According to the different growth stages of pigs, it is beneficial to provide pigs with different nutrient formula feeds and growth environment, cut off the spread of various infectious diseases, and adopt different feeding methods according to different market requirements, which can greatly improve The comprehensive benefits of pigs. First, the breast-feeding stage: newborn piglets small individuals, all aspects of the body is not fully developed, vulnerable to the influence of the external environment, so usually pay attention to insulation and pressure prevention work. Let them suck colostrum early so that the piglets gain passive immunity. The protein content of colostrum is high, and the magnesium salt that contains laxative effect can promote meconium excretion. In 3 to 4 days, piglets must be supplemented with iron and selenium in a timely manner. One week later, training of suckling pigs should be conducted in order to select materials and attract food: we must strengthen feeding and other work before weaning. These measures can effectively ensure that the suckling pigs have a good birth clearance and feed supplements. Weaning off. Second, the weaning stage: Weaning is the piglet leaving the sow completely independent life, its living conditions have changed significantly. Large-scale pig farms generally use 24-35-day-old early weaning to increase productivity. However, in order to prevent early weaning syndrome, attention should be paid to the following issues: First, pay attention to the full price of nutrition in feed, add some Similar to sow milk composition ingredients such as whey powder; Second, pay attention to adding some acidifiers and enzyme preparations in the feed, because the digestive system of piglets is not perfect, these substances can improve its digestion and absorption capacity: the third is on the eve of weaning, first of all Reduce sow's nutrient content and moisture, so that the amount of milk production gradually reduced, piglets from the original breast-feeding to regular breast-feeding, and gradually reduce the number of breast-feeding, increase piglet feed, so that the gastrointestinal tract of piglets have an adaptive process, these measures Can reduce the risk of sows suffering from mastitis and piglets suffering from gastrointestinal diseases, in order to improve the survival rate of weaned piglets: Fourth, pay attention to the continuity of feeding, management, reduce external adverse reactions to the pigs. Seriously accomplishing the above points will ensure that the source of nutrition for piglets will smoothly transition from breastmilk to solid feed, laying a good foundation for rapid growth in the future. 3. Nursery phase: Nursery pigs refer to piglets weighing between 10 and 30 kilograms. They have been well-developed in various aspects, but they are still very susceptible to external factors. The feeding and management during this period was mainly to control the environment and herds of pig houses. The internal environment reduces stress and controls the occurrence of disease. Therefore, the pig house should have good heat insulation and ventilation performance, and use slatted floor to ensure that each pig can get enough water and feed. In the event of diarrhoea, some antibiotics should be added to the feed as soon as possible, and feed intake should be properly controlled. In the case of feeding full-priced feed and temperature and humidity, it may still have a phenomenon of biting each other. This is the nature of the piglets, and rubber rings, iron chains, plastic bottles, etc. Play to distract and reduce biting. 4. Finishing stage: The pigs in finishing stage have fast growth, high protein conversion rate, large metabolic intensity, and strong adaptability. During the rearing period, the higher nutrition level must always be adopted. In the later period, limited feeding or reducing the energy concentration of the diet can achieve the purpose of rapid weight gain, short feeding period, high hog level and high slaughter rate. This period also needs to find cheap alternatives based on the prices of various feed ingredients on the market to reduce feed costs and the market requirements for commercial pigs to adjust the feed formulation and feeding methods in order to achieve the best economic benefits. In order to enable farmers to bring higher production efficiency and economic benefits, it is necessary to raise pigs scientifically and pigs are raised in stages. This is a scientific way of raising pigs, which can reduce pig farm losses and reduce costs. key.
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