"Three Character Classics" for pig breeding
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Sow management grasping the "three phases" empty period: emptying after weaning to breeding is empty period. During the empty period, feeding material should be fed to promote estrus and ovulation; to shorten the breeding interval, to restore the sensation, and to provide nutrition for breeding and fetal development. Pregnancy: Within three weeks after mating, the embryo attaches to the uterine horn at a critical period. At this time, the sow should be kept as quiet as possible to reduce interference and prevent miscarriage or stillbirth. After 4 weeks from breeding to 1 month before birth, the embryos develop slowly and the nutrients needed are not high enough to give coarse materials. If the concentrate is too much, it is easy for the sows to become over-fat, which will cause the anorexia and dystocia of the sow postpartum, which will reduce the milking power and affect the subsequent fertility. Lactation period: One month before delivery to weaned piglets, rapid development of the fetus and lactating period of the sow, the required nutrient level requirements are high, so the fine material should be added one month before delivery. The sheds should be disinfected one week before delivery, and the fines should be reduced three days before delivery, and then gradually increased on the second day after birth to prevent mastitis and diarrhea in piglets. The piglets should also gradually reduce their concentrates 3 days before weaning. The piglet nursed the “three levelsâ€. Birth clearance: After the piglet is born, the piglet should be allowed to eat colostrum as early as possible, and no more than 2 hours at the latest to increase the body strength and restore the body temperature. Feeding Guan: Starting from the 5th to 7th days after birth, the piglets started eating with artificial milk and other feeds, feeding three times a day on the principle of less frequent meals. At the same time, piglets were supplemented with iron twice at the age of 2 days and 10 days of age to promote normal growth of piglets. Weaning off: The traditional weaning time is breast feeding for 60 days. If the feeding is early, it can be 21 days old - 35 days old. The method of feeding pigs fed with "three methods" is divided into three types: free-feeding, semi-restricted feeding and restricted feeding. Free-feeding uses dry powder or pellet feed to allow pigs to feed at any time. Semi-restricted feeding allows pigs to feed freely during the prescribed period of time, and no feeding at other times. Limited-feeding means feeding a certain amount of feed per day. The feed is 2tons--3days a day. Generally, the body weight can be freely eaten before 40 kg, the semi-limit method is used between 40 kg and 60 kg, and the limit method is used between 60 kg and 90 kg. Pig health care to grasp the "three defenses" Prevention of infectious diseases, should implement the principle of prevention, treatment supplemented by the principle of prevention in the first place. Especially to prevent swine fever, piglet paratyphoid, streptococcus, gastroenteritis, foot-and-mouth disease and so on. These infectious diseases have vaccine supplies in the animal husbandry and fisheries departments of counties. Without epidemic prevention and infection, epidemic outbreaks will occur and farmers will even lose everything. Anti-toxicity diseases: ensure feed, drinking water hygiene, feed and dirty water. Green materials should be free of pesticides and herbicide residues. When you feed green food, pay attention to hydrogen cyanide poisoning. Anti-parasitic diseases: Parasitic diseases can affect the growth and development of pigs, increase feed costs, and even cause death of pigs in severe cases. Regular extermination of pigs in vitro and in vivo parasites, do a good job of rodents, mosquitoes and flies work. To keep the bar clean, disinfect once a week - 2 times.