that the original smell of this pork was greatly reduced, and the content of vitamin E was 3 times that of ordinary pork. The most noticeable finding is that this kind of pork has much more hypoxanthine nucleotides (also known as inosinic acid) than normal pork. The amount of hypoxanthine nucleotides in pork is an important factor in determining the taste. Therefore, anyone who has eaten pork with pigs and pork is full of praise. Japan's pig-breeding industry has designated pigs slaughtered with tea as "Tea US dolphins." "Tea American dolphins" is popular with consumers. Feeding saccharin weight gain: According to a foreign magazine report, adding 0.05g saccharin per kilogram of compound feed, first dissolving saccharin in water and then mixing it into the feed, can increase the feed intake of the pig, and the daily gain can be increased. 7%. With every 100 kg of weight gain, feed consumption and costs dropped by 4.8% and 3.5% respectively. Feed citric acid weight gain: British researchers found that adding citric acid to pig feed can increase the palatability of the feed, improve the ability of the pig to digest and absorb nutrients, and increase feed conversion. Adding 30g of citric acid per kg of feed increased the pig's daily gain from 189g to 216g. This method is best for feeding weaned pigs weighing between 5kg and 10kg. Calcium formate: According to a Finnish study, the addition of 1.5 g of calcium formate to piglets during the first few weeks after weaning can increase the growth rate of piglets by more than 12%, increase feed conversion by 4%, and reduce the incidence of piglets. Feeding oxygenated sodas: According to foreign data, weaned piglets are fed with oxygenated soda and weaned piglets are used for drinking once every 5 days. Piglets can gain 200g-250g daily. Among them, oxygenated soft drinks are common. Add a certain proportion of oxygen to drinking water, usually 1 liter of oxygen in 1 liter of water. If you add some additives such as fat additives in soft drinks, the better. Feeding Vitamin C to improve semen quality: German researchers found that adding 1 g to 4 g of vitamin C per day to the boar's feed can significantly increase semen quality in boars. In addition, U.S. trials have also demonstrated that adding 1 g of vitamin C per day to the sow diet one week prior to the birth can significantly reduce piglet umbilical cord bleeding and piglet mortality. Feeding baking soda to gain weight: Stevens, a livestock scientist at Cornell University in the United States, discovered that adding soda ash to lysine-poor pig feed can compensate for lysine deficiency and facilitate the digestion and absorption of crude fiber. Pigs are long and fleshy and gain weight quickly. Sweet potato fermentation feeds pigs: The fresh potatoes are mixed, smashed into mud and lumps, crushed into potato pulp, then mixed with rice bran and a bag of compound microbial starter, and mix well to be the sweet potato mixture. Adjust the moisture content of the mixture to 65% - 70%, and then put it into a gas-tight, watertight, sterile plastic bag or concrete pool. A layer of 25cm-30cm bran is laid on the bottom layer of the bran, then poured into the mix, compacted while holding, leaving no gaps, and finally adding a layer of bran to the top layer. Be careful not to overfill so that fermentation does not spill juice. Sealed tightly with plastic film, often checked, and the seams were immediately covered. Three days after silage fermentation, the sweet and sour flavor of the fermented material can be taken by feeding. Feeding method: The feeding amount is determined according to the weight, age, sex, etc. of the pig. General piglets, sows, pigs, boars should be fed less, the daily feed should be controlled at about 20% of the diet: pigs weighing less than 35kg feed each 1.5kg-2.5kg of fermented sweetpotato and green feed each day, 0.8kg of formulated feed 35kg-60kg pigs, each fed 3.5kg-4.5kg of fermented sweetpotato material and green feed, 0.9kg-1kg of compound feed, 60kg or more of pigs, fed 5kg-7.5kg of sweet potato material and green feed each day, and 1kg of compound feed -1.25kg. Do less to add ground, regular ration, for enough drinking water, in order to help improve their digestive capacity.