Key points of new technology for fine breeding of nursery pigs

The feeding and management of conservation pigs is an important part of pig farm management, which is prone to problems. In order to put the fine feeding of conservation pigs in place and achieve the goal of improving quality and efficiency, it is necessary to employ people wisely, breed to strive for excellence, breeding to cultivate carefully, and the cost to be calculated carefully. The author has explored a set of effective practical fine feeding techniques for sows in more than 20 years of production practice, and the key points are introduced as follows.

Goal: the survival rate is more than 98%, the incidence rate is less than 3%, and the uniformity is maintained.

① weaning method: "move the mother to stay the piglet" (drive away the sows, leave the piglets) weaning, after weaning to maintain three unchanged: unchanged material; unchanged circle; unchanged litter.

② strict disinfection: after the nursery is thoroughly washed and cleaned, the floor can be disinfected by flame or spray, and the space can be fumigated. Then the pig will be disinfected once a week after entering the empty house for a period of time.

③ group grouping: try to implement the feeding mode of "all in and all out", 10-30 heads per column is appropriate, each head occupies column 0.2~0.3M2. The group transformation had better be carried out in the evening, when entering the group, try to keep the original circle in the same column as far as possible, and regroup the weak and small people in the group with uneven development, especially preferential feeding.

④ gradually change feed: continue to eat piglet pellet feed after weaning, and control feed intake, 7-8% full; after 45-50 days old, gradually change to full-price feed made of high-quality premix or concentrated feed.

⑤ environment requirements: weaning humidity is 55%-65%, temperature should reach 27-25 ℃, and then the weekly 2 ℃ drop gradually reduces to 10-week-old 21 ℃. The smaller the temperature difference between day and night, the better, and prevent thieves.

⑥ feeding method: if you feed in the trough, you should look at the trough and add less frequently, adding 2 to 3 times a day, with a little leftover in the trough after eating; if you use the automatic feeding method, you should keep the material in the barrel uninterrupted.

⑦ attaches importance to drinking water: drinking water can use tap water or deep well water, it is best to use nipple drinking water (height: 25~35cm), separate water tank to facilitate drug administration; using water tank to drink water, we should pay attention to changing water frequently and keep the water quality clean and hygienic.

⑧ disease prevention and control: pay attention to eliminate the "four evils", that is, mosquitoes, flies, mice and wild cats, cut off the way of disease transmission and ensure biosafety. Do a good job in immunization and deworming on time, with emphasis on the prevention and treatment of digestive and respiratory diseases, especially Haemophilus parasuis, edema, streptococci and infectious pleuropneumonia. Improve immunity and disease resistance, take into account anti-virus, anti-bacteria and anti-stress, reduce the occurrence of digestive tract and respiratory diseases. And one of the following can be selected for continuous feeding for 1 week. Fang 1, 6% tilmicosin 1000g, doxycycline 200g, astragalus polysaccharides 500g per ton; Fang 2, 80% pure 125g, chlortetracycline 2kg, amoxicillin 2kg per ton; Fang 3, add electrolytic multidimensional, astragalus polysaccharides powder and Zhiyuanjing to drinking water as described. Immunization: 1 dose of spleen lymphoid vaccine at 60 days of age, 2 mL of foot-and-mouth disease at 65 days, and 1 dose of attenuated vaccine at 70 days of age.

⑨ observation of pigs: daily inspection of food intake, drinking water, health status, isolation and treatment of diseased pigs.